HINT: You can navigate this page by clicking the yellow or green underlined text
How were they formed?
Where can they be found?
The Project Scope - The Purpose of This Webpage
Naming Prints
Interpreting the Prints
Glossary of Ichnological and Geological Terms
Conclusion

How were they formed?
How and why were the footprints of dinosaurs from the Eastern North America preserved?  Fortunately during the separation of the tectonic plates that made up the large continent Pangea, the Appalachian mountain range provided the rock and sediments that filled in this rift basin.  This action caused the formation of large mudflats that continued to accumulate sediments, throughout the Triassic and early Jurassic period, and formed what is called the Newark basin.  Over 30 million years of accumulating sediments (and basalt layers) formed this basin which can exceed more than 7 kilometers in certain areas.  The relatively fast accumulation of sediments allowed for the preservation of footprints, trackways, and in very few cases bones.

But footprints and trackways are only preserved under special conditions.  When the mud is too wet the footprint is formed but quickly fills in (mud collapse).  If anything is preserved it's thin and most likely deformed.  If the mud is too dry the track is faint and barely detectable.  However, not only does the mud have to be the proper consistency, a layer of biofilm (algae - also referred to as biolamination) has to be present or the foot of the dinosaur would not have cleanly separated from the mud.  A muddy foot does not leave distinguishable tracks.  But under the proper conditions a print would have been formed, then the following events have to take place to preserve it.  The mud has to dry out then the footprint has to be filled in by the accumulating sediments.  Given enough time and pressure (from the weight of sediments or basalt above) the rock lithicates and the sediments solidify.  When the rock is split a natural imprint (impression, negative relief, or mold) on the bottom layer and a natural cast (positive relief) from the top layer of sediments is revealed.

It is my belief (and I might be wrong) that without the biolamination the rock will not cleanly separate if the sediments below and above the track layer are too similar.  Sometimes the footprint is so well preserved that the scales of the foot are easily seen.  Some dinosaurs were also heavy enough to deform layers of sediment below the surface; such impressions are called "undertracks" or "ghost prints" because they reside under the original track layer.  Although it seems that very specific conditions must be met in order for a print to be conserved, one most consider the number of prints one creature could have created during its lifetime.  In fact most prints are found in a few strata (layers) within the almost 7 km of sediments deposited over 30 million years.  It's very common to find a productive layer (strata) containing prints because only at that time were the conditions right to preserve prints.  Interestingly is the large slab of prints housed by the Rutgers Geology Museum where the same species left many prints but they differ in the depth of the print.  Perhaps they were left by the same creature but at days or weeks apart as the mud was drying out.  For a more extensive look into how they where formed click here.

Where can they be found?
Footprints and trackways can be found anywhere accumulating sediments formed, preserved, and where the strata can be cleaved apart.  Footprints are not limited to only the Triassic and Jurassic periods.  Although the focus of this project is within a 30 million year time span from the Triassic to early Jurassic (235 to 204 million years ago or mya), the "Dinosaur Footprints and Trackways From Various Locations" webpage has samples of footprints from various locations around the world from the early Permian period to the Cretaceous period (295 to 65 mya).  And needless to say, footprints are not limited to only dinosaurs.  Trackways from insects, reptiles, amphibians, worms, and trilobites from a wide range of periods and in almost all continents are the fossil traces left by creatures.  So vast is the science of Ichnology that this project has been narrowed down to a manageable focus on vertebrate ichnology of the East coast of North America.

The Project Scope - The Purpose of This Webpage
That leads us to our project scope.  This project is devoted to the study of prints from the Triassic and Jurassic periods of the East coast of North America.  Below I've taken a chart created by Paul E. Olsen & Emma C. Rainforth, Dept. of Earth and Environmental Sciences, Columbia University and linked the formations below to a formation specific webpage.  The system created allows the cataloging of the prints found by formation.  In addition, fauna specific webpages will be created so that one can establish relationships regarding the age span (during what periods does the fauna appear and end), location span (which formations or States can the prints be found in), trending size changes (are the prints getting larger over time?), etc.  Eventually, by expanding the scope of this project, prints from the East coast of North America can be compared to similar prints found around the world.

Formations of the North East Coast "Central Atlantic Margin Rift System Late Triassic" Paul E. Olsen & Emma C. Rainforth Dept. of Earth and Environmental Sciences Columbia University
PERIOD	AGE (starts mya)	Deerfield(MA)	Hartford(CT)	Newark(NJ)	Gettysburg(PA)	Gettysburg& Culpeper(MD)
Early Jurassic Early Triassic	Sinemurian (203.5) Hettangian (208.0) Rhaetian (209.5) Norian (223.4) Carnian (235.0)	Turners Falls Fm Deerfield Bt Fall River Beds Fm not present Sugar Loaf Fm not present	Portland Fm Hampden Bt E Berlin Fm Holyoke Bt Shuttle Meadow Fm Talcott Bt New Haven Fm not present	Boonton Fm Hook Mt Bt Towaco Fm Preakness Bt Feltville Fm Orange Mt Bt Passaic Fm Lockatong Fm Stockton Fm	Booton Fm Hook Mt Bt Towaco Fm Preakness Bt Feltville Fm 1 Orange Mt Bt 2 Passaic Fm 3 Lockatong Fm 4 Stockton Fm 5	not present* not present* not present* not present* not present* Tibbstown/Catharpin Creek Formations Bull Run Fm* (Gettysburg Fm*) Manassas Sandstone not present*

1 - Pottstown or Upper Brunswick Shale, 2 - Jacksonwald Basalt, 3 - Perkasie-upper or Lansdale-lower Shales, 4 - Gwynedd Shales, 5 - Norristown Shales
* - I'm working on identifying the current names of the formations in MD

Late Triassic - Early Jurassic Dinosaur Ichnofaunas, Eastern North America and Southern Africa

Emma C. Rainforth, Dept. of Earth and Environmental Sciences, Columbia University

Naming Prints
Unfortunately where bones are found footprints are not typically present, and where footprints are found bones aren't.  It is an extremely rare occurrence to find the remains of a dinosaur and the creature's last steps.  Hence, footprints are given separate names because we can never be exactly sure what species could have formed them.  There are a few cases where scientists have agreed on which (type of) dinosaur may have left the footprints.  But typically scientists are hesitant to do so.

Interpreting the Prints
But can anything be learned from the tracks or are we just collecting fossils to fill our shelves?  Well if you're fortunate to find a trackway, one could learn a few things about the creature.  One can determine easily if the creature walked on two feet (bipedal motion) or four feet (quadrupedal motion).  The front foot of a quadruped is called the manus, whereas the back foot is called the pes.  Quadrupedal dinosaurs seemingly walked like most diagonal walkers do nowadays, by moving the right manus and left pes at about the same time, alternating with the left manus and right pes.  Trackways show the manus print slightly in front of the pes print on each side of the trackway.

The posture of the creature can also be determined, whether it walked with a sprawling gait, semi-erect posture, or erect posture.  The sprawling gait is an indication of a primitive posture and consists of having the limbs extended away from the body.  This posture creates a sinuous motion of the body during walking.  Modern lizards have this posture and can move very fast.  However, the sinuous motion of the body alternately collapses the lung on each side, preventing breathing during running.  That is why lizards have to stop completely and pant after they run, even though they risk capture.  Crocodiles have a semi-erect posture (sometimes called semi-improved).  When moving slowly, their posture is sprawling, but when they run, their body straightens out and they pull their legs nearly under their body.  When they carry their bodies more nearly erect, they are said to exhibit a "high walk".  In this posture the lungs can still operate.  Some crocodiles are even capable of galloping.  Galloping is the fastest type of longer term quadrupedal motion in which all four feet are off the ground simultaneously during one phase of the step cycle.  The erect posture (often called fully improved) is where the limbs are held directly under the body.  This allows easy breathing while running.  And most importantly, the erect posture allows for full-time bipedal motion, thus freeing the hands for grasping.  more to be said on direction of prints, herding, ghost or underprints, varying walking or running speeds and the effect on the print left behind, etc. the Triassic/Jurassic sandpit
Here's a great 5 minute video with Stephen Gatesy, Martin Lockley, and Emma Rainforth
High Bandwidth from AMNH video © 2005     Dial-up (56K) from AMNH video © 2005

Glossary of Ichnological and Geological Terms
For your convenience here is a link to a glossary of ichonological and geological terms. Glossary

Conclusion
The science of ichnology is quite vast covering all fossils (not including bones or teeth) left behind from any living creature.  This would include footprints and trackways, tail drags, insect burrows or borings, tooth marks (gnawings), eggs and nests, gastroliths (gizzard stones), and coprolites (dung).  It is also irrespective of time or location.  Thus again a reason to focus this project to a specific area.

PLEASE NOTE: I would be very interested if you have a photo of a footprint or trackway from the Newark Supergroup: MA, CT, NY, NJ, PA, MD, VA, NC, or SC.  Or from Europe: France, Portugal, Spain, or Africa.  Please e-mail me a high quality photograph and some information about the footprint.  To verify authenticity I will need at a minimum the formation it was found in, the town where it was found (be as specific as you wish), the year it was found, and the size of the footprint (or place a coin or ruler in the picture).  A photo of a pretty print is useless to this webpage unless I know where it came from and where it best fits on this page.  Photos from museums will also be useful but let me know which museum owns it.  When I get the chance I will post your photos on this webpage.  If you give me your first name or nickname (for credit) I'll post it with the photograph.  THANKS!!!

Note the T-Rex foot, the three toes in front and the claw in the back of the foot (dew claw or hallux) (AMNH). Notice a different T-Rex foot lifting off the ground but the claws are driven into the ground and hooking up (AMNH). Note the ??? foot, the three toes in front and the hallux on the side of the foot (AMNH). Note the Duckbill dino foot, the three toes in front (AMNH). Note the ??? foot, the four toes in front and the hallux lower on foot (AMNH).

Henry standing next to a Eubrontes trackway from the AMNH. A close-up of two Eubrontes prints. The full Eubrontes trackway.

A Hadrasaur trackway from the AMNH. A close-up of a Hadrasaur print. A replica of a portion of the Paluxy trackway (AMNH).

Various Locations Around The World - All footprints here are from various sites around the world and from various periods. Although our intention is to focus on Triassic and Jurassic periods and to the Newark Supergroup Rift Basin, neglecting other sites and periods would be a terrible mistake. So much information can be gained by studying the fossils record outside of our primary scope. Here we present site photos and a limited description of each. Enjoy!
Triassic megatracksites in carbonate tidal flats of the Germanic Basin Lower Muschelkalk vertebrate tracks of the Germanic Basin were described first of FABER (1958) from Winterswijk (E Netherlands). New findings occured in NW Germany at Haarmühle (HOLST, SMITH & VEENSTRA 1970). In the years 1976 to 1988 OOSTERINK did many taxonomic work about tracks of Winterswijk, in some papers togeter with DEMATHIEU. In the Teutoburg Forest new discoveries were made 1996 by the author later in the Osnabrueck hills (DIEDRICH 1998), Thuringia (DIEDRICH 2000) North Hess (DIEDRICH 2001) recently in Bavaria (Germany) and finally in Saxony Anhalt (Diedrich in prep). Track bed high resolution Stratigraphy Tracks occurr in "track beds" built of some cm thin up to 2 m in height laminites. In these track beds every laminae could be a "track horizon". Track beds allways contain many track horizons. These horizons situated in mm thinly beded algal laminates could not be correlated in contrast to the track beds. Many Middle Triassic track beds can be followed in different strata of the Upper Bunter, the Lower Muschelkalk or "Jena" Formation, the Middle Muschelkalk and basal Upper Muschelkalk in the Germanic Basin. The first track beds occurr in the uppermost Roet Member (Upper Bunter). Here up to four track beds are recently known. In the Lower Muschelkalk track beds are situated in the middle Lower Wellenkalk (muW1b) just below the "Rote Scheibengeröll-Bed". They are followed by track beds in the upper Lower Wellenkalk (muW1c) underlaying the Lower Oolith bed. Most tracks have been discovered in the Oolith member, especially in the "Graue Zwischenmittel" between the Lower and Upper Oolithic beds. The next tracks have been recovered from the lowermost Middle Wellenkalk (muW2a). At a few sites another thin track bed is situated at the top of the muW2b. Just below the Lower Terebratula bed at the top of the Middle Wellenkalk (muW2b) another horizon is widely distributed. The last track beds are found at the top of the Upper Wellenkalk Member in the so called Gelbe Plattenkalk-Horizont (top of muW3). Also in the overlaying Middle Muschelkalk two track beds occur in theorbicularis member (mm 1). The last track beds in the Middle Muschelkalk are of Upper Marl/Dolomite member (mm 4) time, one in the middle and one at the top of these member. In the Gelbe Basisschichten (moGB) of the basal Upper Muschelkalk a last track bed is present. A "Middle Triassic Megatracksite Project" (MTMP) about vertebrate tracks in carbonate tidal flats of the Germanic Basin during Muschelkalk Formation (Middle Triassic) was started. Many new localities were found since 1996 described here in a short internet presentation. New prospections are still in work to get further information of the middle Triassic megatracksites in the Germanic Basin. http://www.paleologic.de/vertebratetracks1.html
Procolophonichnium sp. (procolophonid parareptile)
	1) Trackway of Procolophonichnium haarmuehlensis (HOLST, SMIT & VEENSTRA) of Winterswijk, (E-Netherlands). Scale 1cm. Geologisch-Paläontologisches Museum der Universität Münster. Foto: ©DIEDRICH2001. 2) Procolophonichnium - trackway metric. Scetch: ©DIEDRICH2002. 3) Manus and Pes imprints of Procolophonichnium haarmuehlensis (HOLST, SMIT & VEENSTRA) of the mm1 of Detmold, (Teutoburg Forest, NW-Germany). Scale cm. Lippische Landesmuseum Detmold. No. mm 4. Fotos: ©DIEDRICH2001. 4) Procolophonichnium - trackway movement types. Drawing: ©DIEDRICH2002. 5) Procolophonichnium ichnofacies. Trackways and single imprints of Procolophonichnium haarmuehlensis (HOLST, SMIT & VEENSTRA) of Winterswijk, Lower Wellenkalk Member (muW1), Lower Muschelkalk(E-Netherlands). Negative slab. Scale 1cm. Geologisch-Paläontologisches Museum der Universität Münster. Foto: ©DIEDRICH2001.
Rhynchosauroides sp. (lepidosauromorphs)
	1&2) Manus (left) and Pes (right) imprint of Rhynchosauroides from the orbicularis member of Detmold (Teutoburger Wald, NW Germany). Length 6 cm. Lippisches Landesmuseum Detmold. Foto: ©DIEDRICH2001. 3) Rhynchosauroides - trackway metric. Scetch: ©DIEDRICH2001. 4) Rhynchosauroides - trackway movement types. Drawing: ©DIEDRICH2002. 5) Rhynchosauroides ichnofacies. Trackways and single imprints of Rynchosauroides of Winterswijk, Upper Röt Member (so4), Upper Bunter (East Netherlands). Negative slab. Scale 1cm. Naturkundemuseum Bielefeld. Foto: ©DIEDRICH2001.
Brachychirotherium (rauisuchian crurotarsan)
	1) Brachychirotherium paraparvum. Manus and pes imprint pair from Winterswijk. Pes-imprint about 12 cm in length. Foto: © DIEDRICH & OOSTERINK 2002.
The excavation of dinosaur trackways (Wealden, Cretaceous) in the Weserbergland, Germany Tridactyl dinosaur footprints were found by quarry worker Rainer Wiegmann in a sandstone quarry near Hannover in August 2004. Soon it became evident that several trackways of iguanodontids and theropods were excellently preserved in a siltstone layer covered with ripple marks. These trackways were formed 140 million years ago, when dinosaurs walked through mud on the sea shore. This shoreline connected probably several island in the area that is nowadays northern Germany. The trackways are so beautiful and rare that their subsequent excavation and scientific study was commenced. A cooperation between the Niedersächsisches Landesmuseum Hannover and the Dinopark Münchehagen was established to evaluate, prepare and excavate this unique find. The scientific work is conducted by Dr. Annette Broschinski (curator at the State Museum), Nils Knötschke (preparator at the Dinopark), and myself, Oliver Wings (currently on a scientific trainee position at the State Museum). However, without the help of many other people from the State Museum and the Dinopark, including several interns, this excavation would not be possible. The website was created as a diary to document the excavation Progress at irregular intervals. Visit the webpage for updates. http://www.dinosaurhunter.org/weserber.htm
Iguanodon
	Copyright of all pictures by Dr. Oliver Wings 1) A block with several beautiful track casts. The only problem is its mass: about four tons. 2) Some tracks are covered with latex. 3) A possible theropod trackway in the middle of the photo, a deep iguanodontid on the right and a dirty hominid foot on the left. 4) The cleaned trackway, ready for casting. 5) Look at these deep imprints, it must have been very soft mud. 6) Three iguanodontids walked here 140 million years ago. 7) Cleaning off the top layer after a rain storm.
Permian Trackways on Coconino Sandstone from Northern Arizona Fossil reptile trackways on Coconino Sandstone from Northern Arizona. This nearly 280 million year old specimen dates from the Early Permian Period of the Upper Paleozoic Era. It's not entirely known what reptiles made these tracks, they probably belonged to a group of mammal-like reptiles known as caseids. At the time these reptiles wandered the Colorado Plateau region of Northern Arizona, the area was covered by a desert environment of massive eolian deposited sand dunes. These ancient tracks were actually made in a dry dune environment, not in a wet one as commonly reported.
Caseids
	The specimen contains the tracks from at least four different reptiles along with a few isolated prints. The piece measures at the widest points, 19 inches long by 14-1/2 inches wide. In the upper portion of the slab is the trackway of a reptile that made a "u-turn" in the sand. While some of the tracks appear as slight depressions in the sand, a number of the prints are about a 1/4 of an inch deep with visible claw marks and small crescents of sand piled up behind the tracks. The prints on the average are about 3/4 of an inch wide. In the upper left hand portion of the slab is the trackway from a very small reptile that intersects the above trackway. Although some of the trackway was covered up by the soft shifting sand, a number of detailed tiny prints remain. The trackway itself measures 1-1/4 inches across and each of the prints are about a 1/4 of an inch wide. On the bottom portion of the slab, two reptile trackways can be seen side by side. On the average these reptile prints measure about 3/4 of an inch wide. These are also nice deep impressions with claw marks visible in some of the tracks.
Caseids
	The specimen contains the tracks from at least four different reptiles and measures at the widest points, 13-1/2 inches long by 15-3/4 inches wide. This specimen contains the nicely detailed prints from four different reptiles on two different layers geologically deposited at different times. In the photographs this appears as the heavy line that runs through the slab. The top layer that contains three different trackways is approximately 1/16 of an inch thick. At one time this layer could be separated from the bottom slab, but during the preparation of the specimen it has been glued down producing an awesome display piece. Starting from the left side of the slab is a trackway containing four prints. These prints measure 3/4 to 1 inch wide and show good claw detail. As stated above, these prints are at a slightly lower layer than the top trackways and were deposited at an earlier time. Toward the center of the slab is a nice detailed trackway probably made by Cheilichnus duncani. While the prints on the right side are slightly more visible, nearly all of the prints exhibit great claw and toe detail. In a few on the prints you can see that there are five toes on the rear prints and four on the front, which is characteristic in this mammal-like reptile. These prints measure on the average 3/4 of an inch wide. The next set of tracks can be seen starting in the center of the slab and heading toward the upper right hand corner. This set of prints appear as long slender claw marks with several slight impressions behind them. The longest of the prints in this trackway are nearly an inch long and appear to be the rear feet. With a distance of six inches between the rear prints and almost straight in line, (twice that of the stride on the Cheilichnus steps to the left of them), it seems that this reptile was possibly traveling at a running gate, with its front feet barely leaving visible traces in the sand. Along the right side of the slab is another trackway similar in size and shape as the first set. Each print measures on the average approximately an inch wide and claw marks are visible in most of the prints. It is possible that some of the these trackways belonged to the same species of reptile, but traveling at different speeds, thereby producing different looking impressions. There is a visible seem around the edge of the specimen and it appears that the layers can be separated, but they can not. Also, the last photo is of the back of the specimen. Visible are the positive claw impressions of another reptile trackway that appear as large dots.
Caseids and Laoporus
	The specimen measures 15.5 inches long by 8.5 inches wide. The specimen contains the tracks from a number of different reptiles scattered around the slab. They vary from nice detailed impressions with toe and claw marks visible to faint impressions in the sand. These tracks were probably made by several different mammal-like reptile species that inhabited the prehistoric dune environment that once covered the Colorado Plateau region of what is now Northern Arizona. These mammal like reptiles walked with their legs directly under their body rather than splayed out far to the side like most modern reptiles. Characteristically, a tail drag is seldom seen. The larger of the tracks may have belonged to Laoporus, which seems to have been a dominant Permian species.
???
	The fossil contains the "positive" or natural cast portion of a reptile trackway. The specimen measures 8-1/2 inches long by 6 inches wide. It contains a large set of nice reptile tracks that are raised about 1/4 of an inch above the surrounding slab. Each print exhibits great toe and claw detail, along with great texture in the surrounding sand. It is not known what reptile species left these prints.
Caseids and Laoporus
	The specimen measures 14 inches long by 12 inches wide. The specimen contains the tracks from at least three different reptiles. The most notable are the nice deep impressions seen crossing most of the slab. These tracks on the average measure about 1-1/2 inches wide and show nice toe and claw detail. There are a number of slight impressions from at least two other reptiles in the lower portion of the slab. The claw marks are slightly visible, including the tracks from a very tiny reptile which measure about a 1/4 of an inch wide. These tracks were probably made by several different mammal-like reptile species that inhabited the prehistoric dune environment that once covered the Colorado Plateau region of what is now Northern Arizona. These mammal like reptiles walked with their legs directly under their body rather than splayed out far to the side like most modern reptiles. Characteristically, a tail drag is seldom seen. The larger of the tracks may have belonged to Laoporus, which seems to have been a dominant Permian species.
Cheilichnus duncani
	This slab measures approximately 17 inches long by 7-1/2 inches wide. The specimen features a nice detailed trackway probably belonging to Cheilichnus duncani. This mammal-like reptile walked with its legs directly below its body rather than splayed out to the side like most reptiles.
Arthropod
	This slab measures 18 inches long by 8 inches wide. The specimen contains a large detailed insect trackway of some kind of arthropod. Possibly belonging to a large spider-like insect called Octopodichnus, or a scorpion-like insect called Paleohelcura.
Picketwire Canyonlands Dinosaur Trackways, near La Junta, Colorado There is a very long exposure of Jurassic age footprints in the Morrison Formation. http://www.du.edu/~lconyer/picketwire_canyonlands_dinosaur_.htm
Sauropods
	1) Well exposed at sunset with water in them from a recent rain. 2) An aerial photo of them shows how extensive they are on one bed.
Lark Quarry, Winton, Queensland, Australia This is a stampede site, but not an ordinary one. The Lark Quarry dinosaur trackways, situated 110 kilometres south-west of Winton in southern Queensland is believed to be the world's only preserved dinosaur stampede site. Some 93 million years ago, a large carnosaur trapped a group of much smaller dinosaurs on the edge of a prehistoric lake. The panicked footprints of the prey and the large stalking tracks of their predator, which have become fossilised over time, offer a brilliant snapshot of dinosaur life. There were three types of dinosaurs that left footprints - two types of theropods, which were two-legged meat eaters of the order Saurischia (lizard-hipped) and one ornithopod, two-legged plant-eaters of the order Ornithischia (bird-hipped).
Saurischia & Ornithischia
	Photos of the stampede.
??? Quarry, Raritan Formation, Woodbridge, New Jersey This footprint is one of seven discovered in 1920-1930 in a clay pit in Woodbridge, NJ. The animal was a carnivorous dinosaur named Megalosauropus. This is the only known Cretaceous age dinosaur footprint from the east of the Mississippi River. It's from the Raritan Formation (90 million years old).
Megalosauropus
	Photo from the Rutgers Geology Museum.
Lagosteiros bay in Cabo Espichel, Seimbra region, Portugal At the Lagosteiros bay in Cabo Espichel is a locality that reveals multiple track bearing levels from the upper Jurassic. The impressions in limestone are well conserved, two of which belong to a sauropod that limped, and excellent examples of herding sauropods that moved southeast. The local fishermen of the region have known these trackways since the 13th century. Without knowing how they where formed the legend was that they where left by a gigantic mule that transported the Virgin Mary from the sea up to the top of the cliff. The smaller sauropod prints ranged from 38-46 cm (pes length), and 25-30 cm (pes width), with a stride of 170-210 cm. The larger sauropod prints ranged from 70-73 cm (pes length), and 44-55 cm (pes width), with a stride of 230-265 cm. The set of theropod prints are also present which ranged from 42 cm (pes length), and 35 cm (pes width). Was the theropod stalking the sauropods? http://www.mnhn.ul.pt/dinos/public_html/Jazidas/indexing.html
Sauropods and a Theropod
	1) A photo of the side of the cliff with trackways. 2) Another photo of the cliff side. 3) The theropod prints. 4) More sauropod prints. 5) A depiction of the "giant mule".
Fossilized dinosaur tracks in the limestone beds of the Paluxy River, near Glen Rose Texas For many years claims were made by strict creationists that human footprints or "giant man tracks" occur alongside fossilized dinosaur tracks in the limestone beds of the Paluxy River, near Glen Rose Texas. If true, such a finding would dramatically contradict the conventional geologic timetable, which holds that humans did not appear on earth until over 60 million years after the dinosaurs became extinct. However, the "man track" claims have not stood up to close scientific scrutiny, and in recent years have been abandoned even by most creationists. The supposed human tracks have involved a variety of phenomena, including forms of elongate, metatarsal dinosaur tracks, erosional features, indistinct markings of uncertain origin, and a smaller number of doctored and carved specimens (most of the latter occurring on loose blocks of rock). A few individuals continue to promote the alleged human tracks, but the claims are not considered credible by either mainstream scientists or major creationist groups. (Glen J. Kuban) http://paleo.cc/paluxy/paluxy.htm
Sauropods and Theropods
	FIRST ROW: 1) 2 nice Acrocanthosaur tracks in a row at campground site. 2) 2 theropod tracks at the main site. 3) 3 Acrocanthosaur tracks along the bank at campground site. 4) 4 theropod tracks in a row from Taylor site. 5) A better Ornithopod track from Taylor site. 6) Acrocanthosaur track at campground site. SECOND ROW: 7) Acrocanthosaur track-campground site on of 8 in a row. 8) Acrocanthosaur tracks in a row at campground site. 9) An uncleaned track at the campground site. 10) Erosional markings (of the Glen Rose Limestone) that were once mistaken for human prints. 11) Glen at campground site 12) John and Glen at Track in Glen Rose Square. THIRD ROW: 13) John pointing out a nice Acrocanthosaur track (Eubrontes glenrosensis) at the campground site. 14) Nice Acrocanthosaur track from campground site. 15) Ornithopod track from Taylor Site. 16) Paluxy track from Sommvervell Museum. 17) Part of the Main track site and the extension of the Roland Bird Excavation in the AMNH. 18) Sauropod Tracks at the main track site.
Dinosaur Track Found in Alaskan Park ANCHORAGE, Alaska - A track from a three-toed dinosaur believed to be about 70 million years old has been discovered in Denali National Park, the first evidence that the animals roamed there, scientists said. The footprint was found June 27 by a University of Alaska Fairbanks student taking a geology field course. The fossil is 9 inches long and 6 inches wide, officials said. The discovery's importance was its location in Interior Alaska, far from the coastline where other tracks have been found, said Anthony Fiorillo, curator of earth sciences at the Dallas Museum of Natural History. "It's not necessarily the track itself that's significant," he said. "It's where it is that's got us all excited." From the size of the track, he estimates the meat-eater was 9 to 13 feet long. "You are looking at a very large, birdlike animal except it has teeth and a tail and instead of wings, it has arms," he said. A rough comparison, he said, would be a scaled-down Tyrannosaurus rex. Susi Tomsich, an undergraduate at the University of Alaska Fairbanks, spotted the track on the underside of a ledge. "Something told me to look around and I did and I spotted this one," she said. She pointed it out to Paul McCarthy, associate professor of geology, who instantly recognized what she had found. "I gave a little howl," McCarthy said. "It was a big rush." By DAN JOLING, Associated Press Writer Wed Jul 6, 8:46 AM ET http://news.yahoo.com/s/ap/20050706/ap_on_sc/denali_park_dinosaur_5;_ylt=AjSn_dq0ihlNXyuRTWFNAMdsaMYA;_ylu=X3oDMTA5bGVna3NhBHNlYwNzc3JlbA--
Alaskan Dinosaur Track
	1-4) The footprint is 9 inches long and 6 inches wide. 5) Map of the park where the print was found.
Dinosaur Tracks Found in Utah Coal Mines CHESTERFIELD COUNTY, Utah - This gigantic footprint, the largest yet found in Utah, measures 4 feet 5.5 inches long; 2 feet 8 inches wide; the stride was 12 feet and width of trackway 3 feet 8 inches. It was donated by Mr R W Magraw, of the Chesterfield Coal company, to the University of Pennsylvania, his alma mater. Mr E H Burdick, Utah state geologist, had a replica made which is in the Strevell collection. The existing conditions and the number of tracks exposed in the mine workings at Standardville make it possible to measure accurately a dinosaur's stride and trackway. We found four tracks 34 inches long, 27 inches wide, evidently made by the hind feet of a large three-toed dinosaur. The stride was 10 feet 4 inches, trackway 3 feet 7 inches. Nearby we found a four-toed track 16 inches long. An interesting feature is that many, if not the majority of the tracks, show that the dinosaurs were walking in an easterly direction. It is said that "in England the tracks all run one way, from west to east." The discovery and collection of these footprint casts has been of great interest to eastern paleontologists, owing to their size, compared with those of the Connecticut Valley as well as to local scientists and enthusiasts. http://www.stadiumweb.com/reprints/dinosauropodes.html
Dinosaur Tracks Found in Utah Coal Mines
	1-5) The footprint is 4 feet 5.5 inches long.