traveltip1 Posted August 6, 2020 Share Posted August 6, 2020 I found these Rhynchosauroides trace fossil trackways well-defined in the Triassic red bed sedimentary deposits in the Newark Basin in southeastern Pennsylvania. Lincoln cent shows scale. 5 Link to comment Share on other sites More sharing options...
traveltip1 Posted August 6, 2020 Author Share Posted August 6, 2020 10 trackway prints are circled green. 7 1 Link to comment Share on other sites More sharing options...
traveltip1 Posted August 6, 2020 Author Share Posted August 6, 2020 This illustrates the creature that made these tracks. 2 Link to comment Share on other sites More sharing options...
Monica Posted August 6, 2020 Share Posted August 6, 2020 @Nimravis - you might like to see these Cool trackway finds! 1 Link to comment Share on other sites More sharing options...
Nimravis Posted August 7, 2020 Share Posted August 7, 2020 Nice trackways Link to comment Share on other sites More sharing options...
Coco Posted August 7, 2020 Share Posted August 7, 2020 Hi, Only Americans know the size of the piece (of Lincoln or other character), don't use that ! We are a lot of foreigners on this forum. Nothing will ever be worth a rule in inches or centimetres to assess the size of the fossils. Otherwise, you can always give the size in the text of your message. And if you don’t have a rule, it’s easy to make one on cardboard to take your pictures. Coco 2 ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
Miocene_Mason Posted August 7, 2020 Share Posted August 7, 2020 Very nice! Not easy to find those deposits “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
BigKen Posted August 8, 2020 Share Posted August 8, 2020 Very cool! Not looking for specifics but as a lifelong South Jersey boy, I am curious what part of southeastern PA.... very generally speaking... you found those. Link to comment Share on other sites More sharing options...
Jeffrey P Posted August 8, 2020 Share Posted August 8, 2020 Incredible awesome specimen. Big congratulations on that. Thanks for sharing it. Link to comment Share on other sites More sharing options...
PaleoNoel Posted August 9, 2020 Share Posted August 9, 2020 Great specimen! Would love to find something like that. Link to comment Share on other sites More sharing options...
Arwyn Posted March 28, 2021 Share Posted March 28, 2021 Central Montgomery County is ichnite (tracks and footprints) fossil paradise (if you now where to look). Here are some more, (all collected this year 2021) in the Perkiomen creek basin between Green Lane and Aracola. The fossil bearing strata are red bed mudstones and v. fine grain sandstones. Here's the geology and lithography for fellow fossil wonks: Upper Triassic, Norian Period (~210 million years) Strata: Graters member of the Newark Supergroup, within the Passaic formation overlying the Lockatong formation. These mudstones are commonly associated with ripple marks and the desiccation cracks of drying silt banks. Paleoenvironment: Revueltain Tetrapod fauna, found in Pangean lake basin, lake margins, or alluvial mud flats. Most commonly found tetrapod ichnites include Rhynchosauroids, Therapod grallators, and Atreipus (or related Ornithischian) Most tracks range in size from that of a chicken peep to an adult crocodile. Fossil producing beds are restricted to a few distinct stata layers and can be challenging to locate--but are abundant in those layers. 2 Link to comment Share on other sites More sharing options...
Jeffrey P Posted March 28, 2021 Share Posted March 28, 2021 40 minutes ago, Arwyn said: Central Montgomery County is ichnite (tracks and footprints) fossil paradise (if you now where to look). Here are some more, (all collected this year 2021) in the Perkiomen creek basin between Green Lane and Aracola. The fossil bearing strata are red bed mudstones and v. fine grain sandstones. Here's the geology and lithography for fellow fossil wonks: Upper Triassic, Norian Period (~210 million years) Strata: Graters member of the Newark Supergroup, within the Passaic formation overlying the Lockatong formation. These mudstones are commonly associated with ripple marks and the desiccation cracks of drying silt banks. Paleoenvironment: Revueltain Tetrapod fauna, found in Pangean lake basin, lake margins, or alluvial mud flats. Most commonly found tetrapod ichnites include Rhynchosauroids, Therapod grallators, and Atreipus (or related Ornithischian) Most tracks range in size from that of a chicken peep to an adult crocodile. Fossil producing beds are restricted to a few distinct stata layers and can be challenging to locate--but are abundant in those layers. Very nice tracks! Congratulations and thanks for sharing them. Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 28, 2021 Share Posted March 28, 2021 Very cool. Thanks for posting these. I enjoy seeing Triassic material from PA. Tim - VETERAN SHALE SPLITTER VFOTM - APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
sTamprockcoin Posted March 28, 2021 Share Posted March 28, 2021 Very Cool! I grew up in East Greenville. I saw things like what you posted but never picked them up . I saw the fossil tracks at the Limerick Nuclear Generating Station and dreamed of finding my own. When my parents moved away they dumped 5 Banana Boxes of fossil in the trash while I was at college. My only run in with the law in High School was getting chased out of the Hanes & Kibblehouse Quarry on the back road that ran up the hill from the base of the Green Lane Dam. “Beautiful is what we see. More beautiful is what we understand. Most beautiful is what we do not comprehend.” N. Steno Link to comment Share on other sites More sharing options...
Miocene_Mason Posted March 29, 2021 Share Posted March 29, 2021 16 hours ago, Arwyn said: Central Montgomery County Thought you meant Montgomery county MD for a hot second, was wondering what part of the geological map I missed! “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Nimravis Posted March 29, 2021 Share Posted March 29, 2021 Great finds, I love trackways. Link to comment Share on other sites More sharing options...
Arwyn Posted March 29, 2021 Share Posted March 29, 2021 Unfortunately the descriptive names of each fossil image did not carry over when I posted the pics---a little extra info always makes photo more interesting and sensible. One of the pics was of a presumed archosaur bone fragment (much less common than ichnite impressions). Bone fragments from ichnotype fossils are hard to identify in any case, so I just presumed it to be a fragment of an unidentifiable archosaur. But a strikingly similiar looking fossil from Silesia Poland, dating to the upper Carboniferous, had me wondering if it might be a Nautaloid, (some genera survived the Permian extinction) so the area might have been beach front, brackish, tidal marshland. Another photo hints at an archosaur with webbed footing. Most of the larger imprints are tridactyl, usually with claw markings on one or more of the digits. I think this impression was made by a phytosaur (a more unusual find). This group of archosaurs where ancestral to the crocodilians. Link to comment Share on other sites More sharing options...
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