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Hi, Found something resembling an egg in a field. The area is Jurassic inferior/Triassic. It's not the best pictures but if you aren't sure i can take more in the morning. Can you identify it for me?

Found a messy chirotherium footprint but has skin impression with it.

I found this rock when i went to an old triassic quarry where footprints have been found. did not find any footprints, found some little hollow molds of shrimp like creatures (malocostraca- phyllocarids?) ( orange is the impression of the hollow) and a couple of these cow pat shaped rocks. Is it just geological?

One summer, tons of sand and rock and twelve pairs of gloves later. Should have just moved the house to the fossils.

Been mostly clearing out sand but did find a nice rock yesterday. Don’t know what the splayed toe print is.

I enjoyed a productive weekend hunting petrified wood in the Triassic age, approximately 210 mya, Newark Supergroup of Pennsylvania. The first 2 photos show a single specimen's 2 sides, illustrating profuse checking in the wood, and a likely rotten dead limb knot at top. Specimen weighs 19 pounds.

Hi. I was wondering if anyone could help me narrow down the identification of this phytosaur tooth. Is it possible to determine the genus or species from just a tooth? I think Redondasaurus may be a potential match, but it looks like there are a few archosauriforms in the Redonda formation. Thanks for any help. Phytosaur Tooth Triassic, Norian Redonda Formation Quay County, New Mexico CH: 32 mm CBW: 11 mm CBL: 12 mm Distal: 3 serrations/mm Mesial: 3.5 serrations/mm

An interesting paper on the proto-mammalian Lystrosaurus and tusk measurements that might indicate seasonal hibernation/torpor. https://www.nature.com/articles/s42003-020-01207-6

A new paper is out online that you'll find shocking: Müller RT, Garcia MS. 2020. A paraphyletic ‘Silesauridae’ as an alternative hypothesis for the initial radiation of ornithischian dinosaurs. Biol. Lett.16:20200417. http://dx.doi.org/10.1098/rsbl.2020.0417 I remember that several Late Triassic animals erected upon teeth (Crosbysaurus, Galtonia, Krzyzanowskisaurus, Lucianosaurus, Pekinosaurus, Protecovasaurus, Revueltosaurus, and Tecovasaurus) were once classified within Ornithischia because the type teeth of those taxa are similar to those of ornithischians (some early sauropodomorphs have leaf-shaped teeth, too), but Revueltosaurus was later reclassified as an extinct relative of alligators and crocodiles based on complete material, and Galtonia and Pekinosaurus were also recognized as suchians closely related to Revueltosaurus, meaning that other putative Triassic ornithischian taxa from the American Southwest were placed in Archosauriformes incertae sedis by Parker et al. (2005) and Irmis et al. (2007) due to the presence of triangular leaf-shaped teeth being convergent among ornithischian dinosaurs and some non-dinosaurian clades. The hyper-sparse record of Triassic Ornithischia left people scratching their heads to explain the paucity of Triassic ornithischian fossils, with some speculating that ornithischians did not diversify until the Early Jurassic; the fact that Pisanosaurus combines some craniodental traits of Ornithischia more advanced than those of Lesothosaurus and the postcranial traits of basal dinosauriforms complicated matters further, because this mosaic of morphological features threatened the status of Pisanosaurus as the oldest ornithischian. Agnolin and Rozadilla (2018) tidied up matters by concluding that Pisanosaurus is a silesaurid that evolves craniodental features convergent with those of advanced ornithischians. The new paper by Muller and Garcia (2020) has a pretty novel hypothesis to explain the virtually non-existence of Ornithischia in Triassic deposits. It shockingly recovers Silesauridae as paraphyletic with respect to traditional Ornithischia (containing Genasauria and Eocursor), suggesting that the earliest relatives of Ornithischia evolved a purely faunivorous diet, given that Asilisaurus from Tanzania has sub-triangular crowns and a constricted root and dentaries with a beak-like anterior tip. For instance, Lewisuchus is recovered a more primitive than Soumyasaurus and Asilisaurus. Since Pisanosaurus has a mosaic of ornithischian-like features and postcranial traits usually seen in non-dinosaurian dinosauromorphs, it may be surmised that the earliest dinosaurs had some postcranial features similar to those of lagerpetids and Lagosuchus. Of interesting note is the fact that Technosaurus (named for Texas Tech University where the holotype is stored) was once considered a 'fabrosaurid' ornitischian before it was classified as a silesaurid, so the placement of all silesaurs as closely related to Ornithischia and recovery of Pisanosaurus as sister to Ornithischia means that the peculiar morphology of Pisanosaurus renders silesaurs more closely related to ornithischians. Randall B. Irmis, William G. Parker, Sterling J. Nesbitt & Jun Liu (2007) Early ornithischian dinosaurs: the Triassic record. Historical Biology, 19:1, 3-22, DOI: 10.1080/08912960600719988 Parker, W. G., Irmis, R. B., Nesbitt, S. J., Martz, J. W., & Browne, L. S. (2005). The Late Triassic pseudosuchian Revueltosaurus callenderi and its implications for the diversity of early ornithischian dinosaurs. Proceedings. Biological sciences, 272(1566): 963–969. https://doi.org/10.1098/rspb.2004.3047

Hello, Ive been wracking my brains over this and I can't find anything close on Google but it really looks familiar. This is from what I think is early Triassic Thaynes group near Minnetonka Cave in St. Charles Creek/Canyon (from a paper I couldn't download so I lost it) (west shore of Bear Lake) but there is Ordovician St. Charles Fm immediately to the west. The geologic maps I can find don't even show the Triassic but I collected the ammonite locality south of Liberty so I know it's at least in the area. Anyway I collected this little bugger at the site and I'm stumped (honestly the only fossils I know well are Eocene-Miocene marine in OR & WA). The bivalve (brachiopod?) is from the same site. I got a lesson in how not to do acid removal of limestone matrix so it's a little over-soaked lol.

Found a nice set of front and rear, left and right chirotherium prints. Couple pictures of what the site looks like - I move one and hit two more. Currently have over 100 rocks with footprints.

The footprint in the lower right is chirotherium. The straight line looks to be a tail drag. The squiggly lines are mud cracks I assume.

me and Assistant Curator of Paleontology Dr. Adam Pritchard highlights a recent field trip he and several colleagues took to Ashland, Virginia, where they discovered multiple small reptile fossils from the Triassic Period!

The first picture is a Rotodactylus that has all five toes. The little one at the bottom center is sort of oval shaped and sticks out an angle. Second picture I have no idea. The print on the far right center looks like it has stubby little toes.

We Finally Know How This Ancient Reptile Lived With Such an Absurdly Long Neck By Mike McRae, Field Museum press release link Aquatic Habits and Niche Partitioning in the Extraordinarily Long-Necked TriassicReptile Tanystropheus Spiekman et al., Aquatic Habits and Niche Partitioning  in the Extraordinarily Long-Necked Triassic Reptile, Tanystropheus, Current Biology (2020) PDF Yours, Paul H.

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.

Found this rock with some nicely defined footprints. The first two pictures are of the same print - has a great impression of the ball of the foot.

This rock has a nice variety of prints with varying number of toes. The bottom center has two toes, the left has three. The upper right is a very distinct print but I can’t tell if there is is a fourth toe to the right of the three long ones.

I found 4 nice good-size specimens of petrified wood, from the Newark Basin Triassic sedimentary deposits, in southeastern Pennsylvania. Photo shows that all pieces are a light chocolate brown color. There is a quarter coin for scale. These are from the same location where I previously found two large specimens, which I posted a few years ago. This material seems to be rather scarce.

Here are some of the various sizes of the chirotherium footprints.

Here are some closeups with scale (inches). It looks to me like there are some two toe and some three toe prints u

The first picture looks like a different print than what I’ve found before - the toes are much wider spread than the chirotherium and there seems to be only three toes, not four. The second picture shows an interesting pattern in the rock. The third has front and rear prints.

Spent most of the day dragging out garbage rocks but found this one. Can’t tell if it’s a smeared Chirotherium or some thing else. All you Lady Gaga Little Monsters, paws up!

I visted Aust Cliff on the River Severn, Gloucestershire UK back in Feburary and managed to find a large block of the 'Rhaetic Bone Bed' . Lots of bone fragments, fish teeth, even a shark fin spine! But my best finds are a paddle bone and large tooth. (Still got plenty more rock pieces to break open and search for more, so a long term project...) However i would like to I.D this Ichthyosaur in particular. Does anyone know about the early ichthyosaurs from the late Triassic? Age: 208 - 201mya (Late Triassic: Rhaetian) - Aust Cliff Paddle bone - humerus? Tooth (broken off tip sadly):

The rock I recovered today has a new type of footprint I haven’t seen before (first picture) as well as a couple of nice chirotherium.