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Showing results for tags 'late cretaceous'.
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Hey all, Had the honor of being taken fossil hunting with Pfooley recently. Found my first ammonites! I'd been wanting to find some for a long time. Was a great experience and I look forward to more trips soon. Checked out the famous "Windmill Site" first. The drive there was amazing in early morning. I busted open my first nodules... Poor quality picture of the Windmill Site finds. Nice variety in there. Far left is a large bivalve and there's a large gastropod on the far right. We moved on to find some other ammonites. My best find of the day was this large whole Spathites. Had a blast and can't stop thinking about the next time I'll find myself out there... Thanks again Mike!
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Is this a tooth of Richardoestesia isosceles? Scale marks on left side of tooth are in mm and on the right side are in 0.5 mm increments. Serration count ranges from about 6 to 8 per mm. What remains of the tooth is approximately 11 mm in length. Hell Creek Formation (Late Cretaceous: Maastrichtian), South Dakota.
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Any help on the identity and position of this small (scale bar = 1 mm) vertebra from the Hell Creek Formation (Late Cretaceous) of S. Dakota, would be greatly appreciated. It looks like much of the neural arch and processes are gone. The centrum is a bit more dorso-ventrally flattened as compared to the turtle vertebra I posted the other day, and the ventral side (?) of the centrum has sinuses unlike the turtle vert (perhaps due to wear / breakage?).
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Hi All, I am hoping someone might recognize this bone fragment. It is from the Hell Creek Formation (Late-Cretaceous) of South Dakota. It looks fishy to me but does not have the exterior texture of gar skull. The exterior is really "pocked", almost like small, conchoidal chips. If fish, maybe bowfin, paddlefish, or sturgeon skull fragment? Only other thought I had was maybe crocodilian or champsosaur skull fragment, but I am leaning fish. There might be enough structure on the interior surface for someone to recognize which bone. Top photo is the exterior surface, middle is interior surface, and bottom photo is close-up (under magnification) of the exterior surface. Scale is in cm / mm. Thanks for any help.
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Could someone help me with the identification and position of this vertebra. I was thinking it was procoelous and maybe crocodylomorph? Scale bar = 1mm.
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- hell creek formation
- late cretaceous
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Sorry for the barrage of Hell Creek posts, I finally have time to go through some of my summer collections. I am having a hard time with this mammal tooth (Hell Creek Formation, Late-Cretaceous, South Dakota). The occlusal surface is heavily worn. I was thinking perhaps Cimolodon? or Mesodma? Any help / suggestions would be greatly appreciated. Scale bar = 1 mm
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Hi all, This is a leaf from the Hell Creek Formation (Late-Cretaceous: Maastrichtian) of South Dakota. My best guess is Marmarthia sp. (Lauraceae). Maybe M. trivialis? Can anyone familiar with the Hell Creek Flora confirm or perhaps suggest alternatives?
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I found this near Cottonmouth creek, 8 miles south of Austin. Some material throughout the creek looks to be lithified beach sediment. The extinct volcano called " Pilot Knob" is said to have erupted roughly 80 million years ago. The rock is about 2.5" inches long.
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I was going through some matrix, from my last dinosaur dig trip, using a microscope to look for anything small. In that process I found something real small a micro. Its slightly larger than 1 mm. One of the smallest fossils I've ever found. Cephalic hook, dermal denticle or something else? Hell Creek Formation, South Dakota Any input would be appreciated. Sorry its the best picture I can take with my digital scope. Two images with a little different contrast. Thank you for looking.
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Student uncovers Alabama fossils likely from oldest ancestor of modern sea turtles, October 5, 2016 https://www.uab.edu/news/innovation/item/7649-uab-grad-student-uncovers-alabama-fossils-likely-from-oldest-ancestor-of-modern-sea-turtles http://phys.org/news/2016-10-student-uncovers-alabama-fossils-oldest.html https://www.sciencedaily.com/releases/2016/10/161003182513.htm Gentry, A. D., 2016, New material of the Late Cretaceous marine turtle Zangerl, 1953 and a phylogenetic reassessment of the 'toxochelyid'-grade taxa, Journal of Systematic Palaeontology DOI: 10.1080/14772019.2016.1217087 http://www.tandfonline.com/doi/abs/10.1080/14772019.2016.1217087 Yours, Paul H.
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Steven and his dad have been aggressively collecting a site that has produced high quality fish for me for the last 15 years. Their hard work is starting to pay off. Here's an Apsopelix sp. that I just finished prepping for them Before...
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Hello, can you help me ID these bivalve? They are from the Lance Fm in eastern WY (Late Cretaceous). I'm sorry the pictures are not pristine. They are old and I do not currently have the shells with me to take new ones. Also, does anyone have any idea whether I can determine if they are aragonitic or calcitic at this point? Thanks!
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A new paper describing a new oviraptorosaur from Canada is now available online: Gregory F. Funston and Philip J. Currie (2016). "A new caenagnathid (Dinosauria: Oviraptorosauria) from the Horseshoe Canyon Formation of Alberta, Canada, and a reevaluation of the relationships of Caenagnathidae". Journal of Vertebrate Paleontology. Online edition: e1160910. doi:10.1080/02724634.2016.1160910. The fact that Apatoraptor was first thought to be an ornithomimosaur when first discovered but eventually re-identified as belonging to a caenagnathid upon further preparation of the specimen reminds me of the instance where Epichirostenotes was first considered an ornithomimid when first reported in the literature but eventually re-assigned to Caenagnathidae when ROM 43250 was fully prepared. Because Apatoraptor and Epichirostenotes are distinct from one another, it turns out those who thought that Caenagnathus and Chirostenotes might still be distinct even if they belonged in the same family were correct, even though the diversity of Edmontonian-Lancian caenagnathids isn't as high as that of Judithian/Kirtlandian caenagnathids.
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Monster Amber Specimens Have Been Found!
Tennessees Pride posted a topic in General Fossil Discussion
On the evening of september 16th. 2013, right @ dark, Amber fossil resin was discovered for the first time ever in Henderson county,TN. This discovery was made by myself. On the afternoon of september 20th. 2013, i discovered a specimen of Amber that my wildest dreams had never imagined! Hahhaaa....yea!!! It snatched away the previous state record sized specimen from the late (& great!) Professor Bruce Wade, like it wasn't even there! His record specimen was about a inch and a half in diameter, and it stood for 99 years until i came along on that fateful day! It is an honor for my name and accomplishments to even be mentioned in the same paragraph as mr. Wade's.....here's to you Bruce!!! The sept.20th. specimen has rough demensions of about 4in×3in×2in thick., and a lovely red color. It's exact weight is 149.2 grams, or 5.263 oz. Needless to say, i went straight awol crazy after finding that!.......so......the story doesn't end here! No sir!.....was struck down w/ the worst case of "Amber-Fever" the world has ever seen! (still haven't been able to shake it off) so there i was hunting in the middle of the pouring rain on the afternoon of nov. 22 nd. 2013 when the magic happened again. Found the largest Amber specimen i've ever seen in my life. It's about the size of a hamburger. (Robble-Robble! ). So, barely 2 months after breaking the state record, & before it could even be documented.....i broke my own record......here's to you Bruce Wade! Rest in peace Brother! These discoveries of mine i have for the most part been relatively secretive about. Since finding the wonderful objects, i have began to actively work with a prestigious University and two intellectuals that it is truely an honor to meet. I must for present remain somewhat secretive about sites/locations/time periods/ stratigraphy/lithology......ect., ect. Because revealing that information will jeopardize their work, and i could never do that. If i like it or not,it is the way it has to be until all has been finished. This experience has taught me that patience is truely a virtue, good science doesn't happen overnight,but painfully takes an untold amount of months....but, it just has to be that way. But when all is finally completed, Henderson county and the great state of Tennessee can take pride in their true-blue "native son", and the wonderful things that lie right in their back yard. Praise YAHVEH!
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Hi all, a while ago (8th February) i went to this spot in Germany close to Aachen with my dad. But i hadn't had the time to take some pictures yet. Unfortunately i didn't take my camera with me so i sadly no insitu pictures. The top find of the day was a nice Hoploscaphites pungens which i didn't expect to find over there as i usually only find shells, belemnites or some Echinoid parts. But when i got home i discovered an additional three (partial) ammonites in a rock we took for no real reason. Which i'm now really happy about
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New hadrosaurid from Deep South
DD1991 posted a topic in Partners in Paleontology - Member Contributions to Science
A new paper regarding a new hadrosaurid from the eastern US is available online: Albert Prieto-Marquez, Gregory M. Erickson and Jun A. Ebersole (2016). "A primitive hadrosaurid from southeastern North America and the origin and early evolution of ‘duck-billed’ dinosaurs". Journal of Vertebrate Paleontology. Online edition: e1054495. doi:10.1080/02724634.2015.1054495. It's no surprise that we have been deciphering the evolution of hadrosauroids and hadrosaurids in North America during the late Turonian to Santonian interval, but the discovery of Eotrachodon provides new insights into the early evolution of hadrosaurids in North America by showing that hadrosaurids co-existed with non-hadrosaurid hadrosauroids in North America during the Santonian. However, the statement by Prieto-Marquez et al. regarding the geographical origin of Hadrosauridae should be taken with a grain of salt because Sebastian Dalman informed me of a soon-to-be-published tyrannosaur species from the Cenomanian of New Jersey and it's possible that a small number of Cenomanian-Turonian species from Asia currently classified as Hadrosauroidea incertae sedis could end up as basal hadrosaurids, in which case it may be clear that hadrosaurids in Laramidia made it to Appalachia during the Cenomanian before the Western Interior Seaway cut off Appalachia from Laramidia.- 20 replies
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So, I had this ammonite...I took it to a local rock shop to have thirds taken off of it. I went to pick it up and was blown away... ...AMAZING! (that's me, fistbumping myself for the thought of it. )...just wanted to share.
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From the album: Most of my collection
This Phragmacone was collected April 25th 2014 from a Late Cretaceous Maastrichtian formation. The Coon Creek formation. -
From the album: Most of my collection
This material was collected from a Late Cretaceous Maastrichtian, Coon Creek formation, on April 25th 2014. -
Here is a very large tooth i found about 2-3 weeks back. It was found in this state of decay, and even though it looks bad, i'm actually impressed that i was able to save and preserve as much of this specimen as i did. The tooth was practically falling to pieces when found, just geting it back to the lab was almost impossible, then trying to extract it from the ferrocrete matrix was right at hopeless!....i layered it with hardner as i cleaned some matrix away...slowly, alittle at a time...still, some was lost and this was simply the best that could be done to save what bit of the tooth i could. With that being said, i wouldn't be a bit suprised if it is in such a state that it can't now be identified! I'm hoping though that someone can give an i.d. This tooth may be ugly, but what i had to go through to get it, i'm very proud of it. i can only guess at how much was already missing by the time i found it....it seems to have been about a 1/2 inch in diameter (or a hair more) in cross section at the base originally. This tooth does compare favorably w/ another Mosasaur tooth i have, but i'd like the opinions of anyone else i could get please, cause i'm not certain what mouth it came out of. I will also attach an "in situ" of the tooth to show what a job i was in for. Thanks for anything you all may be able to tell me about it. It's Late Cretaceous, Campanian.
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From the album: Most of my collection
For a description, reference the first photo of this specimen combined with a scale. -
From the album: Most of my collection
The begining prep of the second state record specimen. For a description, see the first photo of this specimen combined with a scale. -
From the album: Most of my collection
A pic of the beginning prep of the second state record specimen. For a description, see the first photo of this material combined with a scale. -
From the album: Most of my collection
On the afternoon of November 22nd 2013, in the middle of the pouring rain, i found this huge Amber specimen in a Late Cretaceous formation. Location unspecified. This is the current unofficial Tennessee state record. It broke the previous Amber state record which was also set by myself barely two months before finding this specimen. It's the size of a hamburger! The first state record was set by the late mr. Bruce Wade and stood for 99 years. I have been told this specimen is in the top 10 largest Amber specimens to ever be found in America. -
From the album: Most of my collection
For a description of this specimen, reference the first photo of this specimen combined with a scale.
