erose Posted July 24, 2018 Share Posted July 24, 2018 A few years back I was collecting in the Lower Member of the Glen Rose Formation. That's lower Albian in age. The sediments are shallow marine limestones and clays. Shark and other types of fish teeth are not common but do show up. I also have various bits of turtle bone. Attached are two pictures showing some of the more common teeth which I have references for and will be able to identify with no problem. With them is a small vertebra and that is what I want some help with. I look forward to your responses. 2 Link to comment Share on other sites More sharing options...
erose Posted July 28, 2018 Author Share Posted July 28, 2018 Gee, lots of views but otherwise crickets... Spent some time in Fruitbat’s PDF library and found my answer: turtle. I have plenty of other turtle scraps from another location at the same level so not surprising. Link to comment Share on other sites More sharing options...
ynot Posted July 28, 2018 Share Posted July 28, 2018 Got no idea about the vert. Maybe pictures from different angles would help get some more responses. Like the ptychodus teeth. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
erose Posted July 28, 2018 Author Share Posted July 28, 2018 8 hours ago, ynot said: Got no idea about the vert. Maybe pictures from different angles would help get some more responses. Like the ptychodus teeth. Fairly certain now the bone is from a turtle. Plenty of other turtle material from the same member nearby. The jaw plate is from a bonyfish, a Pycnodontid, not Ptychodus. Ptychodus come later in younger strata and are sharks. I believe it is Paramicrodon estesi Thurmond, 1974. The other tooth is tentatively identified as ?Lepisosteus sp. (alternate ID: Pachyamia sp.) 1 Link to comment Share on other sites More sharing options...
Heteromorph Posted July 28, 2018 Share Posted July 28, 2018 Somehow I missed this post. Apparently a lot of people did. Great fossils! I always like to see Texas lower K vertebrate material, since it is much less common than Texas upper K vertebrate material. If you have any more I would love to see it. Link to comment Share on other sites More sharing options...
jpc Posted July 29, 2018 Share Posted July 29, 2018 is this stuff marine or freshwater, or brackish? Link to comment Share on other sites More sharing options...
JohnJ Posted July 29, 2018 Share Posted July 29, 2018 Marine. 1 The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
jpc Posted July 29, 2018 Share Posted July 29, 2018 marine would rule out Lepisosteus, would it not? Link to comment Share on other sites More sharing options...
erose Posted July 29, 2018 Author Share Posted July 29, 2018 7 hours ago, jpc said: marine would rule out Lepisosteus, would it not? Probably. Need more references for Pachyamia which is known from younger upper Albian strata in Texas. Link to comment Share on other sites More sharing options...
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