JamieLynn Posted July 10, 2021 Share Posted July 10, 2021 Howdy! A few ammonites that are eluding me as to ID. Anyone with more knowledge of them, I would appreciate some confirmation or negation of my attempts! @erose @JohnJ @Uncle Siphuncle From Waco Pit Del Rio Formation. Thanks!! Possibly Tetragonites brazoensis? Or Adkinsia ? Second one Mantelliceras wacoense? Or maybe Paracycloceras? Not a great pic, but a little bit of a close up on the suture of this one: 1 www.fossil-quest.com Link to comment Share on other sites More sharing options...
erose Posted July 11, 2021 Share Posted July 11, 2021 I don't have my ammonite books in front of me but I can send you a paper by Mancini, 1977 and a faunal list I transcribed from it. It is a list of known species from the formation. Still a lot of species to choose from but helpful none the less. And those are nice specimens. Did you take these pics with the new camera scope? 1916751617_mancini19771.pdf Grayson Fauna.pdf 1 Link to comment Share on other sites More sharing options...
JamieLynn Posted July 11, 2021 Author Share Posted July 11, 2021 @erose Thanks, I'll look over those. And yeah, with my new micro camera. So Waco PIt is Grayson? I thought it was Del Rio. 1 www.fossil-quest.com Link to comment Share on other sites More sharing options...
erose Posted July 11, 2021 Share Posted July 11, 2021 7 hours ago, JamieLynn said: @erose Thanks, I'll look over those. And yeah, with my new micro camera. So Waco PIt is Grayson? I thought it was Del Rio. Same thing for this purpose. 1 1 Link to comment Share on other sites More sharing options...
DPS Ammonite Posted July 11, 2021 Share Posted July 11, 2021 See Geolex. Del Rio is roughly equivalent to the Grayson in whole or part. The name Grayson came about after some workers thought the Del Rio name was abandoned. https://ngmdb.usgs.gov/Geolex/UnitRefs/DelRioRefs_7889.html 2 My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
erose Posted July 11, 2021 Share Posted July 11, 2021 Oh, and definitely this paper... origin-of-the-grayson-micromorph-fauna.pdf 1 1 Link to comment Share on other sites More sharing options...
JamieLynn Posted July 11, 2021 Author Share Posted July 11, 2021 thanks y'all...looks like i have some reading ahead of me. Perhaps I can load them on my kindle and read them at the beach....just a little light reading! hahahah!! I wish I were going to the beach..... www.fossil-quest.com Link to comment Share on other sites More sharing options...
JohnJ Posted July 12, 2021 Share Posted July 12, 2021 ...but, you do have one of prettiest rivers in Texas! 1 The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
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