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Showing results for tags 'demopolis chalk'.
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Some mosasaur teeth; serrated or not?
Thomas.Dodson posted a topic in Fossil IDDuring a recent trip back to W.M Browning Cretaceous Fossil Park in Northern Mississippi (Demopolis Formation, Late Campanian) I collected another mosasaur tooth. While incomplete the condition is still very nice. I am aware of the difficulties in identifying isolated mosasaur teeth but have been attempting it nevertheless. If nothing else I've learned more along the way. Two questions for this tooth. The first is the general question if anyone has an idea about the identification. The second pertains to what qualifies as serrations on mosasaur teeth. There are "crenulations" present on this t
Undergrad Paleo class field trip finds
lakoneko posted a topic in Fossil Hunting TripsI was recently reorganizing my fossil collection and thought I would share some pieces I collected during Paleontology field trips in undergrad at Alabama. I'm glad I took thorough notes at the time! The demopolis chalk is a popular formation for finding Exogyra/ostrea/pycnodonte shells and shark teeth. We visited a site in Tupelo, MS many times for surface collecting. Some of the cool pieces I found were many fragments of a mosasaur jaw (top pic, top 2 slots), a Squalicorax kaupi tooth, a scyliorhinus(?) tooth, bony fish vertebrae, and bony fish teeth. I was told the dark fossils
New Cetaceous sea turtle fossil found in Alabama (open access)
Oxytropidoceras posted a topic in Fossil NewsAncient sea turtle fossil found in Alabama named new genus, species AlabamaCom, January 7, 2019 https://www.al.com/news/birmingham/2020/01/ancient-sea-turtle-fossil-found-in-alabama-named-new-genus-species.html Gentry, A.D., Ebersole, J.A. and Kiernan, C.R., 2019. Asmodochelys parhami, a new fossil marine turtle from the Campanian Demopolis Chalk and the stratigraphic congruence of competing marine turtle phylogenies. Royal Society Open Science, 6(12), p.191950. https://royalsocietypublishing.org/doi/abs/10.1098/rsos.191950 Yours,
Ann S posted a topic in Fossil IDHere's one more photo from the Sumter County field trip. This specimen was still in the chalk, perpendicular to the plane of the bed. Sorry I didn't snap an in situ photo. If this one is man-made, you can put the dunce cap sticker by my name for a week