-AnThOnY- Posted September 13, 2016 Share Posted September 13, 2016 Whole ammonites are hard to come by here in Mississippi but I have managed to get a few over the last 5 years or so, and have recently started tracking down more rare species, even though they are only fragmentary. All of these posted are from the Prairie Bluff Chalk except for one from the Chiwapa Limestone (Ripley Fm) which will be noted. Anyway, hope y'all enjoy! Belemnitella americana: Discoscaphites gulosus/conradi: Pachydiscus maconensis: Pachydiscus egertoni: Glyptoxoceras: Pseudophyllites indra: Unknown heteromorph (baculite maybe?): Second image is cross section. Pyritized ammonites (have to assume Discoscaphites sp?), with a potential heteromorph (maybe gastropod): Sphenodiscus lobatus: 1st Prairie Bluff, second Chiwapa Limestone. I may try to repair the first one as its the most complete one that I have found from the PB, and its easily 90+% complete Eutrephoceras: Paleocene Eutrephoceras from a couple feet above the KT boundary in Starkville, MS 2 Link to comment Share on other sites More sharing options...
PFOOLEY Posted September 13, 2016 Share Posted September 13, 2016 You have done well. This is a heck of a collection! Prairie Bluff is quite an interesting formation...at least on paper for me. "I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?" ~Aldo Leopold (1887-1948) New Mexico Museum of Natural History Bulletins Link to comment Share on other sites More sharing options...
doushantuo Posted September 13, 2016 Share Posted September 13, 2016 VERRRRRRRRYYY neat collection. Link to comment Share on other sites More sharing options...
FossilDAWG Posted September 13, 2016 Share Posted September 13, 2016 Very nice! Some of those specimens are in exceptional condition, and you have a nice assortment of the rarer species as well. Have you tackled the Baculites species yet? There are a few species in the Prairie Bluff, but most bits are hard to ID. I did find one nice Trachybaculites as well. However I only have fragmentary examples of the Discoscaphites and Hoploscaphites, nothing like your drool-worth beauties. Don 1 Link to comment Share on other sites More sharing options...
-AnThOnY- Posted September 13, 2016 Author Share Posted September 13, 2016 19 hours ago, PFOOLEY said: You have done well. This is a heck of a collection! Prairie Bluff is quite an interesting formation...at least on paper for me. Still aiming for some complete Pachydiscus specimens! Slowly but surely getting there. I can't say many negative things about the Prairie Bluff, its very high on my list. It probably makes up easily over 50% of my Mississippi species list. Ill get around to doing a post about gastropods at some point! 17 hours ago, doushantuo said: VERRRRRRRRYYY neat collection. Thanks! 4 hours ago, FossilDAWG said: Very nice! Some of those specimens are in exceptional condition, and you have a nice assortment of the rarer species as well. Have you tackled the Baculites species yet? There are a few species in the Prairie Bluff, but most bits are hard to ID. I did find one nice Trachybaculites as well. However I only have fragmentary examples of the Discoscaphites and Hoploscaphites, nothing like your drool-worth beauties. Don I have yet to try and decode the Baculites. I have held onto a ton of them but have only labeled as far as Baculites sp?. Most of them don't show sutures well enough to ID 100% and I'm not sure how diagnostic the ribbing is. I just need to get some complete examples of the odder ammonites! 1 Link to comment Share on other sites More sharing options...
vonfatman Posted September 30, 2016 Share Posted September 30, 2016 Wow. That is very impressive. You have had to work very hard to accumulate so many nice examples. Congratulations. Bob Link to comment Share on other sites More sharing options...
Ludwigia Posted September 30, 2016 Share Posted September 30, 2016 Perseverance obviously pays off. Nice collection. Looks like above all things nautiloids like Mississippi. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
dirtdauber Posted September 30, 2016 Share Posted September 30, 2016 Nice collection, Anthony! I have a number of bits and pieces and a few almost whole ammonites from the Ripley and Prairie Bluff in Alabama, but haven't tried to ID them yet. Your posting should help me along with that. Thanks. -- George Link to comment Share on other sites More sharing options...
MikeR Posted October 1, 2016 Share Posted October 1, 2016 Very impressive indeed! Assuming that the Eutrophoceras are redeposited in the Clayton? "A problem solved is a problem caused"--Karl Pilkington "I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain Link to comment Share on other sites More sharing options...
Plax Posted October 4, 2016 Share Posted October 4, 2016 It almost looks like the Paleocene one has wavy sutures. Could be Hercoglossa? (or my poor eyes). We have Aturia and Eutrephoceras in our Eocene but haven't found either in our Paleocene here in NC. Link to comment Share on other sites More sharing options...
FossilDAWG Posted October 4, 2016 Share Posted October 4, 2016 There is a Paleocene species of Eutrephoceras that occurs in the Beaufort Formation (Paleocene) in North Carolina: BAILEY, R. H. 1976. Eutrephoceras (Nautiloidea) from the Paleocene Beaufort Formation of North Carolina. Tulane Studies in Geology and Paleontology, 12(4):235-242. Don 2 Link to comment Share on other sites More sharing options...
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