Ammonight Posted January 18, 2018 Share Posted January 18, 2018 Help needed to identify these ammonites and shark teeth. Thanks. "The first fossil you find will always have a special place in your heart. You will hold it dear to you, as it is the beginning of a pathway of adventure and discovery." - Nathan Tan @Ammonight Link to comment Share on other sites More sharing options...
TXV24 Posted January 18, 2018 Share Posted January 18, 2018 I don't know about the ammonite but the shark tooth looks like it might be Cretolamna, a genus of mackerel shark that existed from the lower Cretaceous to early Eocene. Link to comment Share on other sites More sharing options...
FossilDAWG Posted January 18, 2018 Share Posted January 18, 2018 The first ammonite is a Douvilleiceras, likely Douvilleiceras mammilatum and certainly from Madagascar. The second ammonite cannot be identified; cross sections provide no diagnostic characters, and the outer surface has been ground down so far that all diagnostic features have been removed. Don 3 Link to comment Share on other sites More sharing options...
doushantuo Posted January 18, 2018 Share Posted January 18, 2018 2 Link to comment Share on other sites More sharing options...
Miocene_Mason Posted January 18, 2018 Share Posted January 18, 2018 By the way, cretolamna is widely thought to be an ancestor to megalodon, so I’m a way you hav the megs Great granddaddy (though there are a few more greats in between) 1 “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Anomotodon Posted January 18, 2018 Share Posted January 18, 2018 Shark tooth is Cretalamna maroccana from the Maastrichthian (latest Cretaceous) of Ouled Abdoun, Morocco. 1 The Tooth Fairy Link to comment Share on other sites More sharing options...
Ludwigia Posted January 18, 2018 Share Posted January 18, 2018 10 hours ago, FossilDAWG said: The first ammonite is a Douvilleiceras, likely Douvilleiceras mammilatum and certainly from Madagascar. The second ammonite cannot be identified; cross sections provide no diagnostic characters, and the outer surface has been ground down so far that all diagnostic features have been removed. Don I'll second that. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Aurelius Posted January 19, 2018 Share Posted January 19, 2018 The second ammonite could probably be identified from the sutures. I suspect it is Desmoceras. 1 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted January 23, 2018 Share Posted January 23, 2018 Yes, probably Desmoceras also from Madagascar. See 1 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
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