The fossil shark Ptychodus was first identified 190 years ago, but in the intervening centuries of paleontological inquiry, a comprehensive look at the ancient fish has been hard to come by. Until now. In a paper published last week in the Proceedings of the Royal Society B, a team of researchers describe an exceptionally well-preserved Ptychodus , fossilized from its nose to the tip of its tail.
But the reality may be more complicated, as Tyler Greenfield, a paleontologist at the University of Wyoming, explained to Gizmodo. Instead of being a mackerel shark, Greenfield suggests Ptychodus belongs to an entirely different category.
Lamniformes Porbeagle Ptychocorax Romain Vullo Tyler Greenfield Anacoracidae Aquilolamna Mooreville Chalk Ptychodus Squalicorax Gizmodo
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