Exceptionally Preserved Shark Fossils from Mexico Elucidate the Long-Standing Enigma of the Cretaceous Elasmobranch Ptychodus
Proceedings of the Royal Society B Biological Sciences（2024）
关键词
Chondrichthyes,Lamniformes,Ptychodontidae,ecomorphology,Late Cretaceous,Vallecillo fossil Lagerst & auml,tte
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