Some Ammonites Ate Plankton

Very cool new research on feeding in ancient ammonites! (Thanks to R. Olley for the link.) Ammonites, though not the direct ancestors of modern-day cephalopods, are their ancient cousins--and they were the most successful cephalopods of all time, in terms of diversity and sheer abundance. Ammonites from Ernst Haeckel's 1904 Kunstformen der Natur (Artforms of Nature). read more

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