Ancient seas were heavily armed. Historically, tens of thousands...

Ancient seas were heavily armed. Historically, tens of thousands…

Ammonite fossil, Dichotomosphinctes sp. Madagascar, Upper Jurassic in our Tentacles special exhibition. Ammonites are an extinct group of cephalopods


Ammonite fossils from Arizona at an Aquarium staffer’s desk.


‘Night of the Ammonites’, © Ray Troll, 2000 — on display in our Tentacles exhibition.

Ancient seas were heavily armed. Historically, tens of thousands of shelled cephalopod species dominated the ocean landscape, before losing out to sleeker, more efficient competitors and to drastic oceanographic changes. So for Fossil Day, the fifth day of Cephalopod Awareness Days, let’s shellebrate those species that came before us that now rest in petrification.



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