Term

Ammonites

Extinct sea creatures related to octopuses and squid, with spiral shells. Ammonites died out about 66 million years ago, along with the dinosaurs.

A Life on Our Planet: My Witness Statement and a Vision for the Future, David Attenborough

Explained in

• A Life on Our Planet: My Witness Statement and a Vision for the Future, David Attenborough
• The Sixth Extinction: An Unnatural History, Elizabeth Kolbert

  Extinct sea mollusks with spiral shells, relatives of squid and octopuses. They died out at the end of the Cretaceous period.

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