Tertiary cephalopods, or where did all the ammonites go?
Dr Neale Monks (UK) Most geologists will be familiar with Palaeozoic and Mesozoic cephalopods, but their Tertiary counterparts are much less well known. It isn’t that Tertiary cephalopods are rare as such – at some localities they can be quite common – but their diversity is extremely low. For example, … Read More