21169 - Top Rare Anomalocaridid Aegirocassis benmoulai filter feeding appendage Ordovician Coloborhynchus Errachidia province

Errachidia province

In the Cretaceous part we can add Mosasaurs

Then we leave a link to an interesting reading on the understanding of the paleoecology of these interesting ammonites:

Striatolamia macrota: Fossilworks (Paleobiology Database)

in Morocco

21169 - Top Rare Anomalocaridid Aegirocassis benmoulai filter feeding appendage Ordovician Coloborhynchus Errachidia provinceTop rare filter feeding appendage of the anomalocaridid Aegirocassis benmoulai Aegirocassis is an extinct genus of anomalocarid arthropod belonging to the family Hurdiidae that lived 480 million years ago during the early Ordovician. It is known by a single species, Aegirocassis benmoulai. A fossil of A. benmoulai from the Fezouata biota, Morocco was discovered by and named after Mohamed Ben Moula, a fossil collector who recognized its rare