Pseudoaspidoceras

Pseudoaspidoceras
Temporal range: Cretaceous
Pseudoaspidoceras conciliatum, Upper Cretaceous (Turonian) from Madagascar
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Family: Acanthoceratidae
Genus: Pseudoaspidoceras
Dollfus 1904

Pseudoaspidoceras is an extinct cephalopod genus belonging to the subclass Ammonoidea and family Acanthoceratidae.

These cephalopods lived during the Turonian stage of the Upper Cretaceous, between 93.5 ± 0.8 Ma and 89.3 ± 1 Ma (million years ago). Their shells reached a diameter of 90-120 mm and had ornate ribs.

References