Marsupites

Marsupites
Temporal range: Cretaceous
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Subphylum: Crinozoa
Class: Crinoidea
Order: Uintacrinida
Genus: Marsupites

Marsupites is an extinct genus of crinoid from the Cretaceous.

Biostratigraphic significance

The International Commission on Stratigraphy (ICS) has assigned the extinction of Marsupites testudinarius as the defining biological marker for the start of the Campanian Stage of the Cretaceous, 83.6 ± 0.2 million years ago.

Sources

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