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

Marsupites is an extinct genus of crinoids from the Cretaceous.

Biostratigraphic significance[edit]

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.


  • Fossils (Smithsonian Handbooks) by David Ward (Page 173)