Marsupites

Marsupites is an extinct genus of crinoids from the Santonian stage of the Late Cretaceous.[1]

Marsupites
Temporal range: Santonian
~86.3–83.6 Ma
↓
Marsupites testudinarius fossil
Scientific classification
Kingdom:
Animalia
Phylum:
Echinodermata
Subphylum:
Crinozoa
Class:
Crinoidea
Order:
Uintacrinida
Genus:
Marsupites
Species
  • M. americanus Springer 1911
  • M. lamberti Besairie 1936
  • M. testudinarius Schlotheim 1820

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 Late Cretaceous, 83.6 ± 0.2 million years ago.

Distribution

Fossils of the genus have been found in:[1]

References
  1. Marsupites at Fossilworks.org
  2. Lach & Salamon, 2016
  3. Haggart & Graham, 2018

Bibliography
  • Haggart, J. W., and R. Graham. 2018. The crinoid Marsupites in the Upper Cretaceous Nanaimo Group, British Columbia: resolution of the Santonian-Campanian boundary in the North Pacific Province. Cretaceous Research 87. 277–295.
  • Lach, R., and M. A. Salamon. 2016. Late Cretaceous crinoids (Echinodermata) from the southwestern margin of the Holy Cross Mts. (southern Poland) and phylogenetic relationships among bourgueticrinids. Palaeontologische Zeitschrift 90. 503–520.
  • Fossils (Smithsonian Handbooks) by David Ward (Page 173)


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