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Hemipneustes

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(Redirected from Hemipneustes delettrei) Extinct genus of sea urchins

Hemipneustes
Temporal range: Maastrichtian PreꞒ O S D C P T J K Pg N
Fossil of Hemipneustus oculatus from Belgium, on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Order: Holasteroida
Family: Holasteridae
Genus: Hemipneustes
L. Agassiz, 1836

Hemipneustes is an extinct genus of sea urchins belonging to the family Holasteridae.

These semi-infaunal detritivores lived during the Upper Cretaceous period, from 70.6 to 66.043 million years ago. Fossils of this genus have been found in the sediments of Netherlands, Belgium, Bulgaria, India, Iran, Oman and Spain.

Description

Hemipneustes is a quite large sea urchin with a high-domed profile and a well-defined anterior sulcus.

List of species

References

  1. ^ The Paleobiology Database
  2. Natural History Museum
Taxon identifiers
Hemipneustes


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