†family Micrasteridae Lambert 1920 (heart urchin)

Echinoidea - Spatangoida - Micrasteridae

Alternative spelling: Micrasterinae

Full reference: J. Lambert. 1920. Etude sur quelques formes primitives de Spatangidés. Bulletin de la Société des Sciences Historiques et Naturelles de l’Yonne 73:1-41

Parent taxon: Micrasterina according to A. Kroh and A. B. Smith 2010

See also Fischer 1966

Sister taxa: Aeropsidae, Ovulasteridae, Plesiasteridae

Subtaxa: Brissopneustes Cyclasterinae Isopneustes Micraster Ovulaster

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Ecology: slow-moving shallow infaunal deposit feeder-detritivore

Distribution:

• Paleocene of Austria (2 collections), Denmark (1), Egypt (1), France (1), Spain (1)

• Cretaceous of Antarctica (1), Austria (3), Belgium (2), the Czech Republic (1), Egypt (2), France (11), Germany (40), Poland (1), Serbia and Montenegro (1), Spain (61), Tunisia (2), Turkmenistan (10), the United Kingdom (4), United States (15: Arkansas, Mississippi, Texas)

Total: 160 collections including 194 occurrences

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