Suborder Micrasterina Fischer 1966 (heart urchin)

Echinoidea - Spatangoida

Full reference: A. G. Fischer. 1966. Spatangoids. Treatise on Invertebrate Paleontology, Part U. Echinodermata. Geological Society of America and University of Kansas Press, Boulder and Lawrence 3(2):U543-U628

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

See also Fischer 1966

Sister taxa: Allotoxaster, Amoraster, Apoxypetalum, Archaeopneustes, Asterostomatina, Barnumia, Brissidina, Brissoides, Cagaster, Caribbaster, Cestobrissus, Cottreaucorys, Echinocoridae, Enallaster, Enichaster, Epiaster, Gonzalezaster, Gymnopatagus, Hemiasteridae, Hemiasterina, Homoeopetalus, Hypselaster, Kertaster, Leymeriaster, Mazzettia, Mortensenaster, Mundaster, Murraypneustes, Neoproraster, Nipponaster, Nudobrissus, Orthaster, Palaeostomidae, Paleopneustina, Paraheteraster, Peraspatangus, Periaster, Peroniaster, Pictaviechinus, Pliotoxaster, Pseudogibbaster, Pseudolinthia, Pseudowashitaster, Pusillaster, Royasendia, Schizobrissus, Somalechinus, Somaliasteridae, Spatagobrissus, Tessieria, Toxasteridae, Toxasterina, Wuarnia

Subtaxa: Aeropsidae Micrasteridae Ovulasteridae Plesiasteridae

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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 (2)

• 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 (8: Arkansas, Mississippi, Texas)

Total: 154 collections including 188 occurrences

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