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Schizaster Agassiz 1835 (heart urchin)

Echinoidea - Spatangoida - Schizasteridae

PaleoDB taxon number: 33481

Synonyms: Aplospatangus Lambert 1907 (no. 294095), Brachybrissus Pomel 1883 (no. 294094), Schizaster (Aplospatangus) Lambert 1907 (no. 394568)

Parent taxon: Schizasteridae according to D. Frassinetti and V. Covacevich 1999

Sister taxa: Abatus, Agassizia, Aguayoaster, Brisaster, Brisasterinae, Caribbaster, Diploporaster, Faorina, Hemifaorina, Hemigymnia, Kina, Lambertona, Linthia, Moira, Opissaster, Parabrissus, Peribrissus, Prenaster, Proraster, Pseudobrissus, Schizopneustes, Tripylus

Subtaxa: Schizaster (Dipneustes), Schizaster (Ova), Schizaster (Paraster), Schizaster (Schizaster), Schizaster alcaldei, Schizaster americana, Schizaster bathypetalus, Schizaster beckeri, Schizaster brachypetalus, Schizaster camagueyensis, Schizaster cartagensis, Schizaster cojimarensis, Schizaster compactus, Schizaster cordiformis, Schizaster costaricensis, Schizaster cristatus, Schizaster cubensis, Schizaster cubitabellae, Schizaster delgadoi, Schizaster diabloensis, Schizaster doederleini, Schizaster dumblei, Schizaster egozcuei, Schizaster fernandezi, Schizaster floridanus, Schizaster formelli, Schizaster gerthi, Schizaster habanensis, Schizaster llagunoi, Schizaster martinezensis, Schizaster moronensis, Schizaster munozi, Schizaster neuvitasensis, Schizaster panamensis, Schizaster pastelilloensis, Schizaster rojasi, Schizaster salutis, Schizaster sanctamariae, Schizaster sandiegensis, Schizaster santanae, Schizaster schlosseri, Schizaster sierrai, Schizaster sphenoides, Schizaster stalderi, Schizaster studeri, Schizaster subcylindricus

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Type: Schizaster studeri

Ecology: slow-moving shallow infaunal deposit feeder-detritivore