†Oligophyma Pomel 1869 (sea urchin)
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Echinoidea - Camarodonta - Toxopneustidae
Parent taxon: Toxopneustidae according to A. B. Smith 2009
See also Fell and Pawson 1966 and Sepkoski 2002
Sister taxa: Goniopneustes, Gymnechinus, Lytechinus, Mirechinus, Nudechinus, Pseudoboletia, Pseudocentrotus, Schizechinus, Scholiechinus, Sphaerechinus, Toxopneustes
Subtaxa: none
Ecology: epifaunal grazer-deposit feeder
Distribution: found only at Hammar Semmoumet Reef, Mascara (Miocene of Algeria)
Specimen images are retrieved through the ePANDDA API.
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