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Psephosthenaspis Whittington 1953 (trilobite)

Trilobita - Proetida - Bathyuridae

PaleoDB taxon number: 21332

Synonym: Ludvigsenella Tremblay and Westrop 1991 (taxon 174565)

Parent taxon: Bathyurinae according to J. V. Tremblay and S. R. Westrop 1991

Sister taxa: Cullisonia, Gelasinocephalus, Ranasasus, Speyeris

Subtaxa: Psephosthenaspis ellipsepyga, Psephosthenaspis glabrior, Psephosthenaspis microspinosa, Psephosthenaspis pseudobathyurus

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Ecology: fast-moving low-level epifaunal deposit feeder