Asteroidea - Euaxosida - Platanasteridae

Full reference: J. W. Branstrator. 1972. Lanthanaster cruciformis, a new Upper Ordovician sea star from Cincinnati, Ohio. Journal of Paleontology 46:66-69

Parent taxon: Platanasteridae according to D. B. Blake 2018

See also Blake and Rozhnov 2007, Branstrator 1972, Dean Shackleton 2005 and Sepkoski 2002

Sister taxa: Phyrtosaster, Platanaster, Palaebrisingidae, Foliaster, Palasteriscinae, Palaechinasteridae

Subtaxa: Lanthanaster cruciformis

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Type: Agalmaster intermedius

Ecology: slow-moving low-level epifaunal suspension feeder

Distribution: found only at Lanthanaster cruciformis type locality, Cincinnati (Ordovician of Ohio)

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Specimen images are retrieved through the ePANDDA API.