Crinoidea - Ampelocrinida - Tribrachyocrinidae

Synonym: Pentadia corona Dana 1849 [nomen dubium]

Full reference: R. J. Willink. 1979. The crinoid genera Tribrachyocrinus McCoy, Calceolispongia Etheridge, Jimbacrinus Teichert and Meganotocrinus n. gen. in the Permian of eastern Australia. Palaeontographica Abt. A 165(3-6):137-194

Parent taxon: Tribrachyocrinidae according to G. D. Webster and P. A. Jell 1999

Sister taxa: Nowracrinus, Tribrachyocrinus

Subtaxa: Meganotocrinus konincki, Meganotocrinus princeps, Meganotocrinus tuberculatus

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Ecology: stationary upper-level epifaunal suspension feeder