Trilobita - Phacopida - Calmoniidae

Synonym: Hadrorakos Delo 1940 [objective synonym]

Parent taxon: Calmoniidae according to P. A. Jell and J. M. Adrain 2002

Sister taxa: Anchiopella, Andinacaste, Australoacaste, Australops, Bouleia, Calmonia, Chiarumanipyge, Clarkeaspis, Colombianaspis, Cryphaeoides, Deltacephalaspis, Eldredgeia, Jujuyops, Kozlowskiaspis, Malvinella, Malvinocooperella, Metacryphaeus, Oosthuizenella, Palpebrops, Parabouleia, Paracalmonia, Pennaia, Phacopina, Plesioconvexa, Plesiomalvinella, Probolops, Punillaspis, Renniella, Schizostylus, Tarijactinoides, Tibagya, Typhloniscus, Vogesina, Wolfartaspis

Subtaxa: Hadrorachus australis

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Type: Cryphaeus australis

Ecology: fast-moving low-level epifaunal carnivore

Distribution: there are no occurrences of Hadrorachus in the database

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Specimen images are retrieved through the ePANDDA API.