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Gateway to the Paleobiology Database
Hillyardina Ross, Jr. 1951 (trilobite)

Trilobita - Hystricuridae

PaleoDB taxon number: 21204

Full reference: R. J. Ross, Jr. 1951. Stratigraphy of the Garden City Formation in northeastern Utah, and its trilobite faunas. Yale Peabody Museum of Natural History Bulletin 6:1-161

Parent taxon: Hillyardininae according to J. M. Adrain and S. R. Westrop 2007

Sister taxa: Hyperbolochilus, Metabowmania, Pachycranium, Tanybregma

Subtaxa: Hillyardina levis, Hillyardina marginauctum, Hillyardina minuspustulata, Hillyardina semicylindrica, Hillyardina tasmaniensis

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Type: Hillyardina semicylindrica

Ecology: fast-moving low-level epifaunal deposit feeder