Definition of Holcacephalus. Meaning of Holcacephalus. Synonyms of Holcacephalus

- Histiomona Hoekaspiella Hoekaspis Hoffetella Holanshania Holasaphus Holcacephalus Holdenia (=Tiresias) Holia (=Ainoa) Hollardops (=Modellops; =Philipsmithiana)...
- fossils have been reported from the Bonneterre, including Coosella, Holcacephalus, Meteoraspis, Tricrepicephalus, and Welleraspis. Several monoplacophorans...
- †Heterotrypa parvulipora †Hiscobeccus †Hiscobeccus capax †Hocospermum †Holcacephalus – tentative report †Holcospermum †Homotrypa †Homotrypa cincinnatiensis...
- ****ules †Hibbardella †Hibbardia †Hibbardia lacrimosa †Hindeodus †Holcacephalus †Holcacephalus tunda †Hollinella †Hollinella sella – or unidentified comparable...
- comparable form †Hibbardella †Hiscobeccus †Hiscobeccus gigas †Holcacephalus †Holcacephalus tenerus †Hollina †Hollina occidentalis †Hollinella †Hollinella...
- nomenclature †Hoffmannia fisheri – type locality for species †Holcacephalus †Holcacephalus tenerus †Holosia – type locality for genus †Holosia ovalis –...