Homalonotidae

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: †Trilobitomorpha
Classis: Trilobita
Ordo: Phacopida
Subordo: Calymenina
Superfamilia: Calymenoidea

Familia: Homalonotidae
Genera: Arduennella - Brongniartella - Burmeisterella - Burmeisteria - Digonus - Dipleura - Eohomalonotus - Homalonotus - Huemacaspis - Iberocoryphe - Kerfornella - Leiostegina - Parahomalonotus - Plaesiacomia - Platycoryphe - Scabrella - Trimerus - Wenndorfia
Name

Homalonotidae Chapman, 1890

References

Sandford, A.C. 2005: Homalonotid trilobites from the Silurian and Lower Devonian of south-eastern Australia and New Zealand (Arthropoda: Trilobita: Homalonotidae). Memoirs of Museum Victoria 62(1): 1-66. abstract and pdf Reference page.

Homalonotidae is a family of trilobites that lived from the Ordovician to the Devonian. They are characterised by a shovel-like cephalon (head), and are closely related to the family Calymenidae.[1]

It contains the following genera:[2]

Arduennella
Brongniartella
Burmeisterella
Burmeisteria
Digonus
Dipleura
Eohomalonotus
Homalonotus
Huemacaspis
Iberocoryphe
Kerfornella
Leiostegina
Parahomalonotus
Plaesiacomia
Platycoryphe
Scabrella
Trimerus

References

Curtis R. Congreve & Bruce S. Lieberman (2008). "Phylogenetic and biogeographic analysis of Ordovician homalonotid trilobites" (PDF). The Open Paleontology Journal. 1: 24–32.
S. M. Gon III. "Order Phacopida". Retrieved November 14, 2010.