Trimerus
''Trimerus'' is an extinct genus of trilobite in the family Homalonotidae Homalonotidae is a family of trilobites that lived from the Ordovician to the Devonian. They are characterised by a shovel-like cephalon (arthropod anatomy), cephalon (head), and are closely related to the family Calymenidae. It contains the fol .... There is one described species in ''Trimerus'', ''T. dekayi''. References Homalonotidae Articles created by Qbugbot {{Phacopida-stub ...
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Homalonotidae
Homalonotidae is a family of trilobites that lived from the Ordovician to the Devonian. They are characterised by a shovel-like cephalon (arthropod anatomy), cephalon (head), and are closely related to the family Calymenidae. It contains the following genera: *''Arduennella'' *''Brongniartella'' *''Burmeisterella'' *''Burmeisteria'' *''Digonus'' *''Dipleura'' *''Eohomalonotus'' *''Homalonotus'' *''Huemacaspis'' *''Iberocoryphe'' *''Kerfornella'' *''Leiostegina'' *''Parahomalonotus'' *''Plaesiacomia'' *''Platycoryphe'' *''Scabrella'' *''Trimerus'' References

Homalonotidae, Calymenina Trilobite families {{phacopida-stub ...
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