ammonites
banner
Gateway to the Paleobiology Database
Mesonacis Walcott 1885 (trilobite)

Trilobita - Olenellida

PaleoDB taxon number: 19142

Alternative spelling: Olenellus (Mesonacis)

Synonyms: Angustolenellus Palmer and Repina 1993 (no. 19111), Elliptocephalus (Schmidtia) Moberg 1899 (no. 375576), Fremontia Raw 1936 (no. 155360), Schmidtia Moberg 1899 (no. 375574)

Full reference: C. D. Walcott. 1885. New genus of Cambrian trilobites, Mesonacis. American Journal of Science 3(29):328-330

Parent taxon: Mesonacinae according to B. S. Lieberman 1999

Sister taxon: Mesolenellus

Subtaxa: Fremontia canadensis, Mesonacis bonnensis, Mesonacis cylindricus, Mesonacis eagerensis, Mesonacis fremonti, Mesonacis hamoculus, Mesonacis vermontanus

View classification

Type: Olenus vermontana

Ecology: fast-moving low-level epifaunal carnivore