Acimetopus
From Wikipedia, the free encyclopedia
| Acimetopus Temporal range: | |
|---|---|
 | |
| Acimetopus bilobatus | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Trilobita (?) |
| Order: | †Agnostida |
| Family: | †Weymouthiidae |
| Genus: | †Acimetopus Rasetti, 1966 |
| Type species | |
| Acimetopus bilobatus Rasetti, 1966 [1] | |
Acimetopus[2] is a genus of eodiscinid trilobite belonging to the family Weymouthiidae Kobayashi (1943),[3] Order Agnostida Salter (1864).[4] It lived during the Botomian stage.[1] = late Lower Cambrian Stage 4 (upper of two stages subdividing the un-named Series 2); the upper Botomian boundary corresponds to base of the Middle Cambrian, Miaolingian Series and Wuliuan stage.
Acimetopus bilobatus Rasetti, 1966, from his locality cs-4 in limestone beds which form several outcrops on a hillside at Griswold Farm, about 1 mile southeast of North Chatham, Columbia County, New York State, USA; the associated faunule is referred to as the Acimetopus bilobatus faunule due to the nominate species being one of the most common and characteristic trilobites.
Distribution
Acimetopus is known from the Lower Cambrian of the United States (unnamed formation, East Chatham Quad, Columbia County, New York State 42°24′N 73°30′W / 42.400°N 73.500°W),[5] and England.[6]
