Silurian (Wenlock) calymenid trilobites from the Cape Phillips Formation, Central Canadian Arctic
Abstract
Calymenid trilobites are common components of diverse Silurian silicified faunas recovered from the Cape Phillips Formation of the Cape Phillips Basin, central Canadian Arctic Archipelago. Calymenids are represented in the Wenlock of the northern Laurentian region by only two genera,DiacalymeneKegel, 1927, andArcticalymenenew genus (type speciesA. viciousinew species). Calymenid diversity in any given fauna is never higher than two species, although these species may be numerically abundant.Arcticalymenebecame extinct during the Homerian, at which point calymenids disappeared forever from the northern Laurentian record.Other new taxa areArcticalymene cookinew species,A. jonesinew species,A. matlockinew species, andA. rotteninew species. Material representing at least two more species of the new genus is reported in open nomenclature.Diacalymene gabrielsiSiveter and Chatterton, 1996, is recorded from the Cape Phillips Basin.
- Publication:
-
Journal of Paleontology
- Pub Date:
- July 1997
- DOI:
- 10.1017/S0022336000040130
- Bibcode:
- 1997JPal...71..657A