Bolbocephalus convexus Billings 1865 (trilobite)

Trilobita - Proetida - Bathyuridae

Alternative combination: Dolichometopus convexus

Synonym: Bolbocephalus groenlandicus Poulsen 1937

Belongs to Bolbocephalus according to R. A. Fortey and D. L. Bruton 2013

See also Boyce 1989 and Fortey 1979

Sister taxa: Bolbocephalus (Hadrohybus), Bolbocephalus ellesmerensis, Bolbocephalus gunnari, Bolbocephalus jeffersonensis, Bolbocephalus kindlei, Bolbocephalus myktos, Bolbocephalus seelyi, Bolbocephalus stclairi, Bolbocephalus stitti

Type specimens:

  • Bolbocephalus convexus: GSC 718, a pygidium
  • Bolbocephalus groenlandicus: Its type locality is eastern arm of anticline, Ella Island, which is in an Arenig carbonate limestone in the Cape Weber Formation of Greenland.

Ecology: fast-moving low-level epifaunal deposit feeder


• Ordovician of Canada (16: Newfoundland, Newfoundland and Labrador, Ontario, Quebec collections), Norway (2)

• Cassinian of Canada (12: Newfoundland, Newfoundland and Labrador, Quebec), United States (3: Oklahoma)

• Canadian of Canada (1: Newfoundland and Labrador)

• Jeffersonian of Canada (14: Newfoundland, Newfoundland and Labrador)

Total: 48 collections each including a single occurrence

Show more details

Specimen images are retrieved through the ePANDDA API.

Click image to enlarge. Click to access iDigBio record.