Benthamaspis conica Fortey 1979 (trilobite)

Trilobita - Proetida - Bathyuridae

Synonyms: Benthamaspis hintzei Boyce 1989, Benthamaspis obrepta Lochman 1966, Oculomagnus obreptus Lochman 1966

Full reference: R. A. Fortey. 1979. Early Ordovician trilobites from the Catoche Formation (St. George Group), western Newfoundland. Geological Survey of Canada Bulletin 321:61-114

Belongs to Benthamaspis according to R. A. Fortey 1979

See also Dean 1989 and Fortey and Bruton 2013

Sister taxa: Benthamaspis canadensis, Benthamaspis diminutiva, Benthamaspis gibberula, Benthamaspis mediacrista, Benthamaspis onomeris, Benthamaspis problematica, Benthamaspis rhochmotis, Benthamaspis sera, Benthamaspis striata

Type specimens:

  • Benthamaspis conica: GSC 56873, a cephalon/head (cranidium). Its type locality is Catoche Formation type section, which is in a Cassinian open shallow subtidal limestone/dolomite in the Catoche Formation of Canada.
  • Benthamaspis hintzei: NFM F-175, a pygidium. Its type locality is BH-95A-114, which is in a Cassinian peritidal lime mudstone/wackestone in the Catoche Formation of Canada.
  • Oculomagnus obreptus: YPM 18201, a cephalon/head (cranidium).

Ecology: fast-moving low-level epifaunal deposit feeder


• Arenig of Greenland (1 collection)

• Ordovician of Canada (19: Newfoundland, Newfoundland and Labrador), Norway (2), United States (3: Idaho, Utah)

• Tremadoc of Canada (1: Alberta)

Total: 26 collections including 30 occurrences

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Specimen images are retrieved through the ePANDDA API.

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