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Strigigenalis stevensi

Trilobita - Proetida - Bathyuridae

Taxonomy
Bolbocephalus stevensi was named by Boyce (1989) [Paratype: NFM F-148-F-151.]. Its type specimen is NFM F-149, a pygidium, and it is a 3D body fossil. Its type locality is BH-94-95, which is in a Cassinian peritidal lime mudstone/wackestone in the Boat Harbour Formation of Canada.

It was recombined as Strigigenalis stevensi by Loch (2007).

Synonymy list
YearName and author
1989Bolbocephalus stevensi Boyce p. 47 figs. Pl. 23, figs. 5-8
2007Strigigenalis stevensi Loch p. 23

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
familyBathyuridaeWalcott 1886
genusStrigigenalisWhittington and Ross 1953
speciesstevensi()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Strigigenalis stevensi Boyce 1989
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: deposit feedero
Vision: well-developedf
Created: 2009-12-19 02:31:34
Modified: 2009-12-19 04:31:34
Source: f = family, o = order, c = class
References: Fortey and Owens 1999, Aberhan et al. 2004, Whittington et al. 1997

Age range: Cassinian or 478.60000 to 468.10000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Canadian485.4 - 468.1Canada (Newfoundland and Labrador) Bolbocephalus stevensi (196382)
Jeffersonian485.4 - 468.1Canada (Newfoundland and Labrador) Bolbocephalus stevensi (106229 106232 106236)
Jeffersonian485.4 - 468.1Canada (Newfoundland) Bolbocephalus stevensi (195756)
Cassinian478.6 - 468.1Canada (Newfoundland and Labrador) Bolbocephalus stevensi (type locality: 106237)