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Benthamaspis conica

Trilobita - Proetida - Bathyuridae

Benthamaspis conica was named by Fortey (1979) [Paratypes: cranidia, GSC 56874-5; pygidia, GSC 56876-7; librigena, GSC 56878.]. Its type specimen is GSC 56873, a cephalon/head (cranidium), and it is a 3D body fossil. Its type locality is Catoche Formation type section, which is in a Cassinian open shallow subtidal limestone/dolomite in the Catoche Formation of Canada.

Synonymy list
YearName and author
1966Oculomagnus obreptus Lochman p. 541 figs. Pl. 62, fig. 6-7
1979Benthamaspis conica Fortey p. 102 figs. Pl. 35, fig. 1, 3, 10
1979Benthamaspis obrepta Fortey p. 102
1989Benthamaspis hintzei Boyce p. 56 figs. Pl. 32, fig. 4
1989Benthamaspis obrepta Dean p. 27

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
familyBathyuridaeWalcott 1886
subfamilyBathyurellinaeHupe 1953
genusBenthamaspisPoulsen 1946

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.

Benthamaspis conica Fortey 1979
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Invalid names: Benthamaspis hintzei Boyce 1989 [synonym], Oculomagnus obreptus Lochman 1966 [synonym]
No diagnoses are available
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: base of the Arenig to the top of the Blackhillsian or 478.60000 to 470.00000 Ma

Collections (26 total)

Time interval Ma Country or state Original ID and collection number
Tremadoc486.5 - 477.7Canada (Alberta) Benthamaspis obrepta (10946)
Jeffersonian485.4 - 470.0Canada (Newfoundland) Benthamaspis conica, Benthamaspis hintzei (195756) Benthamaspis hintzei (195785)
Jeffersonian485.4 - 470.0Canada (Newfoundland and Labrador) Benthamaspis hintzei (106229 106236 133147)
Cassinian482.3 - 470.0Canada (Newfoundland and Labrador) Benthamaspis conica (type locality: 103540 106239 106241) Benthamaspis hintzei (106238)
Cassinian482.3 - 470.0Canada (Newfoundland) Benthamaspis conica (195757 195783)
Tulean480.8 - 474.9Canada (Newfoundland) Benthamaspis conica (195769)
Tulean480.8 - 474.9USA (Utah) Benthamaspis obrepta (104101 104102)
Tulean480.8 - 474.9USA (Idaho) Trilobita undet. gen. and sp. C (103806)
Tulean - Blackhillsian480.8 - 470.0Canada (Newfoundland and Labrador) Benthamaspis conica (195776 196381 196503)
Tulean - Blackhillsian480.8 - 470.0Canada (Newfoundland) Benthamaspis conica (195770 195779 196380)
Arenig478.6 - 466.0Greenland Benthamaspis conica (221130)
Floian477.7 - 470.0Canada (Newfoundland) Benthamaspis conica (195748)
Blackhillsian474.9 - 470.0Norway (Spitsbergen) Benthamaspis conica (189838 189839)