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Trilobita - Phacopida - Pliomeridae

Strotactinus was named by Bradley (1925) [Sepkoski's age data: O Aren-u Sepkoski's reference number: 795]. It is not extant.

It was assigned to Cybelopsinae by Fortey (1979); to Phacopida by Sepkoski (2002); and to Pliomeridae by Jell and Adrain (2002).

Species lacking formal opinion data

Synonymy list
YearName and author
1925Strotactinus Bradley
1979Strotactinus Fortey p. 106
2002Strotactinus Jell and Adrain p. 448
2002Strotactinus Sepkoski

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderCheirurinaHarrington and Leanza 1957
familyPliomeridaeRaymond 1913
genusStrotactinusBradley 1925

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.

G. †Strotactinus Bradley 1925
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Strotactinus insularis Billings 1865
No diagnoses are available
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesf
Adult length: 10 to < 100f
Adult width: 10 to < 100f
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Created: 2009-06-11 18:29:43
Modified: 2009-12-16 01:33:48
Source: f = family, c = class
References: Aberhan et al. 2004, Hendy 2009

Age range: base of the Floian to the top of the Blackhillsian or 477.70000 to 470.00000 Ma

Collections (16 total)

Time interval Ma Country or state Original ID and collection number
Ibexian487.5 - 470.0Canada (Quebec) S. sp. (111453)
Ibexian487.5 - 470.0Norway (Spitsbergen) S. sp. A (106475)
Cassinian482.3 - 470.0United Kingdom (Scotland) S. salteri, S. sp. (75589)
Cassinian482.3 - 470.0Canada (Newfoundland) S. insularis (195757 195758 195784)
Cassinian482.3 - 470.0Canada (Newfoundland and Labrador) S. insularis (103540 106241 133127 133140)
Tulean - Blackhillsian480.8 - 470.0Canada (Newfoundland) S. insularis (196380 196385)
Tulean - Blackhillsian480.8 - 470.0Canada (Newfoundland and Labrador) S. insularis (195776 196381)
Arenig478.6 - 466.0Greenland S. sp. (221130)
Floian477.7 - 470.0Canada (Ontario) S. salteri (173861)