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Ischyrotoma anataphra

Artiopoda - Proetida - Dimeropygidae

Taxonomy
Ischyrotoma anataphra was named by Fortey (1979) [Paratypes: cephalic shield, GSC 56880, 56887; cranidium, GSC 56881; pygidia, GSC 56882, 57758.]. Its type specimen is GSC 56879, a cephalon/head, 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.

Sister species lacking formal opinion data

Synonymy list
YearName and author
1979Ischyrotoma anataphra Fortey p. 104 figs. Pl. 36, fig. 1, 6

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou and Bergstrom
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
familyDimeropygidaeHupe 1953
genusIschyrotoma
speciesanataphra

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.

Ischyrotoma anataphra Fortey 1979
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Adult height: 1.0 to < 10g
Spines: noneg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: deposit feedero
Vision: well-developedf
Created: 2009-06-10 08:14:46
Modified: 2009-06-10 10:14:46
Source: g = genus, f = family, o = order, c = class
References: Fortey and Owens 1999, Alvarez et al. 2008, Aberhan et al. 2004, Hendy 2009

Age range: base of the Floian to the top of the Blackhillsian or 477.10000 to 471.30000 Ma

Collections (18 total)


Time interval Ma Country or state Original ID and collection number
Jeffersonian486.85 - 471.3Canada (Newfoundland) Ischyrotoma anataphra (195756 195785)
Cassinian483.4 - 471.3Canada (Newfoundland) Ischyrotoma anataphra (195757 195758 195782 195784)
Cassinian483.4 - 471.3Canada (Newfoundland and Labrador) Ischyrotoma anataphra (69196 type locality: 103540 106239 106241 133127 133140)
Tulean - Blackhillsian481.7 - 471.3Canada (Newfoundland) Ischyrotoma anataphra (195770 196380 196385)
Tulean - Blackhillsian481.7 - 471.3Canada (Newfoundland and Labrador) Ischyrotoma anataphra (195776)
Floian477.1 - 471.3Canada (Newfoundland) Ischyrotoma anataphra (195748)
Arenig477.1 - 468.0Greenland Ischyrotoma anataphra (221130)