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Ischyrotoma

Trilobita - Proetida - Dimeropygidae

Taxonomy
Ischyrotoma was named by Raymond (1925) [Sepkoski's age data: O Aren-l O Llvi-u Sepkoski's reference number: 388,795]. Its type is Ischyrotoma twenhofeli.

It was assigned to Solenopleuridae by Raymond (1925); to Proetida by Sepkoski (2002); and to Dimeropygidae by Fortey and Droser (1999), Jell and Adrain (2002), Fortey and Bruton (2013).

Synonymy list
YearName and author
1925Ischyrotoma Raymond p. 54
1999Ischyrotoma Fortey and Droser p. 191
2002Ischyrotoma Jell and Adrain p. 388
2002Ischyrotoma Sepkoski
2013Ischyrotoma Fortey and Bruton

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
RankNameAuthor
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
familyDimeropygidaeHupe 1953
genusIschyrotoma

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. †Ischyrotoma Raymond 1925
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Ischyrotoma anataphra Fortey 1979
Ischyrotoma borealis Fortey 1980
Ischyrotoma eos Kobayashi 1955
Ischyrotoma juabensis Adrain et al. 2001
Ischyrotoma parallela Boyce 1989
Ischyrotoma sila Loch 2007
Ischyrotoma twenhofeli Raymond 1925
Ischyrotoma wahwahensis Adrain et al. 2001
Diagnosis
No diagnoses are available