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Idiomesus

Trilobita - Asaphida - Ptychaspididae

Taxonomy
Idiomesus was named by Raymond (1924) [Sepkoski's age data: Cm Fran-u O Trem-l Sepkoski's reference number: 379,697]. It is not extant.

It was assigned to Ptychaspididae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).

Species lacking formal opinion data
I. tantillus

Synonymy list
YearName and author
1924Idiomesus Raymond
2002Idiomesus Jell and Adrain p. 387
2002Idiomesus Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
subclassLibristoma
orderAsaphidaSalter 1864
superfamilyDikelocephaloidea(Miller 1889)
familyPtychaspididaeRaymond 1924
genusIdiomesusRaymond 1924

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. †Idiomesus Raymond 1924
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesg
Adult length: 1.0 to < 10g
Adult width: 1.0 to < 10g
Spines: minorg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingo
Life habit: low-level epifaunalo
Diet: carnivorec
Vision: blindg
Comments: BODY SIZE: Data from Harrington et al. (1959).g
Created: 2009-06-10 08:30:53
Modified: 2009-12-14 01:09:46
Source: g = genus, o = order, c = class
References: Hendy et al. 2009, Hendy 2009, Aberhan et al. 2004

Age range: base of the Dolgellian to the top of the Tremadocian or 492.50000 to 477.70000 Ma

Collections (38 total)


Time interval Ma Country or state Original ID and collection number
Franconian497.0 - 485.4USA (South Dakota) I. granti (9744)
Furongian497.0 - 485.4Canada (Alberta) I. sp. (229379 229380)
Merioneth497.0 - 485.4USA (Vermont) I. tantillus (6871)
Sunwaptan493.5 - 487.5Canada (Newfoundland and Labrador) I. levisensis, I. ultimus, I. tantillus (81270 81271) I. ultimus (81272)
Sunwaptan493.5 - 487.5USA (Nevada) I. sp. (8975)
Sunwaptan493.5 - 487.5Canada (Alberta) I. granti (54090 54091 81304) I. greggi (54092) I. infimus (54093) I. intermedius (54096 81298) I. sp. (81307)
Dolgellian492.5 - 485.4Canada (Quebec) I. levisensis (8933)
Trempealeauan492.5 - 485.4USA (South Dakota) I. infimus (9756 9763)
Trempealeauan492.5 - 485.4USA (Nevada) I. sp. (203998 233789)
Trempealeauan492.5 - 485.4USA (Utah) I. sp. (259)
Trempealeauan492.5 - 485.4USA (Texas) I. intermedius (219648 219652 219653 219654 233747) I. levisensis (216016 216017 216018)
Trempealeauan492.5 - 485.4Canada (Newfoundland and Labrador) I. sp. (105858)
Trempealeauan492.5 - 485.4Canada (Yukon) I. intermedius (55285 55311) I. levisensis (55307)
Trempealeauan492.5 - 485.4Canada (Alberta) I. intermedius (54119)
Tremadocian485.4 - 477.7Canada (Newfoundland and Labrador) I. intermedius (81290) I. intermedius, I. tantillus (81289)
Tremadocian485.4 - 477.7Canada (Yukon) I. intermedius (55315)