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Idiomesus

Artiopoda - 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 Ptychopariida by Sepkoski (2002); and to Ptychaspididae by Jell and Adrain (2002).

Species
I. intermedius, I. levisensis
Species lacking formal opinion data
I. granti, I. greggi, I. infimus, I. tantillus, I. ultimus

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
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou 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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†Idiomesus intermedius Rasetti 1959
†Idiomesus levisensis Rasetti 1944
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, Aberhan et al. 2004, Hendy 2009

Age range: base of the Dolgellian to the top of the Skullrockian or 490.20000 to 483.40000 Ma

Collections (66 total)


Time interval Ma Country or state Original ID and collection number
Franconian497.0 - 486.85USA (South Dakota) I. granti (9744)
Furongian497.0 - 486.85Canada (Alberta) I. sp. (229379 229380)
Merioneth497.0 - 486.85USA (Vermont) I. tantillus (6871)
Sunwaptan493.5 - 488.9USA (Nevada) I. intermedius (236000) I. levisensis (235995) I. sp. (8975 203998)
Sunwaptan493.5 - 488.9Canada (Newfoundland and Labrador) I. ultimus (81272) I. ultimus, I. tantillus, I. levisensis (81270 81271)
Sunwaptan493.5 - 488.9USA (Oklahoma) I. levisensis (240389 240390 240391 240399 240401 240412 240415 240417 240419 240443 240448 240451 240453 240454 240455 240458 240459 240462 240464 240465 240471)
Sunwaptan493.5 - 488.9USA (Utah) I. intermedius (235997 235998 235999)
Sunwaptan493.5 - 488.9Canada (Alberta) I. granti (54090 54091 81304) I. greggi (54092) I. infimus (54093) I. intermedius (54096 81298) I. sp. (81307)
Dolgellian490.2 - 486.85Canada (Quebec) I. levisensis (8933)
Trempealeauan490.2 - 486.85Canada (Yukon) I. intermedius (55285 55311) I. levisensis (55307)
Trempealeauan490.2 - 486.85Canada (Quebec) Stigmametopus levisensis (224140)
Trempealeauan490.2 - 486.85USA (Nevada) I. sp. (233789)
Trempealeauan490.2 - 486.85USA (Texas) I. intermedius (219648 219652 219653 219654 233747) I. levisensis (216016 216017 216018)
Trempealeauan490.2 - 486.85Canada (Newfoundland and Labrador) I. sp. (105858)
Trempealeauan490.2 - 486.85USA (South Dakota) I. infimus (9756 9763)
Trempealeauan490.2 - 486.85Canada (Alberta) I. intermedius (54119)
Trempealeauan490.2 - 486.85USA (Utah) I. sp. (259)
Skullrockian488.9 - 483.4USA (Texas) I. intermedius (240193)
Tremadocian486.85 - 477.1Canada (Yukon) I. intermedius (55315)
Tremadocian486.85 - 477.1Canada (Newfoundland and Labrador) I. intermedius (81290) I. tantillus, I. intermedius (81289)