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Sphenosteges

Strophomenata - Productida - Aulostegidae

Taxonomy
Sphenosteges was named by Muir-Wood and Cooper (1960) [Sepkoski's age data: P Leon P Guad-u Sepkoski's reference number: 1,40].

It was assigned to Echinosteginae by Muir-Wood and Cooper (1960) and Williams et al. (2000); and to Strophomenida by Sepkoski (2002).

Species
S. hispidus

Synonymy list
YearName and author
1960Sphenosteges Muir-Wood and Cooper p. 108
2000Sphenosteges Williams et al. p. 597
2002Sphenosteges Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classStrophomenataWilliams et al 1996
orderProductidaSarycheva and Sokolskaya 1959
suborderStrophalosiidina
superfamilyAulostegoideaMuir-Wood and Cooper 1960
familyAulostegidae
subfamilyEchinosteginae
genusSphenosteges

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. †Sphenosteges Muir-Wood and Cooper 1960
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†Sphenosteges hispidus Girty 1920
Diagnosis
No diagnoses are available
Measurements
partNmean
shell height15.30

Composition: low Mg calcitep
Environment: marineuc
Locomotion: stationarysubo
Attached: yessubo
Life habit: low-level epifaunalsubo
Diet: suspension feedersubo
Vision: blindc
Created: 2018-11-10 17:08:57
Modified: 2018-11-10 17:08:57
Source: subo = suborder, c = class, p = phylum, uc = unranked clade
References: Williams et al. 2000, Aberhan et al. 2004, Nesnidal et al. 2013

Age range: base of the Roadian to the top of the Capitanian or 272.30000 to 259.51000 Ma

Collections (28 total)


Time interval Ma Country or state Original ID and collection number
Permian298.9 - 251.902USA (Alaska) Aulosteges hispidus (112226)
Roadian272.3 - 268.8Croatia S. sp. (62243 62289)
Wordian266.9 - 264.28USA (Wyoming) S. hispidus (11225)
Wordian - Capitanian266.9 - 259.51Canada (British Columbia) S. hispidus (112836)
Wuchiapingian259.9 - 254.17USA (Nevada) S. hispidus (39438 39449 39451 39453 39457 39458 39460 39465 39466 39751 39752 39754 39758 39788)
Wuchiapingian259.9 - 254.17USA (Utah) S. hispidus (39558 39722) S. sp. (11232)
Wuchiapingian259.9 - 254.17USA (Montana) S. sp. (11279)
Wuchiapingian259.9 - 254.17USA (Idaho) S. sp. (11284)
Lopingian259.9 - 252.17USA (Wyoming) Aulosteges hispidus (87153 236330 236337) S. sp., S. hispidus (11223)