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Astegosia subquadrata

Rhynchonellata - Spiriferida - Elythidae

Taxonomy
Squamularia subquadrata was named by Girty (1908). Its type specimen is USNM 118596a, a shell (Articulated shell), and it is a 3D body fossil. It is the type species of Astegosia.

It was recombined as Astegosia subquadrata by Cooper and Grant (1969) and Cooper and Grant (1976).

Synonymy list
YearName and author
1908Squamularia subquadrata Girty p. 369 figs. Pl 14, figs 2-3a
1909Squamularia subquadrata Girty p. 369 figs. Pl 14, figs 2-3a
1969Astegosia subquadrata Cooper and Grant p. 16
1976Astegosia subquadrata Cooper and Grant p. 2258 figs. Pl 641, figs 1-57; pl 642, figs 1-20; pl 649, figs 25,26

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderSpiriferida
suborderDelthyridinaIvanova 1972
superfamilyReticularioidea
familyElythidaeFredericks 1924
subfamilyPhricodothyridinaeCaster 1939
genusAstegosia
speciessubquadrata()

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.

†Astegosia subquadrata Girty 1908
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Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height1019.931.3028.510.15.92
valve height116.6----

Composition: low Mg calcitep
Environment: marineuc
Locomotion: stationaryo
Attached: yesp
Life habit: epifaunalo
Diet: suspension feedero
Vision: blindc
Created: 2004-02-28 14:12:52
Modified: 2004-02-28 16:12:52
Source: o = order, c = class, p = phylum, uc = unranked clade
References: Nesnidal et al. 2013, Aberhan et al. 2004

Age range: Capitanian or 264.28000 to 259.51000 Ma

Collections (31 total)


Time interval Ma Country or state Original ID and collection number
Capitanian264.28 - 259.51USA (Texas) Astegosia subquadrata (81589 81590 81591 81611 81613 81614 81615 81967 101798 101809 102618 105893 105904 105995 106250 106252) Squamularia subquadrata (108801 108812)
Capitanian264.28 - 259.51USA (New Mexico) Astegosia subquadrata (81620 81629 81955 81962 81964 81966 102609 102622 102625 102628 105989 106253 106302)