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Obnixia thaynesiana

Rhynchonellata - Terebratulida - Notothyrididae

Taxonomy
Terebratula thaynesiana was named by Girty (1927). It is a 3D body fossil. Its type locality is USGS 7406 green, Montpelier Canyon, which is in a Spathian open shallow subtidal limestone in the Thaynes Formation of Idaho.

It was recombined as Obnixia thaynesiana by Hoover (1979), Hofmann (2013).

Synonymy list
YearName and author
1927Terebratula thaynesiana Girty p. 435 figs. Pl 30, figs 5-7
1979Obnixia thaynesiana Hoover p. 12 figs. Pl 2, figs 8-27; pl 3, figs 1-13
2013Obnixia thaynesiana Hofmann p. 573 figs. 15B-D

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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
orderTerebratulida
suborderTerebratulidina
superfamilyCryptonelloideaThomson 1926
familyNotothyrididaeLicharew 1960
subfamilyCryptacanthiinaeStehli 1965
genusObnixia
speciesthaynesiana()

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.

†Obnixia thaynesiana Girty 1927
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Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height403.710.9007.304.601.61

Composition: low Mg calcitep
Environment: marineuc
Locomotion: stationaryo
Attached: yesp
Life habit: low-level epifaunalo
Diet: suspension feedero
Vision: blindc
Created: 2004-02-28 14:14:12
Modified: 2018-11-10 17:47:38
Source: o = order, c = class, p = phylum, uc = unranked clade
References: Nesnidal et al. 2013, Aberhan et al. 2004

Age range: base of the Smithian to the top of the Spathian or 249.90000 to 246.70000 Ma

Collections (30 total)


Time interval Ma Country or state Original ID and collection number
Smithian249.9 - 248.1USA (Idaho) Obnixia thaynesiana (109744)
Olenekian249.9 - 246.7USA (Nevada) Obnixia thaynesiana (109732 109757)
Olenekian249.9 - 246.7USA (Utah) Obnixia thaynesiana (109749 109753 109769 109771)
Olenekian249.9 - 246.7USA (California) Terebratula thaynesiana, Obnixia thaynesiana (109758)
Olenekian249.9 - 246.7USA (Wyoming) Obnixia thaynesiana (109734 109746 109747 109748)
Olenekian249.9 - 246.7USA (Idaho) Obnixia thaynesiana (109730 109735 109737 109738 109740 109741 109745)
Olenekian249.9 - 246.7USA (Arizona) Obnixia thaynesiana (109768)
Spathian248.1 - 246.7USA (Utah) Obnixia thaynesiana (72294 109733 109736 109751 109752 156093)
Spathian248.1 - 246.7USA (Idaho) Obnixia thaynesiana (109739 109743) Terebratula thaynesiana (type locality: 108752 109742)