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Alexenia occidentalis

Strophomenata - Productida - Productellidae

Taxonomy
Alexenia occidentalis was named by Cooper (1957). Its type specimen is USNM 125350 and is a 3D body fossil. Its type locality is UO 638, Suplee Anticline, which is in a Kungurian marine limestone in the Coyote Butte Formation of Oregon.

Synonymy list
YearName and author
1957Alexenia occidentalis Cooper p. 44 figs. Pl 2, figs 25-34

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
RankNameAuthor
classStrophomenataWilliams et al 1996
orderProductidaSarycheva and Sokolskaya 1959
suborderProductidina
superfamilyProductoideaGray 1840
familyProductellidaeSchuchert 1929
subfamilyProductinaeGray 1840
tribeSpyridiophorini()
genusAlexenia
speciesoccidentalis

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.

†Alexenia occidentalis Cooper 1957
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitep
Environment: marineuc
Locomotion: stationarysubo
Attached: yesp
Life habit: low-level epifaunalsubo
Diet: suspension feedersubo
Vision: blindc
Created: 2018-11-10 17:08:41
Modified: 2018-11-10 17:08:41
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: Kungurian or 279.30000 to 272.30000 Ma

Collections (17 total)


Time interval Ma Country or state Original ID and collection number
Kungurian279.3 - 272.3USA (Oregon) Alexenia occidentalis (40964 40969 40976 40977 40981 41230 41232 41244 41250 41252 41254 41267 41268 41277 129173 129175 type locality: 129177)