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Trematorthis karasaiensis

Rhynchonellata - Orthida - Orthidiellidae

Taxonomy
Trematorthis karasaiensis was named by Nikitina et al. (2006). Its type specimen is USNM 485016, a shell (complete shell), and it is a 3D body fossil. Its type locality is Locality 133. 4 kilometers southwest of Alakul Lake, which is in an Abereiddian open shallow subtidal limestone/siltstone in the Alakul Formation of Kazakhstan.

Synonymy list
YearName and author
2006Trematorthis karasaiensis Nikitina et al. pp. 202 - 203 fig. 36.1–5

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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
orderOrthidaSchuchert and Cooper 1932
suborderOrthidinaSchuchert and Cooper 1932
superfamilyOrthoideaWoodward 1852
familyOrthidiellidaeUlrich and Cooper 1936
genusTrematorthis
specieskarasaiensis

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.

Trematorthis karasaiensis Nikitina et al. 2006
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Diagnosis
ReferenceDiagnosis
O. I. Nikitina et al. 2006Ventribiconvex with obtuse cardinal extremities; subcarinate ventral valve; radial ornament fascicostellate; cardinal process simple, blade-like and not fused with chilidial plates.