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Rogorthis pakriensis

Rhynchonellata - Orthida - Orthidae

Taxonomy
Cyrtonotella pakriensis was named by Rubel (1961). Its type specimen is GIT 125-102, a valve (ventral valve), and it is a 3D body fossil. Its type locality is Väike Pakri, Pakri Sandstone Fm., which is in a Valaste shallow subtidal sandstone in the Pakri Sandstone Formation of Estonia. It is the type species of Cyrtonotella, Rogorthis.

It was recombined as Rogorthis pakriensis by Hints (2014).

Sister species lacking formal opinion data
R. oriens

Synonymy list
YearName and author
1961Cyrtonotella pakriensis Rubel pp. 182, 183 figs. pl. 18, figs 1–4
2014Rogorthis pakriensis Hints pp. 67-68 fig. 3A–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
orderOrthidaSchuchert and Cooper 1932
suborderOrthidinaSchuchert and Cooper 1932
superfamilyOrthoideaWoodward 1852
familyOrthidaeWoodward 1852
genusRogorthis
speciespakriensis()

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.

†Rogorthis pakriensis Rubel 1961
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Diagnosis
ReferenceDiagnosis
L. Hints 2014Medium-sized orthide with planoconvex shell; ornament fascicostellate, with 12–14 coarse primary costae branching on anterior half of valves. Cardinal process stout on elevated notothyrial platform. Subparallel vascula media divergent anteriorly; thickened rim along interior margins of the valves.