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Sieberella pyriforma

Rhynchonellata - Pentamerida - Gypidulidae

Taxonomy
Sieberella pyriforma was named by Johnson (1970). Its type specimen is USNM 156850 and is a 3D body fossil. Its type locality is USNM 10707. In second saddle on crest of Sulphur Spring Range, SE. of Hill 7881, which is in a Deer Parkian carbonate limestone in the McColley Canyon Formation of Nevada.

Sister species lacking formal opinion data
S. brevirostris, S. macropleura, S. sieberi, S. ulanica, S. weberi

Synonymy list
YearName and author
1970Sieberella pyriforma Johnson pp. 94 - 95 figs. Pl. 12, figs. 1-19

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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
orderPentameridaSchuchert and Cooper 1931
suborderPentameridinaSchuchert and Cooper 1931
superfamilyGypiduloideaSchuchert and LeVene 1929
familyGypidulidaeSchuchert and Le Vene 1929
subfamilyGypidulinaeSchuchert and Le Vene 1929
genusSieberellaOehlert 1887
speciespyriforma

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.

†Sieberella pyriforma Johnson 1970
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Diagnosis
ReferenceDiagnosis
J. G. Johnson 1970S. pyriforma. is characterized by its relatively strongly convex brachial valve, its small, narrow, ventral umbo, its pyriform outline, and its irregular, subangular, bifurcating plications.