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Parvithyris

Rhynchonellata - Athyridida - Athyrididae

Taxonomy
Parvithyris was named by Grunt (2021). Its type is Spirigera gracilis.

It was assigned to Athyridinae by Grunt (2021).

Species
P. gracilis

Synonymy list
YearName and author
2021Parvithyris Grunt pp. 8 - 9

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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
orderAthyrididaBoucot et al. 1964
suborderAthyrididinaBoucot et al. 1964
superfamilyAthyridoideaMcCoy 1844
familyAthyrididaeMcCoy 1841
subfamilyAthyridinaeM'Coy 1844
genusParvithyris

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.

G. †Parvithyris Grunt 2021
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†Parvithyris gracilis Sandberger and Sandberger 1855
Diagnosis
ReferenceDiagnosis
T. Grunt 2021Shell of small size, sub-oval to subpen-tagonal in outline, thick-shelled. Front commissure rec-timarginate to strongly uniplicate. Sinus and fold absent or poorly developed. Sculpture consists of concentric closely spaced and imbricated growth lamellae. Dental plates poor developed, closely adjoining the lateral walls. Hinge plate massive, subquadrate. The median ridge high merged with the inner hinge plate in the ap-ical region.