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Leptaena kentuckiana

Strophomenata - Strophomenida - Rafinesquinidae

Taxonomy
Leptaena kentuckiana was named by Pope (1982). Its type specimen is USNM 245367, a valve (ventral valve), and it is a 3D body fossil. Its type locality is USGS 5136-CO. abandoned Clara Wilham Quarry, which is in a Maysvillian open shallow subtidal packstone/mudstone in the Reba Formation of Kentucky.

Sister species lacking formal opinion data
L. dicax, L. ingrica

Synonymy list
YearName and author
1982Leptaena kentuckiana Pope pp. L24 - L26 figs. Plate 8, figures 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
classStrophomenataWilliams et al 1996
orderStrophomenidaOpik 1934
superfamilyStrophomenoideaKing 1846
familyRafinesquinidaeSchuchert 1893
subfamilyLeptaeninaeHall and Clarke 1894
genusLeptaenaDalman 1828
specieskentuckiana

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.

†Leptaena kentuckiana Pope 1982
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Diagnosis
ReferenceDiagnosis
J. K. Pope 1982Large, thin-shelled leptaenid with free margin uniformly rounded. Cardinal angles orthogonal to alate. Geniculation at about 15 mm from beak, not preceded by a prominent depression or ridge. Costellae coarse and wavering; rugae discontinuous, moderate in number and height. Diductor muscle scar not bordered by a ridge.