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Morphology Ecology and taphonomy   Age range and collections

Fletcherithyris

Rhynchonellata - Terebratulida - Dielasmatidae

Synonyms
Synonymy list
YearName and author
1961Fletcherina Stehli p. 452
1965Fletcherithyris Campbell p. 24 figs. 1-6, Pl. 1; 11-34, Pl. 6; 7-9 (text)
2002Flectcherithyris Sepkoski, Jr.
2002Fletcherina Sepkoski, Jr.
2006Fletcherithyris Williams et al. p. 2032

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderTerebratulida
suborderTerebratulidina
superfamilyDielasmatoideaSchuchert 1913
familyDielasmatidaeSchuchert 1913
subfamilyDielasmatinaeSchuchert 1913
genusFletcherithyris

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.

Diagnosis
ReferenceDiagnosis
K. S. W. Campbell 1965Shells small to moderate in size for terebratuloids; pedicle valve evenly convex transversely, or flattened, or broadly sinuate; umbo sub-erect to erect; foramen labiate; umbonal ridges rounded to sub-angular; anterior and lateral commissures broadly sinuate; dental lamellae present; outer hinge plates attached to inner socket ridges; inner hinge plates meeting floor of valve separately, or forming a sessile sepatlium, or more rarely forming a normal septalium on a low septum; density of puncate averages 250 per sq. mm.