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Ujukella fastigata

Strophomenata - Strophomenida - Sowerbyellidae

Taxonomy
Eostrophomena fastigata was named by Rubel (1961) [Eostrophomena? fastigata]. Its type specimen is GT Br 2592, a valve (exterior of ventral valve), and it is a 3D body fossil.

It was recombined as Ujukella fastigata by Egerquist (1999).

Synonymy list
YearName and author
1961Eostrophomena fastigata Rubel pp. 186, 187 figs. pl. XV Fig. 10, 11
1999Ujukella fastigata Egerquist p. 329 figs. 2, 3A–K

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classStrophomenataWilliams et al 1996
orderStrophomenidaOpik 1934
superfamilyPlectambonitoideaJones 1928
familySowerbyellidaeOpik 1930
subfamilyAnechophragminae
genusUjukella
speciesfastigata(Rubel 1961)

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
E. Egerquist 1999Shell concavo-convex, with maximum width along the cardinal margin, cardinal angles drawn out into pointed alae. Radial ornamentation equally parvicostellate with two diverging accentuated costae. A convex pseudodeltidium covers the main part of the delthyrial aperture. Ventral interior with median ridge anterior to the muscle field and a medianly divided peripheral rim. Dorsal interior with a low lophophore platform surrounded by a rim; bema anteriorly elevated on two submedian septa. Socket plates fused with simple, undercut cardinal process.