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Ujukella fastigata
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).
It was recombined as Ujukella fastigata by Egerquist (1999).
Synonymy list
| Year | Name and author |
|---|---|
| 1961 | Eostrophomena fastigata Rubel pp. 186, 187 figs. pl. XV Fig. 10, 11 |
| 1999 | Ujukella fastigata Egerquist p. 329 figs. 2, 3A–K |
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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.
†Ujukella fastigata Rubel 1961
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. Egerquist 1999 | Shell 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. |