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Clorilamnulella osmundsbergensis

Rhynchonellata - Pentamerida - Clorindidae

Taxonomy
Clorilamnulella osmundsbergensis was named by Rasmussen et al. (2010). Its type specimen is MGUH 29226 (conjoined valves) and is a 3D body fossil. It is the type species of Clorilamnulella.

Synonymy list
YearName and author
2010Clorilamnulella osmundsbergensis Rasmussen et al. pp. 148 - 150 figs. 10A–Q, 11

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderPentameridaSchuchert and Cooper 1931
suborderPentameridinaSchuchert and Cooper 1931
superfamilyClorindoideaRzhonsnitskaia 1956
familyClorindidaeRzhonsnitskaia 1956
genusClorilamnulella
speciesosmundsbergensis

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
C. M. O. Rasmussen et al. 2010mall to medium sized, equi-biconvex to slightly ventri-biconvex with triangular to sub-pentagonal outline and moderately globose convexity. Ventral valve arched in adult specimens with low obscure sulcus most pronounced at anterior commissure. Ventral interarea apsacline, moderately high, narrow and curved. Dorsal valve less convex, usually with a sharply defined fold, but fold may also be low and obscure to nearly rectimarginate in juvenile specimens. Distinctive growth lamellae seen towards the anterior margin. Ventral interior with
short deep and narrow spondylium supported by an even shorter median septum. Dorsal interior with sub-parallel, anteriorly abbreviated inner plates supporting equally short, but very thick, divergent outer plates. Carinae may be developed as bases of brachial processes, though these also could be hook structures.