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Calyptolepta
Taxonomy
Calyptolepta was named by Neuman (1976) [Sepkoski's age data: O Aren-u O Llvi Sepkoski's reference number: 412]. Its type is Calyptolepta diaphragma.
It was assigned to Leptellininae by Neuman (1976); to Grorudiidae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
It was assigned to Leptellininae by Neuman (1976); to Grorudiidae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
Species
C. diaphragma (type species), C. huanghuaensis
Synonyms
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Synonymy list
Year | Name and author |
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1976 | Calyptolepta Neuman pp. 35 - 36 |
2000 | Calyptolepta Williams et al. p. 328 |
2002 | Calyptolepta Sepkoski |
2002 | Yuanbaella Sepkoski |
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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.
G. †Calyptolepta Neuman 1976
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†Calyptolepta diaphragma Neuman 1976
†Calyptolepta huanghuaensis Chang 1983
Invalid names: Yuanbaella [synonym]
Diagnosis
Reference | Diagnosis | |
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R. B. Neuman 1976 | Wide, concavoconvex, parvicostellate shells, the dorsal valve having a chilidium and a bladelike cardinal process, the vent ral valve having an apically perforate pseudodeltidium; platform present on both valves, that of the dorsal va lve having a high median crest, that of the ventral valve having a low ridge between its deeply impressed inner margins. |