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Proconchidium munsteri
Taxonomy
Conchidium munsteri was named by St. Joseph (1938).
It was recombined as Proconchidium muensteri by Rong and Boucot (1998); it was recombined as Proconchidium munsteri by Nikolaev and Sapelnikov (1969) and Jin et al. (2006).
It was recombined as Proconchidium muensteri by Rong and Boucot (1998); it was recombined as Proconchidium munsteri by Nikolaev and Sapelnikov (1969) and Jin et al. (2006).
Synonymy list
Year | Name and author |
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1938 | Conchidium munsteri St. Joseph pp. 301-304 figs. pl. 5, figs. 9, 11 , pl. 6, figs. 10-11, text-figs. 7, 1 |
1964 | Conchidium munsteri Amsden pp. 229 - 230 figs. Plate 40, fig. 3; text-fig. 4 |
1969 | Proconchidium munsteri Nikolaev and Sapelnikov |
1998 | Proconchidium muensteri Rong and Boucot |
2006 | Proconchidium munsteri Jin et al. |
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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.
†Proconchidium munsteri St. Joseph 1938
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Diagnosis
Reference | Diagnosis | |
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T. W. Amsden 1964 | Elongate, biconvex shells without a well-defined fold and sulcus. They are moderately large, with fragmentary specimens suggesting a maximum length of between 40 and 50 mm. The pedicle beak is fairly prominent and the interareas appear to be poorly developed. Both valves are costate, four to five ribs occupying a space of 5 mm. The pedicle valve has a well-developed spondylium supported on a median septum which extends almost the complete Length of the valve (St. Joseph, 1938, text-fig. 10, pl. 5, figs. 9, 11). In the brachial valve, the apparatus is tripartite with long, rod-like brachial processes supported on subparallel and discrete outer plates; on the valve illustrated in text-fig. 4, the outer plates extend forward at least 8 mrn. The brachial processes are overlain by long inner plates. |