Praewaagenoconcha Sokolskaya, 1948
publication ID |
https://doi.org/ 10.5281/zenodo.13304675 |
persistent identifier |
https://treatment.plazi.org/id/A96687CB-2438-FFB0-FF89-FC6E038DF90A |
treatment provided by |
Felipe (2024-07-19 00:38:56, last updated 2024-08-12 11:49:52) |
scientific name |
Praewaagenoconcha Sokolskaya, 1948 |
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Genus Praewaagenoconcha Sokolskaya, 1948 Praewaagenoconcha cf. speciosa ( Hall, 1867)
Fig. 3B–D View Fig .
Praewaagenoconcha cf. speciosa ( Hall, 1867) ; Baliński 1979: 31–32,
pl. 3: 3, 6.
Material.—31 fragmentary specimens from trench Z−17. This species is rare in the most of the trench Z−17 section although it is quite common in the upper part of the set II being one of the characteristic brachiopods of the assemblage of the Pampoecilorhynchus geniculatus interval.
Remarks.— Three specimens of the species reported in earlier studies were recovered from slightly younger strata of trench Z−16 and quarry Z−2 from the lower part of Pa. triangularis conodont Zone ( Baliński 1979). The present collection, although rather poorly preserved, includes numerous specimens. This species is closely similar to Productella speciosa Hall from the Chemung Group, USA ( Hall and Clarke 1892: pl. 17: 25, 26) in its general appearance. It has relatively fine spines, which occur on both valves. One specimen preserves ventral teeth and dorsal sockets. Aspine bearing median ridge, a feature common to members of Praewaagenoconcha , is not observed on the ventral valves of available specimens.
Balinski A. 1979. Brachiopods and conodonts from the Frasnian of the Debnikanticline, southernPoland. Palaeontologia Polonica 39: 1 - 95.
Hall, J. 1867. Descriptions and Figures of Fossil Brachiopoda of the Upper Helderburg, Hamilton, Portage and Chemung Groups. Natural History of New York, Palaeontology, vol. 4, part. 1. 428 pp. New York State Geological Survey. Albany.
Hall, J. and Clarke, J. M. 1892. An introduction to the study of the genera of Paleozoic Brachiopoda. Geological Survey of the State of New York, Paleontology 8: 1 - 394.
Sokolskaya, A. N. (Sokol'skaa, A. N.) 1948. Evolution of the genus Productella Hall and related forms in the Palaeozoic of the Moscow region [in Russian]. Trudy Paleontologiceskogo Instituta Akademii Nauk SSSR 14: 1 - 168.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Praewaagenoconcha Sokolskaya, 1948
Baliński, Andrzej 2002 |
Praewaagenoconcha cf. speciosa ( Hall, 1867 )
Balinski A. 1979: 31 |