Spinatrypa Stainbrook, 1951
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https://doi.org/ 10.5281/zenodo.13304867 |
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https://treatment.plazi.org/id/03CC87B1-3222-9244-EC14-C96BFBEE7F4A |
treatment provided by |
Felipe |
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Spinatrypa Stainbrook, 1951 |
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Genus Spinatrypa Stainbrook, 1951 View in CoL Spinatrypa subkwangsiensis ( Tien, 1938)
Fig. 11A–E View Fig .
Atrypa aspera var. subkwangsiensis Tien (var. nov.); Tien 1938: 100–101, pl. 8: 1–4, 17.
Spinatrypa subkwangsiensis (Tien) ; Liu et al. 1982: 198, pl. 144: 7.
Spinatrypa cf. ninghsiangensis Zhao ; Ma 1998: 350, figs. 3, 4A–F.
Spinatrypa sp. A ; Ma 1998: 350, fig. 4G–K.
Material.—Around 200 well preserved shells.
Remarks.—Preliminary study of abundant specimens from the Shetianqiao section shows that S. cf. ninghsiangensis and S. sp. A from the Chongshanpu section ( Ma 1998) probably represent intraspecific variation. When Tien (1938) described the species, he did not designate a holotype. Study of Tien’s type specimens indicates that they may be divided into two morphological groups. Group A is represented by specimens 6280 and 6183 ( Tien 1938: pl. 13: 3, 4) with coarser ribs, wider interspaces, and fewer ribs (no more than 20); group B is represented by specimens 6181 and 6182 ( Tien 1938: pl. 13: 1, 2) with finer and more ribs (around 25). Group A is identical with the Spinatrypa specimens from the Shetianqiao section.
Occurrence.—Widely distributed in central Hunan; Middle to Late Devonian (Frasnian).
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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Spinatrypa Stainbrook, 1951
Ma, Xue-Ping, Sun, Yuan-Lin, Hao, Wei-Cheng & Liao, Wei-Hua 2002 |
Spinatrypa cf. ninghsiangensis
Ma, X. P. 1998: 350 |
Spinatrypa sp. A
Ma, X. P. 1998: 350 |
Spinatrypa subkwangsiensis (Tien)
Liu, Z. H. & Tan, Z. X. & Ding, Y. L. 1982: 198 |
Atrypa aspera var. subkwangsiensis
Tien, C. C. 1938: 100 |