Phlogoiderhynchus squamosus ( Wang, 1956 )

Ma, Xue-Ping, Becker, Ralph Thomas, Li, Hua & Sun, Yuan-Yuan, 2006, Early and Middle Frasnian brachiopod faunas and turnover on the South China shelf, Acta Palaeontologica Polonica 51 (4), pp. 789-812 : 794-795

publication ID

https://doi.org/ 10.5281/zenodo.13742176

persistent identifier

https://treatment.plazi.org/id/4836037D-D669-6C41-FCF5-D74BFED6F8D8

treatment provided by

Felipe

scientific name

Phlogoiderhynchus squamosus ( Wang, 1956 )
status

 

Phlogoiderhynchus squamosus ( Wang, 1956)

Fig. 4B View Fig .

1956 Paurorhyncha squamosa Wang (sp. nov.); Wang 1956: 171–172, pl. 4: D1–D5.

Material.—One almost complete, exfoliated specimen, sample PY3 (see Fig. 2 View Fig ).

Discussion.—Major features include: surface with about 35 plications, including 8 on fold; flank plications rarely bifurcating or intercalating; plications low and flat topped, with narrow interspaces; with 0–1 parietal plication; internally, dorsal median septum long, extending to about midlength.

Differences between the studied specimen and the type specimen from the same section are in slightly fewer and coarser plications on the fold. The species is assigned to Phlogoiderhynchus by its external morphology (e.g., large size: 37.4 mm wide, ± 29.4 mm long, and 20.7 mm thick for the figured specimen; wider than long, incurved or adpressed ventral beak, fold and sinus morphology, and biconvex profile). No detailed internal structures are available. It differs from the type species— Phlogoiderhynchus arefactus ( Veevers, 1959a) in its larger size, more convex dorsal valve, and stronger and more numerous flank plications. Calvinaria simplex Chen in Xu et al. (1978) from the Tuqiaozi Formation of the Longmenshan section was assigned to Phlogoiderhynchus by Sartenaer (1985: 314), which is almost smooth, and smaller.

Occurrence.—This species is only found in the Panxi section of eastern Yunnan Province; middle part of the Yidade Formation (Early Frasnian).

Kingdom

Animalia

Phylum

Brachiopoda

Class

Rhynchonellata

Order

Rhynchonellida

Family

Septalariidae

Genus

Phlogoiderhynchus

Loc

Phlogoiderhynchus squamosus ( Wang, 1956 )

Ma, Xue-Ping, Becker, Ralph Thomas, Li, Hua & Sun, Yuan-Yuan 2006
2006
Loc

Paurorhyncha squamosa

Wang, Y. 1956: 171
1956
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