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Kwangsirhynchus
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Rhynchonellida
Superfamily:
Pugnacoidea
Family:
Pugnacidae
Formal Genus Name and Reference:
Kwangsirhynchus Hou & XIAN, 1975, p. 38
Type Species:
K. liujingensis, OD
Images
(Click to enlarge in a new window)
Fig. 797, 2a-i. * K. liujingensis, Pragian-lower Emsian, Nagaoling Formation, Guangxi, Hengxian County, Liujing, southern China, $a-d$, holotype, dorsal, ventral, lateral, and anterior views, x1$ (Hou & Xian, 1975), $e-i$, serial sections $1.0, 3.8, 4.0, 4.2, 5.5 \\mathrm{~mm}$ from posterior, x3$ (new).
Synonyms
Geographic Distribution
southern China, Vietnam
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (Pragian-Emsian)
Beginning International Stage:
Pragian
Fraction Up In Beginning Stage:
0
Beginning Date:
412.4
Ending Stage in Treatise Usage:
Lower Devonian (Pragian-Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Small with subtriangular to subpentagonal outline and dorsibiconvex profile, strongly inflated anteriorly, Beak suberect, Fold and sulcus from umbones, anterior commissure uniplicate with high tongue trapezoid to acuminate, Costae subangular, simple, from beak, present on entire surface, Dental plates short, thin, vertical, Hinge plates divided, horizontal, crural plates not meeting valve floor, dorsal septum and septalium absent.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Rhynchonellida
Superfamily:
Pugnacoidea
Family:
Pugnacidae
Formal Genus Name and Reference:
Kwangsirhynchus Hou & XIAN, 1975, p. 38
Type Species:
K. liujingensis, OD
Images
(Click to enlarge in a new window)
Fig. 797, 2a-i. * K. liujingensis, Pragian-lower Emsian, Nagaoling Formation, Guangxi, Hengxian County, Liujing, southern China, $a-d$, holotype, dorsal, ventral, lateral, and anterior views, x1$ (Hou & Xian, 1975), $e-i$, serial sections $1.0, 3.8, 4.0, 4.2, 5.5 \\mathrm{~mm}$ from posterior, x3$ (new).
Synonyms
Geographic Distribution
southern China, Vietnam
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (Pragian-Emsian)
Beginning International Stage:
Pragian
Fraction Up In Beginning Stage:
0
Beginning Date:
412.4
Ending Stage in Treatise Usage:
Lower Devonian (Pragian-Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Small with subtriangular to subpentagonal outline and dorsibiconvex profile, strongly inflated anteriorly, Beak suberect, Fold and sulcus from umbones, anterior commissure uniplicate with high tongue trapezoid to acuminate, Costae subangular, simple, from beak, present on entire surface, Dental plates short, thin, vertical, Hinge plates divided, horizontal, crural plates not meeting valve floor, dorsal septum and septalium absent.