Welcome to the Brachiopod subsite on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Sibirirhynchia
Classification
Phylum:
Brachiopoda
Subphylum:
Rhynchonelliformea
Class:
Rhynchonellata
Order:
Rhynchonellida
Superfamily:
Uncinuloidea
Family:
Innaechiidae
Subfamily:
Dogdoinae
Formal Genus Name and Reference:
Sibirirhynchia RZHONSNITSKAIA, 1978, p. 182
Type Species:
Hypothyridina alata KHODALEVICH, 1951, p. 50, OD
Images
(Click to enlarge in a new window)
Fig. 758, 2a-d. * S. alata (Кноdalevich), Sverdlovsk, eastern Urals, holotype, dorsal, ventral, anterior, and lateral views, x1 (Khodalevich, 1951).—Fig. 758, 2e-g. S. alata fainecostata (Torbakova), northeastern slope of Urals, serial sections, x7 (Sapelnikov, Mizens, & Shatrov, 1987).
Synonyms
Geographic Distribution
Kuznetsk, Urals, eastern Siberia, Tadzhikistan
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (upper Emsian)
Beginning International Stage:
Emsian
Fraction Up In Beginning Stage:
66
Beginning Date:
399.81
Ending Stage in Treatise Usage:
Lower Devonian (upper Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Transversely ovate outline, strongly biconvex profile. Beak suberect, foramen with marginal deltidial plates. Fold and sulcus wide with distinct lateral margins, tongue high, rectangular. Costae numerous, fine, simple, from beak, flattened and grooved on paries geniculatus. Dental plates absent. Divided hinge plates horizontal, septalium, dorsal septum, and cardinal process absent.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Subphylum:
Rhynchonelliformea
Class:
Rhynchonellata
Order:
Rhynchonellida
Superfamily:
Uncinuloidea
Family:
Innaechiidae
Subfamily:
Dogdoinae
Formal Genus Name and Reference:
Sibirirhynchia RZHONSNITSKAIA, 1978, p. 182
Type Species:
Hypothyridina alata KHODALEVICH, 1951, p. 50, OD
Images
(Click to enlarge in a new window)
Fig. 758, 2a-d. * S. alata (Кноdalevich), Sverdlovsk, eastern Urals, holotype, dorsal, ventral, anterior, and lateral views, x1 (Khodalevich, 1951).—Fig. 758, 2e-g. S. alata fainecostata (Torbakova), northeastern slope of Urals, serial sections, x7 (Sapelnikov, Mizens, & Shatrov, 1987).
Synonyms
Geographic Distribution
Kuznetsk, Urals, eastern Siberia, Tadzhikistan
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (upper Emsian)
Beginning International Stage:
Emsian
Fraction Up In Beginning Stage:
66
Beginning Date:
399.81
Ending Stage in Treatise Usage:
Lower Devonian (upper Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Transversely ovate outline, strongly biconvex profile. Beak suberect, foramen with marginal deltidial plates. Fold and sulcus wide with distinct lateral margins, tongue high, rectangular. Costae numerous, fine, simple, from beak, flattened and grooved on paries geniculatus. Dental plates absent. Divided hinge plates horizontal, septalium, dorsal septum, and cardinal process absent.