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Sinucosta
Classification
Phylum:
Brachiopoda
Subphylum:
Rhynchonelliformea
Class:
Rhynchonellata
Order:
Spiriferinida
Suborder:
Spiriferinidina
Superfamily:
Spiriferinoidea
Family:
Sinucostidae
Subfamily:
Sinucostinae
Formal Genus Name and Reference:
Sinucosta DAGYS, 1963, p. 104
Type Species:
Spirifer emmrichi SUESS, 1854, p. 52, OD
Images
(Click to enlarge in a new window)
Fig. 1291, 2a-g. *S. emmrichi (Suess), a-c, dorsal, ventral, and lateral views, X1 (new), d-g, transverse sections, approximately X2 (Dagys, 1963).
Synonyms
Guseriplia
Geographic Distribution
Tethyan geosyncline
Age Range
Beginning Stage in Treatise Usage:
Middle Triassic
Beginning International Stage:
Anisian
Fraction Up In Beginning Stage:
0
Beginning Date:
246.7
Ending Stage in Treatise Usage:
Upper Triassic, ?Lower Jurassic
Ending International Stage:
Toarcian
Fraction Up In Ending Stage:
100
Ending Date:
174.7
Description
Small, outline subovate, cardinal extremities rounded, hinge line narrow, unequally biconvex, ventral valve strongly inflated, subconical, ventral interarea high, concave, smooth, fold and sulcus very weakly developed, poorly differentiated, entire surface multicostate, ribs numerous, mostly simple, microornament of densely spaced, short spinules, dental adminicula short, median septum long, high, with anterior process, cardinalia sessile with nearly vertical, short dorsal adminicula, jugum complete, flattened, fimbriate. Middle Triassic-Upper Triassic, ?Lower Jurassic: Tethyan geosyncline.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Subphylum:
Rhynchonelliformea
Class:
Rhynchonellata
Order:
Spiriferinida
Suborder:
Spiriferinidina
Superfamily:
Spiriferinoidea
Family:
Sinucostidae
Subfamily:
Sinucostinae
Formal Genus Name and Reference:
Sinucosta DAGYS, 1963, p. 104
Type Species:
Spirifer emmrichi SUESS, 1854, p. 52, OD
Images
(Click to enlarge in a new window)
Fig. 1291, 2a-g. *S. emmrichi (Suess), a-c, dorsal, ventral, and lateral views, X1 (new), d-g, transverse sections, approximately X2 (Dagys, 1963).
Synonyms
Guseriplia
Geographic Distribution
Tethyan geosyncline
Age Range
Beginning Stage in Treatise Usage:
Middle Triassic
Beginning International Stage:
Anisian
Fraction Up In Beginning Stage:
0
Beginning Date:
246.7
Ending Stage in Treatise Usage:
Upper Triassic, ?Lower Jurassic
Ending International Stage:
Toarcian
Fraction Up In Ending Stage:
100
Ending Date:
174.7
Description
Small, outline subovate, cardinal extremities rounded, hinge line narrow, unequally biconvex, ventral valve strongly inflated, subconical, ventral interarea high, concave, smooth, fold and sulcus very weakly developed, poorly differentiated, entire surface multicostate, ribs numerous, mostly simple, microornament of densely spaced, short spinules, dental adminicula short, median septum long, high, with anterior process, cardinalia sessile with nearly vertical, short dorsal adminicula, jugum complete, flattened, fimbriate. Middle Triassic-Upper Triassic, ?Lower Jurassic: Tethyan geosyncline.