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Hirsutella
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferinida
Superfamily:
Suessioidea
Family:
Bittnerulidae
Formal Genus Name and Reference:
Hirsutella Cooper & MUIR-WOOD, 1951, p. 195, nom. nov. pro Hirsutina Kirchner, 1933, p. 106, non Tutt, 1909
Type Species:
Spirifer? hirsutus ALBERTI, 1864, p. 156, OD
Images
(Click to enlarge in a new window)
Fig. 1257, 1a–b. *H. hirsuta (ALBERTI), Germany; exterior and interior views of ventral valve, ×1 (Kirchner, 1933).——Fig. 1257, 1c–g. H. multicostata Y ANG & YIN ; dorsal, ventral, lateral, anterior, and posterior views, ×1 (Xu & Liu, 1983a).
Synonyms
Geographic Distribution
western Tethys.
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:
Middle Triassic
Ending International Stage:
Ladinian
Fraction Up In Ending Stage:
100
Ending Date:
237
Description
Small to medium size, outline transversely subovate, usually strongly ventribiconvex, ventral valve subpyramidal, dorsal valve flattened or weakly convex, cardinal extremities subangular to rounded, ventral interarea high, catacline, fold and sulcus weakly developed, entire surface covered with moderately numerous, rounded, simple costae, microornament unknown, ventral interior with high median septum laterally fused to valve wall and dental flanges by callus, dorsal interior with stout, thick ctenophoridium supported by thick callus, jugum unknown.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferinida
Superfamily:
Suessioidea
Family:
Bittnerulidae
Formal Genus Name and Reference:
Hirsutella Cooper & MUIR-WOOD, 1951, p. 195, nom. nov. pro Hirsutina Kirchner, 1933, p. 106, non Tutt, 1909
Type Species:
Spirifer? hirsutus ALBERTI, 1864, p. 156, OD
Images
(Click to enlarge in a new window)
Fig. 1257, 1a–b. *H. hirsuta (ALBERTI), Germany; exterior and interior views of ventral valve, ×1 (Kirchner, 1933).——Fig. 1257, 1c–g. H. multicostata Y ANG & YIN ; dorsal, ventral, lateral, anterior, and posterior views, ×1 (Xu & Liu, 1983a).
Synonyms
Geographic Distribution
western Tethys.
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:
Middle Triassic
Ending International Stage:
Ladinian
Fraction Up In Ending Stage:
100
Ending Date:
237
Description
Small to medium size, outline transversely subovate, usually strongly ventribiconvex, ventral valve subpyramidal, dorsal valve flattened or weakly convex, cardinal extremities subangular to rounded, ventral interarea high, catacline, fold and sulcus weakly developed, entire surface covered with moderately numerous, rounded, simple costae, microornament unknown, ventral interior with high median septum laterally fused to valve wall and dental flanges by callus, dorsal interior with stout, thick ctenophoridium supported by thick callus, jugum unknown.