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Terebratuloidea
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Rhynchonellida
Superfamily:
Wellerelloidea
Family:
Allorhynchidae
Formal Genus Name and Reference:
Terebratuloidea WAAGEN, 1883, p. 410
Type Species:
T. davidsoni, OD
Images
(Click to enlarge in a new window)
Fig. 865, 2a-m. *T. davidsoni, Wordian, Salt Range, Pakistan, $a-d$, dorsal, posterior, anterior, and lateral views, Buri Khel, x1.3$ (new), $e-m$, serial sections 3.6, 3.9, 4.2, $4.4, 4.6, 5.0, 5.2, 5.6, 6.4 \\mathrm{~mm}$ from posterior, middle Productus Limestone, Seminodular band, Dhak Pass Nala, x1.4$ (new).
Synonyms
Geographic Distribution
Pakistan, India, central and southeastern Asia, China, Europe, Urals
Age Range
Beginning Stage in Treatise Usage:
Lower Carboniferous (Viséan)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
0
Beginning Date:
346.73
Ending Stage in Treatise Usage:
Upper Permian (Kazanian)
Ending International Stage:
Roadian
Fraction Up In Ending Stage:
100
Ending Date:
269.21
Description
Outline transversely subpentagonal and profile dorsibiconvex. Beak suberect and truncated by large circular mesothyrid foramen, delthyrium with conjunct deltidial plates. Fold and sulcus moderately strong, arising at umbones, anterior commissure uniplicate, serrate. Costae coarse, arising at beaks, rounded in profile. Dental plates close to valve walls, may be obscured by callus but distinct in specimen sectioned, teeth large, rounded. Dorsal median septum absent, hinge plates joined posteriorly by convex plate, divided for most of length, crural bases and crura horizontal to slightly oblique.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Rhynchonellida
Superfamily:
Wellerelloidea
Family:
Allorhynchidae
Formal Genus Name and Reference:
Terebratuloidea WAAGEN, 1883, p. 410
Type Species:
T. davidsoni, OD
Images
(Click to enlarge in a new window)
Fig. 865, 2a-m. *T. davidsoni, Wordian, Salt Range, Pakistan, $a-d$, dorsal, posterior, anterior, and lateral views, Buri Khel, x1.3$ (new), $e-m$, serial sections 3.6, 3.9, 4.2, $4.4, 4.6, 5.0, 5.2, 5.6, 6.4 \\mathrm{~mm}$ from posterior, middle Productus Limestone, Seminodular band, Dhak Pass Nala, x1.4$ (new).
Synonyms
Geographic Distribution
Pakistan, India, central and southeastern Asia, China, Europe, Urals
Age Range
Beginning Stage in Treatise Usage:
Lower Carboniferous (Viséan)
Beginning International Stage:
Visean
Fraction Up In Beginning Stage:
0
Beginning Date:
346.73
Ending Stage in Treatise Usage:
Upper Permian (Kazanian)
Ending International Stage:
Roadian
Fraction Up In Ending Stage:
100
Ending Date:
269.21
Description
Outline transversely subpentagonal and profile dorsibiconvex. Beak suberect and truncated by large circular mesothyrid foramen, delthyrium with conjunct deltidial plates. Fold and sulcus moderately strong, arising at umbones, anterior commissure uniplicate, serrate. Costae coarse, arising at beaks, rounded in profile. Dental plates close to valve walls, may be obscured by callus but distinct in specimen sectioned, teeth large, rounded. Dorsal median septum absent, hinge plates joined posteriorly by convex plate, divided for most of length, crural bases and crura horizontal to slightly oblique.