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Episageceras
Classification
Phylum:
Unknown
Class:
Unknown
Order:
Prolecanitida
Superfamily:
Medlicottioidea
Family:
Medlicottiidae
Formal Genus Name and Reference:
Episageceras NOETLING, 1904, p. 363
Type Species:
Sageceras (Medlicottia) wynnei Waagen, 1880, p. 81, SD DIENER, 1915, p. 165
Images
(Click to enlarge in a new window)
Fig. 137a. *E. wynnei (Waagen), plastoholotype, Chhidru Formation, Wuchiapingian, Salt Range, SUI 12378, diameter at 70 mm (Waagen, 1880).-Fig. 137b. E. sp., Greville Formation, Induan, D'Urville Island, New Zealand, SUI 39603, diameter at 90 mm (new).-Fig. 137c-f. E. dalailamae (Diener), Otoceras beds, Induan, Spiti, Himalaya, c-e, X 0.67, f, diameter at 80 mm (Noetling, 1904).-FIG. 137 g-j. E. boulei Treat, holotype, MNHN 1924-2, Wuchiapingian, Ankitohazo, Madagascar, g-i, X 0.67, j, diameter at 60 mm (new).- Fig. 137 k-n. E. noetlingi Haniel, k-l, holotype, PIUB 10 of Haniel (1915, pl. 2, 10a-b), Timor, Kuefeu, X 1.33, m, topotype, SUI 62308, diameter at 29 mm (courtesy of D. M. Work & W. B. Sauders), n, hypotype, SUI 12023, Lopingian, Timor, Basleo, diameter at 25 mm (new).-Fig. 137o. E. aff. E. noetlingi based on general similarity of sutures, but whorl section and ventrolateral nodes suggest affinity with Nodosageceras, SUI 32869, La Colorada beds, Wuchiapingian, Coahuila, Mexico, diameter at 18 mm (new).
Synonyms
Protosageceras
Geographic Distribution
Madagascar, Pakistan (Salt Range), India (Himalaya), Russia (Verkhoian, Okhotskii), Indonesia (Timor), New Zealand (D'Urville Island, South Island), East Greenland, Mexico (Coahuila)
Age Range
Beginning Stage in Treatise Usage:
Lopingian (Wuchiapingian)
Beginning International Stage:
Wuchiapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
259.55
Ending Stage in Treatise Usage:
Lower Triassic (Induan)
Ending International Stage:
Induan
Fraction Up In Ending Stage:
100
Ending Date:
249.88
Description
Suture characterized by 10 to 16 subdivisions in ventrolateral saddle and by primary umbilical lobe much shorter and appreciably narrower than adjacent lobes. Sutural formula: (V 2 V 1 V 2 )v 1 v 2 v 3-7 s 1 s 1 l 7-3 l 2 l 1 L 1(d) ) UU1U2..... [Russian]. Five named species.
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Unknown
Order:
Prolecanitida
Superfamily:
Medlicottioidea
Family:
Medlicottiidae
Formal Genus Name and Reference:
Episageceras NOETLING, 1904, p. 363
Type Species:
Sageceras (Medlicottia) wynnei Waagen, 1880, p. 81, SD DIENER, 1915, p. 165
Images
(Click to enlarge in a new window)
Fig. 137a. *E. wynnei (Waagen), plastoholotype, Chhidru Formation, Wuchiapingian, Salt Range, SUI 12378, diameter at 70 mm (Waagen, 1880).-Fig. 137b. E. sp., Greville Formation, Induan, D'Urville Island, New Zealand, SUI 39603, diameter at 90 mm (new).-Fig. 137c-f. E. dalailamae (Diener), Otoceras beds, Induan, Spiti, Himalaya, c-e, X 0.67, f, diameter at 80 mm (Noetling, 1904).-FIG. 137 g-j. E. boulei Treat, holotype, MNHN 1924-2, Wuchiapingian, Ankitohazo, Madagascar, g-i, X 0.67, j, diameter at 60 mm (new).- Fig. 137 k-n. E. noetlingi Haniel, k-l, holotype, PIUB 10 of Haniel (1915, pl. 2, 10a-b), Timor, Kuefeu, X 1.33, m, topotype, SUI 62308, diameter at 29 mm (courtesy of D. M. Work & W. B. Sauders), n, hypotype, SUI 12023, Lopingian, Timor, Basleo, diameter at 25 mm (new).-Fig. 137o. E. aff. E. noetlingi based on general similarity of sutures, but whorl section and ventrolateral nodes suggest affinity with Nodosageceras, SUI 32869, La Colorada beds, Wuchiapingian, Coahuila, Mexico, diameter at 18 mm (new).
Synonyms
Protosageceras
Geographic Distribution
Madagascar, Pakistan (Salt Range), India (Himalaya), Russia (Verkhoian, Okhotskii), Indonesia (Timor), New Zealand (D'Urville Island, South Island), East Greenland, Mexico (Coahuila)
Age Range
Beginning Stage in Treatise Usage:
Lopingian (Wuchiapingian)
Beginning International Stage:
Wuchiapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
259.55
Ending Stage in Treatise Usage:
Lower Triassic (Induan)
Ending International Stage:
Induan
Fraction Up In Ending Stage:
100
Ending Date:
249.88
Description
Suture characterized by 10 to 16 subdivisions in ventrolateral saddle and by primary umbilical lobe much shorter and appreciably narrower than adjacent lobes. Sutural formula: (V 2 V 1 V 2 )v 1 v 2 v 3-7 s 1 s 1 l 7-3 l 2 l 1 L 1(d) ) UU1U2..... [Russian]. Five named species.