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Aulacosphinctes
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Perisphinctaceae
Family:
Perisphinctidae
Formal Genus Name and Reference:
Aulacosphinctes UHLIG, 1910
Type Species:
Am. mörikeanus Oppel, 1863, SD SPATH, 1924
Images
(Click to enlarge in a new window)
Fig. 468,4. °A. moerikeanus (OPPEL), Spiti sh.; 4a,b, X1 (672°)
Synonyms
Geographic Distribution
Alg., Somali., ?Abys.-Madag.-Cutch-Attock-Himalaya- ?Calif. - Peru - Arg.
Age Range
Beginning Stage in Treatise Usage:
Tithon.
Beginning International Stage:
Tithonian
Fraction Up In Beginning Stage:
0
Beginning Date:
149.24
Ending Stage in Treatise Usage:
Tithon.
Ending International Stage:
Tithonian
Fraction Up In Ending Stage:
100
Ending Date:
143.1
Description
Compressed, ribs strong, distant, widely biplicate, some simple, no tubercles, ventral groove deep and persistent, rather long lappets. Could be placed in Berriasellinae but from style of ribbing probably belongs to Himalayitinae.
References
Uhlig, Victor, 1910, Die Fauna de Spiti-Schiefer des Himalaya, ihr geologisches Alter und ihre Weltstellung: Denkschr. Akad. Wiss. Wien, math.-naturwiss. Kl., Band 85, p. 1-79 (531-609).
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Perisphinctaceae
Family:
Perisphinctidae
Formal Genus Name and Reference:
Aulacosphinctes UHLIG, 1910
Type Species:
Am. mörikeanus Oppel, 1863, SD SPATH, 1924
Images
(Click to enlarge in a new window)
Fig. 468,4. °A. moerikeanus (OPPEL), Spiti sh.; 4a,b, X1 (672°)
Synonyms
Geographic Distribution
Alg., Somali., ?Abys.-Madag.-Cutch-Attock-Himalaya- ?Calif. - Peru - Arg.
Age Range
Beginning Stage in Treatise Usage:
Tithon.
Beginning International Stage:
Tithonian
Fraction Up In Beginning Stage:
0
Beginning Date:
149.24
Ending Stage in Treatise Usage:
Tithon.
Ending International Stage:
Tithonian
Fraction Up In Ending Stage:
100
Ending Date:
143.1
Description
Compressed, ribs strong, distant, widely biplicate, some simple, no tubercles, ventral groove deep and persistent, rather long lappets. Could be placed in Berriasellinae but from style of ribbing probably belongs to Himalayitinae.
References
Uhlig, Victor, 1910, Die Fauna de Spiti-Schiefer des Himalaya, ihr geologisches Alter und ihre Weltstellung: Denkschr. Akad. Wiss. Wien, math.-naturwiss. Kl., Band 85, p. 1-79 (531-609).