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Daubichites
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Goniatitida
Superfamily:
Neoicoceratoidea
Family:
Paragastrioceratidae
Formal Genus Name and Reference:
Daubichites Y. POPOV, 1963, p. 149
Type Species:
D. orientalis, OD
Images
(Click to enlarge in a new window)
Fig. 107, 2a-c. *D. orientalis, holotype, ?Wordian, Maritime Territory, TsGM 1/8236, plastoholotype, SUI 32740, a-b, X 1, c, diameter at 55 mm (new).
Synonyms
Geographic Distribution
Russia (Maritime Territory, Verkhoian, Novaia Zemlia), China (Zhejiang, Nei Mongol, ?Xizang), Canada (Arctic, ?British Columbia), USA (Wyoming, Idaho, Texas, ?Arizona), Western Australia, Indonesia (Timor)
Age Range
Beginning Stage in Treatise Usage:
Guadalupian (Roadian, ?Wordian)
Beginning International Stage:
Roadian
Fraction Up In Beginning Stage:
0
Beginning Date:
274.37
Ending Stage in Treatise Usage:
Guadalupian (Roadian, ?Wordian)
Ending International Stage:
Wordian
Fraction Up In Ending Stage:
100
Ending Date:
264.34
Description
Similar to paragastrioceratin Tumaroceras in general conch form, but narrower (W/D, commonly 0.5) and with smaller umbilicus (Umin/D, 0.2-0.3). Ribs invariably present on umbilical shoulders of juveniles and may persist to maturity, growth lines and constrictions form shallow to deep hyponomic sinus. Prongs of ventral lobe and lateral lobe both approximately bilaterally symmetrical, subequal in size (width V1/L 0.7–1.0). Eleven species.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Goniatitida
Superfamily:
Neoicoceratoidea
Family:
Paragastrioceratidae
Formal Genus Name and Reference:
Daubichites Y. POPOV, 1963, p. 149
Type Species:
D. orientalis, OD
Images
(Click to enlarge in a new window)
Fig. 107, 2a-c. *D. orientalis, holotype, ?Wordian, Maritime Territory, TsGM 1/8236, plastoholotype, SUI 32740, a-b, X 1, c, diameter at 55 mm (new).
Synonyms
Geographic Distribution
Russia (Maritime Territory, Verkhoian, Novaia Zemlia), China (Zhejiang, Nei Mongol, ?Xizang), Canada (Arctic, ?British Columbia), USA (Wyoming, Idaho, Texas, ?Arizona), Western Australia, Indonesia (Timor)
Age Range
Beginning Stage in Treatise Usage:
Guadalupian (Roadian, ?Wordian)
Beginning International Stage:
Roadian
Fraction Up In Beginning Stage:
0
Beginning Date:
274.37
Ending Stage in Treatise Usage:
Guadalupian (Roadian, ?Wordian)
Ending International Stage:
Wordian
Fraction Up In Ending Stage:
100
Ending Date:
264.34
Description
Similar to paragastrioceratin Tumaroceras in general conch form, but narrower (W/D, commonly 0.5) and with smaller umbilicus (Umin/D, 0.2-0.3). Ribs invariably present on umbilical shoulders of juveniles and may persist to maturity, growth lines and constrictions form shallow to deep hyponomic sinus. Prongs of ventral lobe and lateral lobe both approximately bilaterally symmetrical, subequal in size (width V1/L 0.7–1.0). Eleven species.