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Phaneroceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Goniatitida
Suborder:
Goniatitina
Superfamily:
Schistoceratoidea
Family:
Pseudoparalegoceratidae
Formal Genus Name and Reference:
Phaneroceras Plummer & SCOTT, 1937, p. 189
Type Species:
Gastrioceras compressum HYATT, 1891, p. 355, OD
Images
(Click to enlarge in a new window)
Fig. 68, 1a-d. P. kesslerense (Mather), holotype, Fayetteville, western slope of East Mountain, Kessler limestone member of Bloyd Formation, Washington County, Arkansas, USA, WMUC 16123, a-b, X 2, c, suture, based on holotype, X 2.5 (Miller & Moore, 1938), d, cross section, USNM 119677, X 1.4 (Gordon, 1965).
Synonyms
Eoparalegoceras
Geographic Distribution
Spain, Morocco, Algeria, Ukraine (Donets), Russia (Siberia), China (Guizhou), Japan, Canada (Northwest Territories), USA (Arkansas, Ohio, Oklahoma, Texas), Mexico, Peru
Age Range
Beginning Stage in Treatise Usage:
Pennsylvanian (upper Bashkirian)
Beginning International Stage:
Bashkirian
Fraction Up In Beginning Stage:
0
Beginning Date:
323.4
Ending Stage in Treatise Usage:
Pennsylvanian (Kasimovian)
Ending International Stage:
Kasimovian
Fraction Up In Ending Stage:
100
Ending Date:
303.68
Description
Axis of umbilical lobe centered on umbilical shoulder or wall. Ten species. [This genus is transitional to Pseudoparalegoceras. For discussion, see mccaleB, 1968, p. 55, and nassichuK, 1975, p. 110. View of conch of type species is not available; type species of poorly deļ¬ned genus is doubtful.]
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Goniatitida
Suborder:
Goniatitina
Superfamily:
Schistoceratoidea
Family:
Pseudoparalegoceratidae
Formal Genus Name and Reference:
Phaneroceras Plummer & SCOTT, 1937, p. 189
Type Species:
Gastrioceras compressum HYATT, 1891, p. 355, OD
Images
(Click to enlarge in a new window)
Fig. 68, 1a-d. P. kesslerense (Mather), holotype, Fayetteville, western slope of East Mountain, Kessler limestone member of Bloyd Formation, Washington County, Arkansas, USA, WMUC 16123, a-b, X 2, c, suture, based on holotype, X 2.5 (Miller & Moore, 1938), d, cross section, USNM 119677, X 1.4 (Gordon, 1965).
Synonyms
Eoparalegoceras
Geographic Distribution
Spain, Morocco, Algeria, Ukraine (Donets), Russia (Siberia), China (Guizhou), Japan, Canada (Northwest Territories), USA (Arkansas, Ohio, Oklahoma, Texas), Mexico, Peru
Age Range
Beginning Stage in Treatise Usage:
Pennsylvanian (upper Bashkirian)
Beginning International Stage:
Bashkirian
Fraction Up In Beginning Stage:
0
Beginning Date:
323.4
Ending Stage in Treatise Usage:
Pennsylvanian (Kasimovian)
Ending International Stage:
Kasimovian
Fraction Up In Ending Stage:
100
Ending Date:
303.68
Description
Axis of umbilical lobe centered on umbilical shoulder or wall. Ten species. [This genus is transitional to Pseudoparalegoceras. For discussion, see mccaleB, 1968, p. 55, and nassichuK, 1975, p. 110. View of conch of type species is not available; type species of poorly deļ¬ned genus is doubtful.]