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Phelopteria
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Pteriacea
Family:
Bakevelliidae
Formal Genus Name and Reference:
Phelopteria STEPHENSON, 1952, p. 68
Type Species:
Pteria? dalli STEPHENSON, 1936, p. 389, OD
Images
(Click to enlarge in a new window)
Fig. C42,la-c. *P. dalli (STEPHENSON), U.Cret.(Cenoman.), USA(Tex.); la-c, LV, dorsal view, RV, all Xl (890).--Fig. C42,ld. P. caudigera (ZITTEL), U.Cret., Aus.; RV ext., X 1 (Zittel, 1866).
Synonyms
Geographic Distribution
N.Am.-Eu.-W.Af
Age Range
Beginning Stage in Treatise Usage:
Cret.
Beginning International Stage:
Berriasian
Fraction Up In Beginning Stage:
0
Beginning Date:
143.1
Ending Stage in Treatise Usage:
Cret.
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
Medium-sized Pteria-like, slightly inequivalve, convexity moderate, anterior wing acutely angular, well demarcated from body in both valves; posterior wing with acute tip but only shallow marginal sinus; ligamental area muitivincular in earlier stages of growth, later with one long, shallow ligamental pit.
References
Stephenson, L. W., 1952, Larger invertebrate fossils of the Woodbine Formation (Cenomanian) of Texas: U.S. Geol. Survey, Prof. Paper 242, 226 p., 59 pl.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Pteriacea
Family:
Bakevelliidae
Formal Genus Name and Reference:
Phelopteria STEPHENSON, 1952, p. 68
Type Species:
Pteria? dalli STEPHENSON, 1936, p. 389, OD
Images
(Click to enlarge in a new window)
Fig. C42,la-c. *P. dalli (STEPHENSON), U.Cret.(Cenoman.), USA(Tex.); la-c, LV, dorsal view, RV, all Xl (890).--Fig. C42,ld. P. caudigera (ZITTEL), U.Cret., Aus.; RV ext., X 1 (Zittel, 1866).
Synonyms
Geographic Distribution
N.Am.-Eu.-W.Af
Age Range
Beginning Stage in Treatise Usage:
Cret.
Beginning International Stage:
Berriasian
Fraction Up In Beginning Stage:
0
Beginning Date:
143.1
Ending Stage in Treatise Usage:
Cret.
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
100
Ending Date:
66.04
Description
Medium-sized Pteria-like, slightly inequivalve, convexity moderate, anterior wing acutely angular, well demarcated from body in both valves; posterior wing with acute tip but only shallow marginal sinus; ligamental area muitivincular in earlier stages of growth, later with one long, shallow ligamental pit.
References
Stephenson, L. W., 1952, Larger invertebrate fossils of the Woodbine Formation (Cenomanian) of Texas: U.S. Geol. Survey, Prof. Paper 242, 226 p., 59 pl.