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Meleagrinella
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Pectinacea (scallops and relatives)
Family:
Oxytomidae
Formal Genus Name and Reference:
Meleagrinella WHITFIELD, 1885, p. 71
Type Species:
Avicula curta Hall, 1852, p. 412, SD COX, 1941, p. 134
Images
(Click to enlarge in a new window)
Fig. C70,2. M. echinata (Smith), M.Jur., Eng., 2a,b, LV ext., RV int., X2 (Cox, n).
Synonyms
Geographic Distribution
cosmop
Age Range
Beginning Stage in Treatise Usage:
U. Trias.(Rhaet.)
Beginning International Stage:
Rhaetian
Fraction Up In Beginning Stage:
0
Beginning Date:
205.74
Ending Stage in Treatise Usage:
U.Jur.
Ending International Stage:
Tithonian
Fraction Up In Ending Stage:
100
Ending Date:
143.1
Description
Small to medium-sized, orbicular, LV strongly convex, RV flat or feebly convex, valves strongly discordant, usually with small pointed posterior wings but no left anterior wing, right anterior auricle small, with deep, narrow subauricular notch, ligamental area almost in plane of valve margins in LV, at right angles to it in RV, ligamental pit broadly triangular, toothlike protuberance anterior to it in LV, which has narrow, commonly squamose radial riblets, RV smooth or with weak radial riblets
References
Whitfield, R.P., 1885, Brachiopoda and Lamellibranchiata of the Raritan clays and greensand marls of New lersey: U.S. Geol. Survey, Mon., no. $9, \mathrm{xx}+338 \mathrm{p}$.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Pectinacea (scallops and relatives)
Family:
Oxytomidae
Formal Genus Name and Reference:
Meleagrinella WHITFIELD, 1885, p. 71
Type Species:
Avicula curta Hall, 1852, p. 412, SD COX, 1941, p. 134
Images
(Click to enlarge in a new window)
Fig. C70,2. M. echinata (Smith), M.Jur., Eng., 2a,b, LV ext., RV int., X2 (Cox, n).
Synonyms
Geographic Distribution
cosmop
Age Range
Beginning Stage in Treatise Usage:
U. Trias.(Rhaet.)
Beginning International Stage:
Rhaetian
Fraction Up In Beginning Stage:
0
Beginning Date:
205.74
Ending Stage in Treatise Usage:
U.Jur.
Ending International Stage:
Tithonian
Fraction Up In Ending Stage:
100
Ending Date:
143.1
Description
Small to medium-sized, orbicular, LV strongly convex, RV flat or feebly convex, valves strongly discordant, usually with small pointed posterior wings but no left anterior wing, right anterior auricle small, with deep, narrow subauricular notch, ligamental area almost in plane of valve margins in LV, at right angles to it in RV, ligamental pit broadly triangular, toothlike protuberance anterior to it in LV, which has narrow, commonly squamose radial riblets, RV smooth or with weak radial riblets
References
Whitfield, R.P., 1885, Brachiopoda and Lamellibranchiata of the Raritan clays and greensand marls of New lersey: U.S. Geol. Survey, Mon., no. $9, \mathrm{xx}+338 \mathrm{p}$.