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Cancris
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Discorbbacea
Family:
Discorbidae
Subfamily:
Baggininae
Formal Genus Name and Reference:
Cancris de MONTFORT, 1808, *1305, p. 267
Type Species:
C. auriculatus ( = Nautilus auriculus Fichtel & MOLL, 1798, *716, p. 108), OD
Images
(Click to enlarge in a new window)
Fig. 462,3. *C. auriculus (Fichtel & Moll), Plio., Italy, 3a-c, opposite sides and edge view, X45 (*2117)
Synonyms
Carcris
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
Eoc.
Beginning International Stage:
Ypresian
Fraction Up In Beginning Stage:
0
Beginning Date:
56
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Test free, trochospiral, biconvex, commonly elongate and auriculate in shape, spiral side evolute, opposite side may have slightly open umbilicus, chambers rapidly enlarging, relatively low and broad, wall calcareous, perforate, radial in structure, may have peripheral keel, aperture on umbilical side, broad apertural lip extending over opening and projecting into umbilicus. [Cancris differs from Baggina in being more elongate, evolute on the spiral side, keeled, and in having an open umbilicus and an apertural lip. It resembles Baggina in having a broad nonperforate area above the aperture.]
References
Montfort, Denys de, 1808, Conchyliologie systématique et classification methodique des coquilles: v. 1, 1xxxvii+409 p.
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Discorbbacea
Family:
Discorbidae
Subfamily:
Baggininae
Formal Genus Name and Reference:
Cancris de MONTFORT, 1808, *1305, p. 267
Type Species:
C. auriculatus ( = Nautilus auriculus Fichtel & MOLL, 1798, *716, p. 108), OD
Images
(Click to enlarge in a new window)
Fig. 462,3. *C. auriculus (Fichtel & Moll), Plio., Italy, 3a-c, opposite sides and edge view, X45 (*2117)
Synonyms
Carcris
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
Eoc.
Beginning International Stage:
Ypresian
Fraction Up In Beginning Stage:
0
Beginning Date:
56
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Test free, trochospiral, biconvex, commonly elongate and auriculate in shape, spiral side evolute, opposite side may have slightly open umbilicus, chambers rapidly enlarging, relatively low and broad, wall calcareous, perforate, radial in structure, may have peripheral keel, aperture on umbilical side, broad apertural lip extending over opening and projecting into umbilicus. [Cancris differs from Baggina in being more elongate, evolute on the spiral side, keeled, and in having an open umbilicus and an apertural lip. It resembles Baggina in having a broad nonperforate area above the aperture.]
References
Montfort, Denys de, 1808, Conchyliologie systématique et classification methodique des coquilles: v. 1, 1xxxvii+409 p.