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Melonis
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Cassidulinacea
Family:
Anomalinidae
Subfamily:
Anomalininae
Formal Genus Name and Reference:
Melonis de MONTFORT, 1808, *1305, p. 66
Type Species:
Metmscus=Nautilus pompilioides FICHTEL & MOLL, 1798, *716, p. 31; OD
Images
(Click to enlarge in a new window)
Fig. 627,1. *M. pompilioides (Fichtel & Moll), Plio., Eu.(Albania), 1a,b, side, edge views, X100 (*2019). -- Fig. 627,2,3. M. zaandami (van Voorthuysen), Rec., Greenl., 2a,b, 3a,b, side and apert. views, X75 (*1162).
Synonyms
Melossis
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
U.Cret.(Maastricht.), Paleoc.
Beginning International Stage:
Maastrichtian
Fraction Up In Beginning Stage:
0
Beginning Date:
72.17
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Test free, early stage slightly trochospiral, adult planispiral, symmetrical and involute, deeply biumbilicate, with umbilicus commonly bordered by rim of nonperforate skeletal material, periphery broadly rounded; about 9 to 12 chambers per whorl; sutures flush to slightly depressed, radiate, straight to slightly curved, septa double, bilamellar (*946); wall calcareous, coarsely perforate, granular in structure, apertural face, septa, and umbilical thickened rim imperforate, surface smooth; aperture an elongate interiomarginal, equatorial slit, extending laterally to umbilicus on both sides of test.
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:
Cassidulinacea
Family:
Anomalinidae
Subfamily:
Anomalininae
Formal Genus Name and Reference:
Melonis de MONTFORT, 1808, *1305, p. 66
Type Species:
Metmscus=Nautilus pompilioides FICHTEL & MOLL, 1798, *716, p. 31; OD
Images
(Click to enlarge in a new window)
Fig. 627,1. *M. pompilioides (Fichtel & Moll), Plio., Eu.(Albania), 1a,b, side, edge views, X100 (*2019). -- Fig. 627,2,3. M. zaandami (van Voorthuysen), Rec., Greenl., 2a,b, 3a,b, side and apert. views, X75 (*1162).
Synonyms
Melossis
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
U.Cret.(Maastricht.), Paleoc.
Beginning International Stage:
Maastrichtian
Fraction Up In Beginning Stage:
0
Beginning Date:
72.17
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Test free, early stage slightly trochospiral, adult planispiral, symmetrical and involute, deeply biumbilicate, with umbilicus commonly bordered by rim of nonperforate skeletal material, periphery broadly rounded; about 9 to 12 chambers per whorl; sutures flush to slightly depressed, radiate, straight to slightly curved, septa double, bilamellar (*946); wall calcareous, coarsely perforate, granular in structure, apertural face, septa, and umbilical thickened rim imperforate, surface smooth; aperture an elongate interiomarginal, equatorial slit, extending laterally to umbilicus on both sides of test.
References
Montfort, Denys de, 1808, Conchyliologie systématique et classification methodique des coquilles: v. 1, 1xxxvii+409 p.