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Eosigmoilina
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Miliolina
Superfamily:
Miliolacea
Family:
Nubeculariidae
Subfamily:
Ophthalmidiinae
Formal Genus Name and Reference:
Eosigmoilina Ganelina in Kiparisova, et AL., 1956, *1040, p.17
Type Species:
E. explicata; OD
Images
(Click to enlarge in a new window)
Fig. 342,1,2. *E. explicata, USSR; 1a-c, opposite sides and edge views of paratype, X100; 2, long. sec. showing change in axis of coiling, X150 (*1040)
Synonyms
Geographic Distribution
USSR(Dnieper-Donets Basm)-Eu.
(Czech.)
Age Range
Beginning Stage in Treatise Usage:
M.Carb.
Beginning International Stage:
Serpukhovian
Fraction Up In Beginning Stage:
0
Beginning Date:
330.34
Ending Stage in Treatise Usage:
M.Carb.
Ending International Stage:
Bashkirian
Fraction Up In Ending Stage:
48.4
Ending Date:
319.4
Description
Test compressed-ovate, globular proloculus followed by nonseptate tubular second chamber in glomospirine coil. later portion with 2 chambers to whorl and development as in Sigmoililla, with plane of coiling gradually changing to form sigmoid curve as seen in transverse section; septa very thin; wall calcareous. imperforate, thin, aperture simple rounded opening at end of final chamber. [Originally placed in the Miliolidae, this genus is here transferred to the Ophthalmidiinae, family Nubeculariidae, because of its nonseptate enrolled second chamber and later milioline development, and the simple apertural opening.]
References
Kiparisova, L. D., Markovsky, B. P., \& Radchenko, G. P., 1956, Materialy po paleontologii, novye semeystva i rody: Vses. NauchnoIssledov. Geol. Inst. (VSEGEI), Minist. Geol. \& Okhrany Nedr. SSSR, p. 1-354, pl. 1-43. [Material on paleontology, new families and genera.] (1040A) Kireeva, G. D., 1949, Pseudofuzuliny tastubskogo i sterlitamakskogo gorizontov pogrebennykh massivov Bashkirii: Akad. Nauk SSSR, Inst. Geol., Trudy, no. 105 (geol. ser. 35), p. 171-191, pl. 1-6. [Pseudofusulinas of the Tastubsky and Sterlitamaksky horizons of the buried Bashkir massif.] -(1040A bis) 1949, Nekotorye novye vidy fuzulinid iz Kamennougol'nykh izvestnyakov tsentral'nogo raiona Donbassa: Glavnoe Upravlenie Razvedkam Uglya, Geol. Issled. Byuro, Trudy, no. 6 (Moscow), non vidi. [Some new species of the Fusulinidae from the Carboniferous limestone of the Donbass re-gion.]-(1040B) 1950, Novye vidy furulinid iz izvestnyakou stit $C_{s}{ }^{1}{ }_{i} C_{s}{ }^{2}$ Donetskogo basseyna: Geol.-Issled. Raboty, Glavnoe Upravlenie Razvedkam Uglya, p. 193-212. [New species of Fusulinidae from the well-known formations $C_{3}{ }^{1}$ and $C_{3}{ }^{2}$ of the Donets Basin.] - (1040C) 1953, O nizhney granitse verkhnego karbona $v$ Donetskom basseyne: Akad. Nauk SSSR, Doklady, v. 88, no. 1, p. 117-119. [The lower boundary of the Upper Carboniferous in the Donets Basin.] Klasz, Ivan de, 1953, Quadratobuliminella n.gen., eine neue Foraminiferengattung von der Wende Kreide-Tertiär: Neues Jahrb. Paläont., Monatshefte, v. 10, p. 434-436, text-fig. 1-2.
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Miliolina
Superfamily:
Miliolacea
Family:
Nubeculariidae
Subfamily:
Ophthalmidiinae
Formal Genus Name and Reference:
Eosigmoilina Ganelina in Kiparisova, et AL., 1956, *1040, p.17
Type Species:
E. explicata; OD
Images
(Click to enlarge in a new window)
Fig. 342,1,2. *E. explicata, USSR; 1a-c, opposite sides and edge views of paratype, X100; 2, long. sec. showing change in axis of coiling, X150 (*1040)
Synonyms
Geographic Distribution
USSR(Dnieper-Donets Basm)-Eu.
(Czech.)
Age Range
Beginning Stage in Treatise Usage:
M.Carb.
Beginning International Stage:
Serpukhovian
Fraction Up In Beginning Stage:
0
Beginning Date:
330.34
Ending Stage in Treatise Usage:
M.Carb.
Ending International Stage:
Bashkirian
Fraction Up In Ending Stage:
48.4
Ending Date:
319.4
Description
Test compressed-ovate, globular proloculus followed by nonseptate tubular second chamber in glomospirine coil. later portion with 2 chambers to whorl and development as in Sigmoililla, with plane of coiling gradually changing to form sigmoid curve as seen in transverse section; septa very thin; wall calcareous. imperforate, thin, aperture simple rounded opening at end of final chamber. [Originally placed in the Miliolidae, this genus is here transferred to the Ophthalmidiinae, family Nubeculariidae, because of its nonseptate enrolled second chamber and later milioline development, and the simple apertural opening.]
References
Kiparisova, L. D., Markovsky, B. P., \& Radchenko, G. P., 1956, Materialy po paleontologii, novye semeystva i rody: Vses. NauchnoIssledov. Geol. Inst. (VSEGEI), Minist. Geol. \& Okhrany Nedr. SSSR, p. 1-354, pl. 1-43. [Material on paleontology, new families and genera.] (1040A) Kireeva, G. D., 1949, Pseudofuzuliny tastubskogo i sterlitamakskogo gorizontov pogrebennykh massivov Bashkirii: Akad. Nauk SSSR, Inst. Geol., Trudy, no. 105 (geol. ser. 35), p. 171-191, pl. 1-6. [Pseudofusulinas of the Tastubsky and Sterlitamaksky horizons of the buried Bashkir massif.] -(1040A bis) 1949, Nekotorye novye vidy fuzulinid iz Kamennougol'nykh izvestnyakov tsentral'nogo raiona Donbassa: Glavnoe Upravlenie Razvedkam Uglya, Geol. Issled. Byuro, Trudy, no. 6 (Moscow), non vidi. [Some new species of the Fusulinidae from the Carboniferous limestone of the Donbass re-gion.]-(1040B) 1950, Novye vidy furulinid iz izvestnyakou stit $C_{s}{ }^{1}{ }_{i} C_{s}{ }^{2}$ Donetskogo basseyna: Geol.-Issled. Raboty, Glavnoe Upravlenie Razvedkam Uglya, p. 193-212. [New species of Fusulinidae from the well-known formations $C_{3}{ }^{1}$ and $C_{3}{ }^{2}$ of the Donets Basin.] - (1040C) 1953, O nizhney granitse verkhnego karbona $v$ Donetskom basseyne: Akad. Nauk SSSR, Doklady, v. 88, no. 1, p. 117-119. [The lower boundary of the Upper Carboniferous in the Donets Basin.] Klasz, Ivan de, 1953, Quadratobuliminella n.gen., eine neue Foraminiferengattung von der Wende Kreide-Tertiär: Neues Jahrb. Paläont., Monatshefte, v. 10, p. 434-436, text-fig. 1-2.