Nannotax3 - ntax_mesozoic - Orthopithonella geometrica

Orthopithonella geometrica

Classification: ntax_mesozoic -> hidden -> deleted -> Orthopithonella geometrica
Sister taxa: << < C. noeliae subsp. noeliae, C. noeliae subsp. recondita, Centosphaera, C. barbata, C. ocellatus, C. prinsii, C. deflandrei (morphotype A), C. deflandrei (morphotype B), C. asymmetricus, M. bramlettei, N. erbae, Obliquipithonella, O. prasina, O. rhombica, Orthopithonella, O. geometrica, O. misurinae, P. fletcheri, P. bownii, P. geometrica, P. triassica subsp. punctata, P. triassica subsp. triassica, P. charlotteii, P. fistulatus, S. pseudobiskayae, S. gephyrion, S. acutiferrus, S. laffittei, Thoracosphaera, T. wombatensis, Z. sisyphus> >>


Citation: Orthopithonella geometrica (Jafar, 1983) Janofske, 1987
Rank: species
Basionym: Prinsiosphaera geometrica Jafar, 1983
Synonyms: Thoracosphaera sp. 2, Moshkovitz, 1982 [cf. Bralower et al. 1991]
Thoracosphaera geometrica (Jafar, 1983) Bown 1987
Archaeopontosphaera primitiva Jafar [cf. Bralower et al. - "the holotype of A. primitiva (Jafar, 1983, fig. 11. I ) appears to be a flattened specimen of T. geometrica"]

Farinacci & Howe catalog pages: P. geometrica * , A. primitiva *

Size: 3-9 µm (Bralower et al. 1991)

Search data:
MetricsLith size: 0->0µm;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source: Total of range of species in this database

Plot of occurrence data:


Bown, P. R. (1987a). Taxonomy, evolution, and biostratigraphy of Late Triassic-Early Jurassic calcareous nannofossils. Special Papers in Palaeontology. 38: 1-118. gs

Bown, P. R. (1998b). Triassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 29-33. gs

Bralower, T. J., Bown, P. R. & Siesser, W. (1991). Significance of Upper Triassic nannofossils from the Southern Hemisphere (ODP Leg 122, Wombat Plateau, NW Australia). Marine Micropaleontology. 17: 119-154. gs

Gardin, S., Krystyn, L., Richoz, S., Bartolini, A. & Galbrun, B. (2012). Where and when the earliest coccolithophores? Lethaia. 45: 507-523. gs

Jafar, A. S. (1983). Significance of Late Triassic calcareous nannoplankton from Austria and Southern Germany. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 166: 218-259. gs

Janofske, D. (1987). Kalkige Nannofossilien aus der Ober-Trias (Rhat) der Nordlichen Kalkalpen. Berliner Geowissenschaftliche Abhandlungen. 86: 45-67. gs V O

Moshkovitz, S. (1982). On the findings of a new calcareous nannofossil (Conusphaera zlambachensis) and other calcareous organisms in the Upper Triassic sediments of Austria. Eclogae Geologicae Helvetiae. 75: 611-619. gs V O


Orthopithonella geometrica compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 8-12-2021

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