A Note on the Homeomorphism of Three Soritid Genera (Foraminiferida)

Seiglie, George A.

doi:10.2307/1485453

Cited by 2 publications

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“…An attempt was treated by Seiglie 3 for three soritid benthic foraminiferal genera. Anan (in press) 4 was presented three cases of homeomorphy in benthic foraminifera: (1) the Paleocene Annulofrondicularia nakkadyi (Futyan) and the Late Eocene A. sztrakosae (n.…”

Section: Previous Studiesmentioning

confidence: 99%

Homeomorphy of some benthic foraminiferal species in the Southern Tethys

Anan¹

2023

JMEN

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Six diagnostic Maastrichtian foraminiferal species have been recorded and illustrated from two sections Dokan and Azmer sections in the Kurdistan region, Northeast Iraq. This assemblage proposed with other species in three countries in the Southern Tethys (Tunisia, Egypt, Iraq, United Arab Emirates and Pakistan) a homeomorphic phenomenon. The phenomenon known as homeomorphy, in which an organism simulates an unrelated organism in form and function. In biology the homeomorphy is the evolution of similar external forms from very distant ancestors, happening as a result of convergent evolution, while in paleontology this phenomenon means the existence of two or more fossil taxa that appear to have similar morphology, although they are unrelated, which they might occur in rather different stratigraphic levels, and the test consists of a number of chambers that arrange in numerous shapes and sizes. The present study added additional six benthic foraminiferal homeomorphy: (1) the Late Campanian Pseudoclavulina farisi Anan n. sp. and Paleocene P. hewaidyi Anan, (2) the Late Campanian Gaudryina acuta Anan n. sp. and the Danian Gaudryina limbata Said & Kenawy, (3) the Late Campanian Gaudryina jaffi Anan n. sp. and the Early Eocene G. ameeri Anan, (4) the Late Campanian Gaudryina lawai Anan n. sp. and the Early Eocene G. speijeri Anan, (5) Verneuilina iraqensis Anan n. sp. and the Early Eocene V. luxorensis Nakkady, (6) the Late Campanian Tritaxia longa Anan, n. sp. and the Early Eocene Tritaxia elongata (Haque).

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Section: Previous Studiesmentioning

confidence: 99%

Homeomorphy of some benthic foraminiferal species in the Southern Tethys

Anan¹

2023

JMEN

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“…However, the presence of Miosorites americanus and Annulosorites spiralis near the base of the Casupal Fm. in the mapping area restricts the age of this unit to the early Miocene (Albert-Villanueva, 2016; see also Banerjee, Yemane, & Johnson, 2000;BouDagher-Fadel, 2008;Butterlin, 1981;Hottinger, 2001;Seiglie, 1982;Seiglie, Grove, & Rivera, 1977; Serra-Kiel, Ferràndez-Cañadell, García-Senz, & Hernaiz Huerta, 2007).…”

Section: Southern Falcón Basinmentioning

confidence: 99%

“…The Churuguara Fm. is characterized by an early Miocene larger foraminifera association including Lepidocyclina favosa/undosa, Lepidocyclina canellei, Heterostegina antillea, Operculinoides panamensis, Miogypsina gunteri, M. cushmani, M. americanus and A. spiralis (Albert-Villanueva, 2016; see also Banerjee et al, 2000;BouDagher-Fadel, 2008;Butterlin, 1981;Cole, 1961;Hottinger, 2001;Seiglie, 1982;Seiglie et al, 1977;Serra-Kiel et al, 2007).…”

Section: Southern Falcón Basinmentioning

confidence: 99%

“…Corals appear interbedded within prodelta and delta front siliciclastic strata as patch mounts, as isolated colonies in life position embedded into a lutitic to sandy matrix, and as rubble. The presence of H. antillea, M. mexicana, M. gunteri, M. globulina, M. panamensis, M. americanus and A. spiralis indicate an early Miocene age (Albert-Villanueva, 2016; see also Banerjee et al, 2000;BouDagher-Fadel, 2008;Butterlin, 1981;Cole, 1961;Hottinger, 2001;Seiglie, 1982;Seiglie et al, 1977;Serra-Kiel et al, 2007).…”

Section: Northern Falcón Basinmentioning

confidence: 99%

“…This unit constitutes a southward prograding delta system deposited during the last phase of basin-filling. The presence of H. antillea, L. canellei and A. spiralis indicates an early Miocene age (Albert-Villanueva, 2016; see also Banerjee et al, 2000;BouDagher-Fadel, 2008;Butterlin, 1981;Cole, 1961;Hottinger, 2001;Seiglie, 1982;Seiglie et al, 1977;Serra-Kiel et al, 2007).…”

Section: Northern Falcón Basinmentioning

confidence: 99%

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Geology of the Falcón Basin (NW Venezuela)

et al. 2017

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This paper presents a geological map and cross-section of the Falcón Basin based both on published and unpublished work and on new data collected in the northern and southern basin margins. The geological map covers an area of 4600 km 2 at 1:100,000 scale. The crosssection is oriented NNW-SSE, traversing perpendicular to the main structures. In general, the structure of the study area results from the inversion of a graben (Oligocene-early Miocene back-arc basin), that started in the middle Miocene due to the convergence between the Caribbean and South American plates. The map, the cross-section and the observations made in the field have been used to generate a tectonostratigraphic reconstruction of the Falcón Basin. The Oligocene-early Miocene sedimentary succession mapped and described is relevant to the hydrocarbon exploration in the Caribbean and in the Gulf of Venezuela, where new hydrocarbon resources have recently been discovered (i.e. Perla gas field).

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A Note on the Homeomorphism of Three Soritid Genera (Foraminiferida)

Cited by 2 publications

References 0 publications

Homeomorphy of some benthic foraminiferal species in the Southern Tethys

Homeomorphy of some benthic foraminiferal species in the Southern Tethys

Geology of the Falcón Basin (NW Venezuela)

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