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Species Parasubbotina prebetica Martinez-Gallego & Cremades 1978 | ||||||
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| Diagnosis / Definition: | ||||||
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Pearson et al. (2006): DESCRIPTION. Type ofwall: Cancellate, normal perforate, high porosity, reticulated Clavigerinella-type wall texture. Test morphology: Very low trochospiral, highly lobulate, 4-41/2 chambered symmetrical test with elongate, globular to cylindrical chambers; in spiral view 4-41/2 globular/cylindrical chambers, the last 4 of almost equal size, forming a pinwheel shape of 4 opposing chambers; in umbilical view identical to the spiral view in arrangement of ultimate whorl chambers, umbilicus small, shallow, aperture a low umbilical-extraumbilical arch, bordered by broad lip; in edge view compressed, parallel sided, chambers spherical in shape. Size: No information available. |
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| Discussion / Comments: | ||||||
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Pearson et al. (2006): DISTINGUISHING FEATURES.- Identified by the symmetrical, compressed test with elongate, globular to cylindrical chambers. The radially elongate chambers are reminiscent of Clavigerinella, but this species is distinguished from that genus by the trochospiral coiling mode. DISCUSSION.- This species has only one known occurrence. Its high porosity, reticulated sacculifer-type wall texture indicates that is a member ofparasubbotina and is apparently an early evolutionary offshoot from P. inaequispira with a short stratigraphic range. PHYLOGENETIC RELATIONSHIPS.- Parasubbotina prebetica appears to have developed from P. inaequispira in Lower Eocene Zone E5. GEOGRAPHIC DISTRIBUTION.- Known only from Spain. The morphology is convergent with other cold water high productivity species. STABLE ISOTOPIC PALEOBIOL0GY.- No data available. |
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| Systematics: | ||||||
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35 Ordo Foraminiferida Superfamilia Globigerinaceae Familia Globigerinidae Genus Parasubbotina Species Parasubbotina prebetica |
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| Synonym list: | ||||||
| Pearson et al. (2006): 1978 Globigerina prebetica Martinez-Gallego & Cremades. - Martinez-Gallego & Cremades : pl. 1; fig. 1-3 (holotype), fig. 4-6 (paratype) [lower
Eocene Globorotalia aragonensis Zone, Rincon de
Santana hills, Prebética Mountains, Spain]
2006 Parasubbotina prebetica Martinez-Gallego & Cremades. - Pearson et al. : p.93 pl. 5.11; fig. 16-18 (Pl. 5.1 1, Figs. 16- 18: reillustration of holotype of
Globigerina prebetica Martinez-Gallego and
Cremades)
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| Specimen: | ||||||
| Collection of the Museum of the Departamento de Paleontologia, Inventory number: MC25 Collection of the Museum of the Departamento de Paleontologia, Inventory number: MC26 |
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| References: | ||||||
Martinez-Gallego,J.. and Cremades,J.. (1978): Pearson,P.N.; Olsson,R.K.; Hemleben,C.; Huber,B.T. and Berggren,W.A. (2006): |
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| Anonymous: Unedited TaxonConcept data | ||||||
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