Taxon Concept provided by
  Home |   Search

Click on a letter below to get a list of species:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z all
Parasubbotina prebetica Martinez-Gallego & Cremades 1978 from: Pearson, P.N.Olsson, R.K.Hemleben, C.Huber, B.T.Berggren, W.A. (2006): Atlas of Eocene Planktonic Foraminifera. p. 1-513
.
Anonymous: Unedited TaxonConcept data
Notice: This catalogue page may contain unedited data.

Species Parasubbotina prebetica Martinez-Gallego & Cremades 1978


Diagnosis / Definition:
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.
Discussion / Comments:
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.
Systematics:

35
 Ordo Foraminiferida
  Superfamilia Globigerinaceae
   Familia Globigerinidae
    Genus Parasubbotina
     Species Parasubbotina prebetica
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)
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
References:

Martinez-Gallego,J.. and Cremades,J.. (1978):
Globigerina (Eoglobigerina) preheticu; nueva especie de foraminifero planctonico del Eoceno Inferior . Revista Espafiola de Micropaleontologia Vol. 11 p. 95-98

Pearson,P.N.; Olsson,R.K.; Hemleben,C.; Huber,B.T. and Berggren,W.A. (2006):
Atlas of Eocene Planktonic Foraminifera. p. 1-513
Anonymous: Unedited TaxonConcept data
Creative Commons Attribution 2.5 License
This work is licensed under a Creative Commons Attribution 2.5 License.