Catapsydrax dissimilis


Classification: pf_cenozoic -> spinose -> Globigerinidae -> Catapsydrax -> Catapsydrax dissimilis
Sister taxa: C. dissimilis, C. globiformis, C. africanus, C. howei, C. unicavus, C. sp.,

Taxonomy

Citation: Catapsydrax dissimilis Cushman & Bermudez 1937
Rank: Species
Basionym: Globigerina dissimilis
Synonyms: N.B. This is a commonly recognized species in the Oligocene and lower Miocene; here we present an abbreviated synonymy list.

Catalog entries: Globigerina dissimilis;
Globigerina simulans;

Type images:

NB The short diagnoses are used in the tables of daughter-taxa to act as quick summaries of the differences between e.g. species of one genus. They have initially been copied from the diagnostic characters/distinguishing features sections of the Eocene and Paleocene Atlases, they will be edited as the site is developed.

Description

Character matrix

test outline:Lobatechamber arrangement:Trochospiraledge view:Inequally biconvexaperture:Umbilical
umb chamber shape:Globularcoiling axis:Lowperiphery:N/Aaperture border:Thin lip
sp chbr shape:Globularumbilicus:Narrowperiph margin shape:Moderately roundedaccessory apertures:Infralaminal
umbilical or test sutures:Moderately depressedumb depth:Deepwall texture:Cancellateshell porosity:Finely Perforate: 1-2.5µm
spiral sutures:Moderately depresseddiameter mm:width mm:breadth mm:
final-whorl chambers:4.0-4.0

Biogeography and Palaeobiology


Geographic distribution:
Aze et al. 2011 summary: Low to middle latitudes; based on Kennett & Srinivasan (1983)

Isotope paleobiology:
Aze et al. 2011 ecogroup 4 - Open ocean sub-thermocline. Based on very light δ13C and very heavy δ18O. Sources cited by Aze et al. 2011 (appendix S3): Keller (1985); Pearson et al. (1997b); Wade et al. (2007); Pearson & Wade (2009).

Most likely ancestor: Catapsydrax unicavus - at confidence level 4 (out of 5). Data source: Olsson et al. 2006 f5.1.

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within N6 zone (17.54-17.59Ma, top in Burdigalian stage). Data source: Kennett & Srinivasan 1983
First occurrence (base): within Late Eocene Sub-Epoch (33.89-37.75Ma, base in Priabonian stage). Data source: Olsson et al. 2006 f5.1

Plot of occurrence data:

Primary source for this page: Olsson et al. 2006 - Atlas of Eocene Planktonic Foraminifera, chapter 5, p. 71

References:

Bermudez, P.J., (1937). Nuevas especies de Foraminiferos del Eoceno de las cercanias de Guanajay, provincia Pinar del Rio, Cuba. Memorias de la Sociedad Cubana de Historia Natural, 11(4): 237-248.

Bermudez, P.J., (1961). Contribucion al estudio de las Globigerinidea de la region Caribe-Antillana (Paleoceno-Reciente). Mem. III Congreso Geol. Venez. Editorial Sucre, Caracas, 1119-1393 pp.

Blow, W.H. & Banner, F.T., (1962). The mid-Tertiary (Upper Eocene to Aquitanian) Globigerinaceae. In: Eames, F.E. et al. (Editors), Fundamentals of mid-Tertiary Stratigraphical Correlation. Cambridge University Press, Cambridge, pp. 61-151.

Cushman, J.A. & Bermudez, P.J., (1937). Futher new species of foraminifera from the Eocene of Cuba. Contributions from the Cushman Laboratory for Foraminiferal Research, 13(1): 1-29.

Fleisher, R.L., (1974). Cenozoic planktonic foraminifera and biostratigraphy, Arabian Sea, Deep Sea Drilling Project, Leg 23A. Initial Reports of the Deep Sea Drilling Project, 23: 1001-1072.

Huber, B.T., (1991). Paleogene and early Neogene planktonic foraminifer biostratigraphy of ODP Leg 119 Sites 738 and 744, Kerguelen Plateau (southern Indian Ocean). Proceedings of the Ocean Drilling Program, Scientific Results, 119: 427-449.

Kennett, J.P. & Srinivasan, M.S., (1983). Neogene Planktonic Foraminifera. Hutchinson Ross Publishing Co., Stroudsburg, Pennsylvania, 1-265 pp.

Loeblich, A.R., Jr. & Tappan, H., (1957). Planktonic foraminifera of Paleocene and early Eocene Age from the Gulf and Atlantic coastal plains. In: Loeblich, A.R., Jr. et al. (Editors), Studies in Foraminifera, U.S. National Museum Bulletin 215. U.S. Government Printing Office, Washington, D.C., pp. 173-198.

Loeblich, A.R. & Tappan, H., (1957). Woodringina, a new foraminiferal genus (Heterohelicidae) from the Paleocene of Alabama. Journal of the Washington Academy of Sciences., 47: 39-40.

Olsson, R.K.; Pearson, P.N. & Huber, B.T., (2006). Taxonomy, biostratigraphy, and phylogeny of Eocene Catapsydrax, Globorotaloides, Guembelitrioides, Paragloborotalia, Parasubbotina, and Pseudoglobigerinella n. gen. In: Pearson, P.N. et al. (Editors), Atlas of Eocene Planktonic Foraminifera, Cushman Foundation Special Publication 41. Cushman Foundation Special Publication. Allen Press, Lawrence, Kansas, pp. 67-110.

Spezzaferri, S. & Premoli Silva, I., (1991). Oligocene planktonic foraminiferal biostratigraphy and paleoclimatic interpretation from Hole 538A, DSDP Leg 77, Gulf of Mexico. Palaeogeography, Palaeoclimatology, Palaeoecology, 83: 217-263.

Spezzaferri, S., (1994). Planktonic foraminiferal biostratigraphy and taxonomy of the Oligocene and lower Miocene in the oceanic record. An overview. Palaeontographia Italica, 81: 1-187.


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Catapsydrax dissimilis compiled by the pforams@mikrotax project team viewed: 13-12-2017

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