Globanomalina chapmani


Classification: pf_cenozoic -> smooth non-spinose -> Hedbergellidae -> Globanomalina -> Globanomalina chapmani
Sister taxa: G. australiformis, G. luxorensis, G. ovalis, G. imitata, G. planocompressa, G. planoconica, G. chapmani, G. pseudomenardii, G. ehrenbergi, G. compressa, G. archeocompressa, G. sp.,

Taxonomy

Citation: Globanomalina chapmani (Parr 1938)
Rank: Species
Basionym: Globorotalia chapmani
Synonyms:
Taxonomic discussion: Haig et al.'s (1993) illustrations of the holotype, paratypes, and topotypes taken by SEM has clarified the morphologic characters of this species. It is clear from these illustrations that Anomalina luxorensis Nakkady (1951), Globanomalina ovalis var. lakiensis Haque (1956), the form identified by Subbotina (1953, pl. 16: fig. 12a-c) as Globorotalia membranacea (Ehrenberg, 1854), and the form identified by Bolli (1957a, pl. 20: figs. 11-13) as Globorotalia elongata (Glaessner, 1937a) should be placed in the synonomy of G. chapmani. In addition, Globorotalia troelseni Loeblich and Tappan (1957a) and the form identified by Hillebrandt (1962, pl. 12: fig. 3a-c) as Globorotalia ehrenbergi Bolli (1957a) are 5-chambered, compressed, smooth-walled forms that can be
placed in G. chapmani. Globanomalina chapmani is a common species in upper Paleocene assemblages. [Olsson et al. 1999]

Catalog entries: Anomalina luxorensis;
Globanomalina ovalis lakiensis; Globorotalia chapmani;
Globorotalia troelseni;

Type images:

Short diagnosis: Test compressed, periphery pinched with a thickened imperforate band. 5-6 rapidly enlarging chambers in final whorl.

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


Diagnostic characters: This species is identified by its compressed test, pinched periphery with a thickened imperforate band, and the rapidly enlarging chambers. The number of chambers in the ultimate whorl is typically 5 but can range up to 6. The test walls are smooth with occasional small pustule buildups in the umbilical area and on the inner spiral area. [Olsson et al. 1999]

Character matrix

test outline:Ellipticalchamber arrangement:Trochospiraledge view:Equally biconvexaperture:-
umb chamber shape:Inflatedcoiling axis:Lowperiphery:N/Aaperture border:Thin lip
sp chbr shape:Inflatedumbilicus:Narrowperiph margin shape:Moderately roundedaccessory apertures:None
umbilical or test sutures:Moderately depressedumb depth:Deepwall texture:Smoothshell porosity:-
spiral sutures:Moderately depresseddiameter mm:0.65width mm:-breadth mm:-
final-whorl chambers:5.0-6.0

Biogeography and Palaeobiology


Geographic distribution: Worldwide in the middle and high latitudes. [Olsson et al. 1999]
Aze et al. 2011 summary: Cosmopolitan in middle to high latitudes; based on Olsson et al. (1999)

Isotope paleobiology: Globanomalina chapmani has ∂18O and ∂13C similar to Parasubbotina varianta, S. triloculinoides, and G. pseudomenardii. The species has distinctly more positive ∂18O and more negative ∂13C than Morozovella ,Acarinina,and Igorina. [Olsson et al. 1999]
Aze et al. 2011 ecogroup 3 - Open ocean thermocline. Based on light δ13C and relatively heavy δ18O. Sources cited by Aze et al. 2011 (appendix S3): Olsson et al. (1999)

Phylogenetic relations: Globanomalina chapmani is a member of the smooth-walled imperforate periphery lineage and evolved from G. ehrenbergi (Bolli) in the lower part of Zone P4. [Olsson et al. 1999]

Most likely ancestor: Globanomalina ehrenbergi - at confidence level 4 (out of 5). Data source: Olsson et al. 1999, fig 5a.

Biostratigraphic distribution

Geological Range:
Notes: Within Zone P3 to Zone P6. [Olsson et al. 1999]
Last occurrence (top): in mid part of E3 zone (50% up, 54.9Ma, in Ypresian stage). Data source: Olsson & Hemleben 2006, fig14.1
First occurrence (base): at base of P4a subzone (0% up, 60.7Ma, in Selandian stage). Data source: Olsson et al. 1999, fig 5a

Plot of occurrence data:

Primary source for this page: Olsson et al. 1999 - Atlas of Paleocene Planktonic Foraminifera, p. 39

References:

Berggren Olsson & Reyment 1967 [sorry, not in our bibliography yet]

Bolli, H.M., (1957). The genera Globigerina and Globorotalia in the Paleocene-Lower Eocene Lizard Springs Formation of Trinidad. 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. 61-82.

Haig Griffin & Ujetz 1993 Nakkady [sorry, not in our bibliography yet]

Haque, A.F.M.M., (1956). The smaller foraminifera of the Ranikot and the Laki of the Nammal gorge, Salt Range. Memoir of the Pakistan Geological Survey, 1: 1-300.

Hillebrandt von, A., (1962). Das Paleozän und seine Foraminiferenfauna im Becken von Reichenhall und Salzburg. Bayerische Akademie der Wissenschaften Mathematisch-Naturwissenschaftliche Klasse, Abhandlungen, Neue Folge, 108: 1-182.

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.

Huber, B.T., (1991). Paleocene and Early Neogene Planktonic Foraminifer Biostratigraphy of Sites 738 and 744, Kerguelen Plateau (Southern Indian Ocean). Proceedings of the Ocean Drilling Program, Scientific Results, 119: 427-449.

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.

McGowran, B., (1964). Foraminiferal Evidence for the Paleocene Age of the King's Park Shale (Perth Basin, Western Australia). Journal of the Royal Society of Western Australia, 47: 81-86.

Nederbragt, A.J. & van Hinte, J.E., (1987). Biometric Analysis of Planorotalites pseudomenardii (Upper Paleo- cene) at Deep Sea Drilling Site 605, Northwestern Atlantic. Initial Reports of the Deep Sea Drilling Project., 93: 577-592.

Olsson, R.K.; Hemleben, C.; Berggren, W.A. & Huber, B.T., (1999). Atlas of Paleocene Planktonic Foraminifera. Smithsonian Contributions to Paleobiology. Smithsonian Institution Press, Washington, DC, 1-252 pp.

Parr, W.J., (1938). Upper Eocene Foraminifera from Deep Borings in King's Park, Perth, Western Australia. Journal of the Royal Society of Western Australia, 24: 69-101.

Pujol, C., (1983). Cenozoic planktonic foraminiferal biostratigraphy of the South-Western Atlantic (Rio Grande Rise): Deep Sea Drilling Project Leg 72. Initial Reports of the Deep Sea Drilling Project, 72: 623-673.

Speijer, R.P. & Samir, A.M., (1997). Globanomalina luxorensis, a Tethyan biostratigraphic marker of latest Paleocene global events. Micropaleontology, 43: 51-62.

Subbotina, N., (1953). Foraminiferes fossiles d'URSS Globigerinidae, Globorotaliidae, Hantkeninidae. Bureau de Recherches Geologiques et Minieres, 2239: 1-144.

Toumarkine, M. & Luterbacher, H., (1985). Paleocene and Eocene planktic foraminifera. Plankton Stratigraphy. Cambridge Univ. Press, Cambridge, 87-154 pp.


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Globanomalina chapmani compiled by the pforams@mikrotax project team viewed: 23-11-2017

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