Globigerinatheka barri Brönnimann 1952 from: Van Eijden, A.J.M.Smit, J. (1991): Eastern Indian Ocean Cretaceous and Paleogene quantitative biostratigraphy. In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 121 Eds: Weissel, J.Peirce, J.Taylor, E.Alt, J. p. 77-123 . |
Notice: This catalogue page may contain unedited data.
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Species Globigerinatheka barri Brönnimann 1952 |
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Diagnosis / Definition: |
Pearson et al. (2006):
DESCRIPTION.
Type of wall: Spinose, cancellate, with
cylindrical pores, slightly funnelled in final stage, about
0.04 mm in diameter.
Test morphology: Test subglobular to globular;
low to medium high trochospire in the first two whorls,
then streptospiral in the last whorl consisting of four
subglobular chambers; last chamber inflated covering
the umbilical area of previous chambers; primary
aperture not visible in the adult, instead there are three
rather small semicircular secondary apertures at the
intersection of the sutures between the three chambers
of the last whorl and the base of the last chamber;
secondary apertures mainly covered by small bullae each
of which may possess three small subcircular openings.
Size: maximum diameter of the test, including
the bullae, measured in two individuals, is 0.35 mm and
0.37 mm. |
Discussion / Comments: |
Van Eijden & Smit (1991):
Remarks. As this species is rare and always co-occurs with G. subconglobata (Shutskaya, 1958), of which it may be a variety, we counted it as that species.
Pearson et al. (2006):
DISTINGUISHTNG FEATURES.-
Globigerinatheka
barri is characterized by its numerous secondary
apertures with bullae. It differs from G. mexicana in
having fewer chambers in the first whorl which are
arranged in a slightly higher trochospire, more depressed
sutures throughout the test, and a smaller flatter last
chamber which occupies a maximum of one third of the
entire test (instead of half of it, as in G. mexicana). Even though several features, like the secondary apertures, are masked by numerous bullae, G. barri differs from G. kugleri in having the test nearly globular instead of roughly subtriangular, a less lobate and more compact outline, subcircular apertures instead of rather wide low arches, and common bullae with subcircular accessory apertures.
DISCUSSION.-
In the original drawings of
Globigerinatheka barri Brönnimann ( 1 952) the
specimen in text-figs. 3d-f does not have bullae, and is
more consistent with G. kugleri. Bolli (1972) reported
that G. barri is "almost identical" with G. mexicana
except for the lack of bullae in the latter. For this reason,
he considered barri as a subspecies of G. mexicana.
However, as reported above, and in agreement with Blow
(1979), G. barri differs from G. mexicana in having a
shorter, slightly higher initial spire, sutures that are more
depressed and a smaller flatter last chamber.
The specimen identified by Samanta (1970, pl.
2, fig. 16) as G. index shows a coiling mode that is close
to that of G. barri, to which it is here attributed, even
though it is devoid of bullae.
PHYLOGENETIC RELATT0NSHTPS.-
Saito (1 962)
and Bolli (1972) suggested that G. barri may have
evolved from G. subconglobata. However, Bolli (1972,
p. 114) in the reconstruction of the globigerinathekid
phylogenetic tree proposed mexicana as ancestral to
barri, from which he suggested kugleri evolved; this
relationship is rejected here.
GEOGRAPHIC DISTRIBUTION.-
Common in low and middle latitudes.
STABLE ISOTOPE PALEOBIOL0GY.-
No data available. |
Systematics: |
24 Genus Clavigerinella
Species Globigerinatheka barri
32 Ordo Foraminiferida
Familia Globigerinidae
Genus Globigerinatheka
Species Globigerinatheka barri
35 Ordo Foraminiferida
Superfamilia Globigerinaceae
Familia Globigerinidae
Genus Globigerinatheka
Species Globigerinatheka barri
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Synonym list: |
Bolli (1957):
Van Eijden & Smit (1991):
Pearson et al. (2006):
p 1952 Globigerinatheka barri Brönnimann. - Brönnimann : p.27 text-fig. 3a-c (holotype); 3g, h [upper Eocene, Mount Moriah Fm., Harmony Hall, Well 2, Trinidad]; (not text-fig. 3d-f = G. kugleri)
1957 Globigerinatheka barri Brönnimann. - Bolli et al. : pl. 7; fig. 12a-c [middle Eocene, Navet Fm., Trinidad]
1957 Globigerinatheka barri Brönnimann. - Bolli : p.166 pl. 37; fig. 8, 9 [middle Eocene Porticulasphaera mexicana Zone, Navet Fm., Trinidad]
1970 Globigerinatheka barri Brönnimann. - Mohan & Soodan : pl. 1; fig. 6 [middle Eocene Orbulinoides beckmanni Zone, Kutch, India]
1970 Globigerapsis index Finlay. - Samanta : pl. 2; fig. 16 [middle Eocene Orbulinoides beckmanni Zone, Lakhpat Cutch, India]; [not Finlay, 1939]
non 1970 Globigerinatheka barri Brönnimann. - Baumann : pl. 3; fig. 1 [middle Eocene Globigerapsis mexicana Zone, Scalette
Section, Umbria, Italy] (= G. euganea)
? 1971 Globigerapsis mexicana Cushman. - Toumarkine : pl. 3; fig. 8-10 [upper Eocene Globigerapsis semiinvoluta Zone, Halimba borehole, Bakony, Hungary]; [Not Cushman, 1925]
non 1971 Globigerinatheka barri Brönnimann. - Toumarkine : pl. 3; fig. 1-4 [fig. l, upper Eocene Globigerapsis
semiinvoluta Zone; figs. 2-3, middle Eocene
Truncorotaloides rohri Zone, Halimba borehole, Bakony,
Hungary] (= G. mexicana)
1972 Globigerinatheka mexicana barri Brönnimann. - Bolli : p.128 text-fig. 18-20 (holotype refigured);
text-fig. 21-23 (from Bolli and others, 1957);
pl. 1, fig. 18-21 [middle Eocene Globigerinatheka subconglobata Zone (figs. 18-1 9) and Orbulinoides beckmanni Zone (fig. 2 l),
Possagno Section, northern Italy];
pl. 2, fig. 8-20 [middle
Eocene Orbulinoides beckmanni Zone, Navet Fm.,
Trinidad]
1972 Globigerinatheka index tropicalis Blow & Banner. - Bolli : pl. 3; fig. 14-15 [upper Eocene Globigerinatheka semiinvoluta Zone Zone, Navet Fm., Trinidad]; [Not Blow and Banner, 1962
1975 Globigerinatheka barri Brönnimann. - Stainforth et al. : fig. 37.1, 3 (from Bolli, 1957);
fig. 37.4-6 (from Bolli, 1972)
1975 Globigerinatheka mexicana barri Brönnimann. - Toumarkine : pl. 4; fig. 5 [middle Eocene Globorotalia lehneri to Truncorotaloides rohri
Zone, DSDP Site 305, Shatsky Rise, northwest Pacific Ocean]
1977 Globigerinatheka mexicana barri Brönnimann. - Poore & Brabb : pl. 4, fig. 13-4;
pl. 7, fig. 3 [middle Eocene Zones P13-P14, San Lorenzo Fm.,
California]
1978 Globigerinatheka mexicana barri Brönnimann. - Toumarkine : pl. 4, fig. 8 [middle Eocene Globorotalia lehneri to Truncorotaloides rohri Zone, DSDP Site 360, South Atlantic Ocean];
pl. 4, fig. 9 [upper Eocene Globigerinatheka semiinvoluta Zone, DSDP Site 363, South Atlantic Ocean];
pl. 4, fig. 11 [middle Eocene Hantkenina aragonensis to Globorotalia lehneri Zone, DSDP Site 363, South Atlantic Ocean]
1978 Globigerinatheka mexicana mexicana Cushman. - Toumarkine : pl. 4, fig. 6 [middle Eocene Orbulinoides beckmanni Zone, DSDP Site 363, South Atlantik Ocean];
pl. 4, fig. 7 [middle Eocene Truncorotaloides rohri Zone, DSDP Site 363, South Atlantic Ocean] [Not Cushman, 1925]
1979 Globigerinatheka barri Brönnimann. - Blow : p.866 pl. 241; fig. 9 [upper Eocene Zone P15, Sample FCRM 1644, Lindi area, Tanzania]
1980 Globigerinatheka barri Brönnimann. - Salaj : pl. 26, fig. 9 [middle Eocene Zone P13, Enfidaville, Tunisia];
pl. 27, fig. 7-9, 12 [?Zone P1 5, Dj. Fkirine, Tunisia]
1983 Globigerinatheka mexicana barri Brönnimann. - Toumarkine : pl. 20, fig. 18-22, 28 [upper Eocene
Zone P15, DSDP Site 363, South Atlantic Ocean];
fig. 23-27 (from Bolli, 1972);
fig. 29a-c (from Bolli and others, 1957)
non 1983 Globigerinatheka barri Brönnimann. - Pujol : pl. 8; fig. 12 [upper Eocene Zone PIS-16, DSDP Hole 516F, Rio
Grande Rise, South Atlantic Ocean] (= G. euganea)
? 1985 Globigerinatheka barri Brönnimann. - Snyder & Waters : pl. 5; fig. 1 [DSDP Site 549A, Goban Spur, eastern North Atlantik Ocean]
1985 Globigerinatheka barri Brönnimann. - Snyder & Waters : pl. 5; fig. 3 [DSDP Hole 549A, Goban Spur, eastern North Atlantic Occan] (= G.
luterbacheri).
? 1991 Globigerinatheka barri Brönnimann. - Huber : p.440 pl. 7; fig. 16 [upper Eocene Zone AP12, ODP Hole 738B, Kerguelen Plateau, south Indian Ocean]
1994 Globigerinatheka mexicana barri Brönnimann. - Nishi & Chaproniere : pl. 2; fig. 25-26 [upper Eocene Zones P15/16, DSDP Hole 841 B, southwest Pacific Ocean]
2003 Globigerinatheka mexicana barri Brönnimann. - Warraich & Nishi : pl. 2; fig. 8a-b [middle Eocene Zone P12, Zinda Pir West Section, Indus Basin, Pakistan]
2006 Globigerinatheka barri Brönnimann. - Pearson et al. : p.176 pl. 7.2; fig. 1-15 (Pl. 7.2, Figs. 1,2: new SEMs of holotype of
Globigerinatheka barri Brönnimann)
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Was used in synonym list of: |
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Specimen: |
Cushman Collection - Smithsonian Museum of Natural History, Washington, D.C., Inventory number: USNM 3919
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References: |
Brönnimann,P. (1952): Trinidad Paleocene and lower Eocene Globigerinidae . Bulletins of American paleontology Vol. 34(143) p. 1-34
Brönnimann,P. (1952): Globigerinoita and Globigerinatheka, new genera from the Tertiary of Trinidad, B.W.I. . Contributions from the Cushman Foundation for Foraminiferal Research Vol. 3 p. 25-28
Beckmann,J.P. (1953): Die Foraminiferen der Oceanic Formation (Eocaen-Oligocaen) von Barbados, Kl. Antillen . Ecoglae geologicae Helvetiae Vol. 46 p. 301-412
Bolli,H.M.; Loeblich,A.R. and Tappan,H. (1957): The Planktonic foraminiferal families Hantkeninidae, Orbulinidae, Globorotaliidae, and Globotruncanidae . U.S. National Museum Bull. Vol. 215 p. 3-50
Bolli,H.M. (1957): Planktonic Foraminifera from the Eocene Navet and San Fernando formations of Trinidad, B.W.I. . Bull. U.S. natl. Mus. Vol. 215 p. 155-172
Eckert,H.R.. (1963): Die obereeozaen Globigerinen-Schiefer (Stadund Schimbergerschiefer) zwischen Pilatus und Schrattenfluh . Eclogae Geologicae Helvetiae Vol. 56 p. 1001-1072
Baumann,P.. (1970): Mikropalaentologische und stratigraphische Untersuchungen der obereozaenen-oligozaenen Scaglia im zentralen Apennin (Italien) . Eclogae Geologicae Helvetiae Vol. 63 p. 1133-1211
Samanta,B.K. (1970): Middle Eocene Planktonic Foraminifera from Lakhpat, Cutch, Western India . Micropaleontology Vol. 16
Mohan,M.. and Soodan,K.S.. (1970): Middle Eocene planktonic foraminiferal zonation of Kutch, India . Micropaleontology Vol. 16 p. 37-46
Jenkins,D.G. (1971): New Zealand Cenozoic Planktonic Foraminifera . New Zealand Geological Survey Paleontological Bulletin Vol. 42
Postuma,J.A. (1971): Manual of Planktonic Foraminifera. p. 422 pp
Toumarkine,M. (1971): Etude des Foraminiféres planctoniques de deux sondagcs (H-S49 et PGYT-31) dans 1' Eocéne de la Montagne du Bakony (Transdanubie, Hongric) . Annales Instituti Geologici Publici Hungarici Vol. 54 p. 283-299
Bolli,H.M. (1972): The Genus Globigerinatheka Brönnimann . Journal of Foraminiferal Research Vol. 2 p. 109-136
Toumarkine,M. (1975): Middle and Late Eocene planktonic foraminifera from the northwestern Pacific, Leg 32 of the Deep Sea Drilling Project. In: Initial Reports of the Deep Sea Drilling Project Vol. 32 Eds: Larson, R.L.Moberly, R. p. 735-751
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Pujol,C. (1983): Cenozoic Planktonic Foraminiferal Biostratigraphy of the Southwestern Atlantic (Rio Grande Rise): Deep Sea Drilling Project Leg 72. In: Initial Reports of the Deep Sea Drilling Project Vol. 72 Eds: Barker, P.F.Johnson, D.A. p. 623-673
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Van Eijden,A.J.M. and Smit,J. (1991): Eastern Indian Ocean Cretaceous and Paleogene quantitative biostratigraphy. In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 121 Eds: Weissel, J.Peirce, J.Taylor, E.Alt, J. p. 77-123
Nishi,H.. and Chaproniere,G.C.H. (1994): Eocene-Oligocene subtropical planktonic foraminifers at Site 841. In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 135 Eds: Hawkins, J..Parson, L..Allan, J..others p. 245-266
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