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
Globigerinoides triloba altiapertura Bolli 1957 from: Bolli, H.M. (1957): Planktonic foraminifera from the Oligocene-Miocene Cipero and Lengua formations of Trinidad, B.W.I.. In: Studies in Foraminifery, Bulletin of the U.S. National Museum Vol. 215 Eds: Loeblich, A.R.Tappan, H.Beckmann, J.P.Bolli, H.M.Gallitelli, E.M.Troelsen, J.C. p. 97-123
.
Anonymous: Unedited TaxonConcept data
Notice: This catalogue page may contain unedited data.

Subspecies Globigerinoides triloba altiapertura Bolli 1957


Diagnosis / Definition:
Bolli (1957):
Shape of test trochospiral; equatorial periphery distinctly lobate (trilobate); axial periphery rounded. Wall calcareous, perforate, surface finely pitted. Chambers spherical; about 12, arranged in about 2 1/2 whorls; the 3 chambers of the last whorl increase rapidly in size. Sutures on spiral side between early chambers radial, later slightly curved and oblique, depressed; on umbilical side: radial, depressed. Umbilicus fairly narrow, deep. Primary aperture, a high, distinct arch, interiomarginal, umbilical; the last few chambers show one supplementary sutural aperture about opposite the primary aperture. Coiling random. Largest diameter of holotype 0.55 mm.
Discussion / Comments:
Bolli (1957):
Globigerinoides triloba altiapertura, new subspecies, is distinguished from G. triloba immatura Le Roy by having a larger, higher arched, primary aperture.
Systematics:

32
 Familia Globigerinidae
  Genus Globigerinoides
   Subspecies Globigerinoides triloba altiapertura
Synonym list:
Bolli (1957):
1957 Globigerinoides triloba altiapertura Bolli. - Bolli : pl. 25, figs. 7a-8, text-fig. 21, No. 3 new subspecies
Was used in synonym list of:
References:

Bolli,H.M. (1957):
Planktonic foraminifera from the Oligocene-Miocene Cipero and Lengua formations of Trinidad, B.W.I..
In: Studies in Foraminifery, Bulletin of the U.S. National Museum Vol. 215 Eds: Loeblich, A.R.Tappan, H.Beckmann, J.P.Bolli, H.M.Gallitelli, E.M.Troelsen, J.C. p. 97-123
Anonymous: Unedited TaxonConcept data
Creative Commons Attribution 2.5 License
This work is licensed under a Creative Commons Attribution 2.5 License.