CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia? multiloculata Morrow 1934

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: pf_cat -> G -> Globorotalia -> Globorotalia multiloculata
Other pages this level: << < G. menardii neoflexuosa, G. menardii panda, G. mineacea, G. minuta, G. minutissima, G. miocenica mediterranea, G. miotumida explicationis, G. miozea, G. miozea acumarginata, G. miozea conoidea, G. miozea rifensis, G. miozea sphericomiozea, G. miroensis, G. mohleri, G. monmouthensis, G. multiloculata, G. munda, G. nagappai, G. nana pseudocontinuosa, G. nartanensis, G. naussi, G. neominutissima, G. nicobarica, G. nicolae, G. nicoli, G. obesa, G. occlusa, G. opima continuosa, G. opima nana, G. opima opima, G. orientalis> >>

Globorotalia multiloculata

Citation: Globorotalia? multiloculata Morrow 1934
Rank: Species
Type locality: Sec.31, T. 21 S., R. 22 W., Hodgeman County, Kansas
Type age (chronostrat): Latest Cenomanian
Type specimens: Plate 31, figures 3a-b, 5a; 75379
Type repository: Washington; USNM

Linked specimens: USNM-75379 USNM-75379

Current identification/main database link: Anaticinella multiloculata (Morrow, 1934)


Original Description
Test trochoid, biconvex, compressed; dorsal side strongly convex, ventral side moderately convex; chambers numerous, seven to nine in final whorl, very distinct, inflated, narrowly rounded but not keeled at their periphery, tending in the last whorl to be produced ventrally in the direction of the axis of coiling; umbilical area large and rather deep; sutures strongly depressed; wall finely perforate.

Size: Diameter 0.7 mm., thickness 0.3 m

Extra details from original publication
This species seems to be the most primitive of the three species of Globorotalia here described from the Greenhorn formation. It is evidently very close to Globigerina. Since the other two species are definitely not Globigerina, and yet all three species are obviously quite closely related, it seems best to consider this species in the same genus. There is a suggestion of the development of the keeled periphery of Globorotalia in the sharply rounded margin of the chambers appearing in edge view, about intermediate between Globorotalia greenhornensis and typical Globigerina. The similar aspect of the ventral side in these species is striking. G. multiloculata is quite common locally in the Greenhorn formation associated with the two species just described. It is easy to distinguish because of its numerous chambers and globogerine aspect with a narrowed peripher

References:

Morrow, A. L. (1934). Foraminifera and ostracoda from the Upper Cretaceous of Kansas. Journal of Paleontology. 8: 186-205. gs

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Globorotalia multiloculata compiled by the pforams@mikrotax project team viewed: 29-11-2020

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