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Current identification/main database link: Acarinina nitida (Martin 1943)
Original Description
Size:
Extra details from original publication
Cushman and Stone's well-figured specimen was reported from the Chacra formation of the La Brea-Pariias property, where it is sometimes larger than the Pale Greda holotype. However, G. pseudobulloides Plummer is composed of five and sometimes six highly ventricose chambers and does not agree closely with the Pale Greda or Chacra forms. There are also more compressed variants of G. stonei present in both the Chacra and Pale Greda formations. These range through all intermediate stages toward the end form which differs from the typical G. stonei in its more tightly coiled globorotalid test with three and one-half to four more appressed chambers, a less lobulate periphery, and a smaller umbilicus.
Both end types and all transitional forms of G. stonei are fairly common throughout the Pale Greda formation.
Editors' Notes
Globigerina stonei compiled by the pforams@mikrotax project team viewed: 11-10-2024
Short stable page link: https://mikrotax.org/pforams/index.php?id=130683 Go to Archive.is to create a permanent copy of this page - citation notes |
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