Morphology of encrusting and free living acervulinid Foraminifera: Acervulina, Gypsina, and Solenomeris, Palaeontology - MNHN - Muséum national d'Histoire naturelle Access content directly
Journal Articles Palaeontology Year : 1994

Morphology of encrusting and free living acervulinid Foraminifera: Acervulina, Gypsina, and Solenomeris, Palaeontology

Abstract

The generic identification of acervulinids is especially difficult due to a confused systematics. However, this family is of major interest because it comprises the main encrusting reef Foraminifera. Their close dependency on the substratum to which they are attached and their ability to develop various growth forms result in an irregular morphology and arrangement of the chambers. The ability of the Eocene acervulinid Solenomeris to build monospecific, kilometre-sized reefs has misled most previous workers to consider it as a red alga. The geometrical characteristics of the test of the main acervulinid general (Acervulina, Borodinia, Gypsina, Solenomeris) are analysed and discussed, based on previous descriptions and personal observations. This leads to some reliable and easily usable criteria for genera and species identification. Solenomeris is very close to Acervulina but can be distinguished by the form of the juvenile.
No file

Dates and versions

mnhn-02866793 , version 1 (12-06-2020)

Identifiers

  • HAL Id : mnhn-02866793 , version 1

Cite

Christine Perrin. Morphology of encrusting and free living acervulinid Foraminifera: Acervulina, Gypsina, and Solenomeris, Palaeontology. Palaeontology, 1994, 37 (2), pp.425-458. ⟨mnhn-02866793⟩
76 View
0 Download

Share

Gmail Facebook Twitter LinkedIn More