Orcadia riedeli

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This article is about a genus of foraminifera. For the genus of fungi, see Orcadia (fungus). For other uses, see Orcadia (disambiguation).

Orcadia riedeli
Temporal range:
Ma
↓
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Phylum: Retaria
Subphylum: Foraminifera
Class: Globothalamea
Order:
Globigerinida
Family: Globigerinellidae
Genus:
Orcadia
Boltovskoy & Watanabe, 1982[1]
Species:
O. riedeli
Binomial name
Orcadia riedeli
(Rögl & Bolli, 1973) Boltovskoy & Watanabe, 1982[1]
Synonyms
  • Hastigerinella riedeli Rögl & Bolli, 1973
  • Hastigerinopsis riedeli (Rögl & Bolli, 1973) Poore, 1979
  • Berggrenia riedeli (Rögl & Bolli, 1973) Saito, Thompson & Breger, 1981

Orcadia riedeli is a

Globigerinida
.

Taxonomy

The species Hastigerinella riedeli, described in 1973, was transferred into a separate genus Orcadia in 1982 by

planktonic foraminifera placed it in the family Globigerinellidae.[3]

Description

Orcadia riedeli is a species characterized by a low trochospiral and thin

distal areas of the test chambers.[4]

Ecology & distribution

Orcadia riedeli is a

Antarctic Ocean. It has also been reported more recently in the Indian sector of the Antarctic Ocean, specifically in the subtropical front, where it may account for up to 7% of the total planktonic foraminiferal stock in the water surface. This indicates a potential expansion of the geographical range of O. riedeli, since early sampling campaigns of the Indian sector in the 1970s did not record this species.[5]

References

  1. ^ a b c Boltovskoy, Esteban; Watanabe, Silvia (1982). "Orcadia, nuevo género de foraminíferos planctónicos Antárticos" [Orcadia, new genus of Antarctic planktonic foraminifera]. Revista Española de Micropaleontología (in Spanish). 14 (1–3): 5–11.
  2. doi:10.5194/jm-41-29-2022
    .
  3. ISSN 2255-0550
    .
  4. doi:10.2113/gsjfr.14.2.101
    .
  5. doi:10.1016/j.marmicro.2017.08.004
    .
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