Takemura, Atsushi and Ling, Hsin Yi (1998): Taxonomy and phylogeny of the genus Theocorys (Nasselaria, Radiolaria) from the Eocene and Oligocene sequences in the Antarctic region

Leg/Site/Hole:
ODP 114
ODP 120
Identifier:
1999-038019
georefid

Creator:
Takemura, Atsushi
Hyogo University of Teacher Education, Geoscience Institute, Hyogo, Japan
author

Ling, Hsin Yi
Northern Illinois University, United States
author

Identification:
Taxonomy and phylogeny of the genus Theocorys (Nasselaria, Radiolaria) from the Eocene and Oligocene sequences in the Antarctic region
1998
Paleontological Research
Palaeontological Society of Japan, Tokyo, Japan
2
3
155-169
Taxonomic and phylogenetic investigations were carried out on the Eocene and Oligocene radiolarians assignable to the genus Theocorys from submarine sections of the Southern Indian and Southern Atlantic Oceans. Several well-preserved theoperid species previously described under the genera Calocyclas, Cyrtocapsella or Theocorys are now grouped into Theocorys, and their phylogenetic relationships are discussed. Five species are described, of which three are proposed as new. They are: T. kerguelensis sp. nov., T. minuta sp. nov., T. saginata sp. nov., T. robusta comb. nov. and T. semipolita comb. nov. In addition, another new species, Calocyclas (?) nakasekoi, is described.
English
Serial
Coverage:Geographic coordinates:
North:75.0000
West:-80.0000East: 147.0000
South:-60.0000

Invertebrate paleontology; Atlantic Ocean; biostratigraphy; Cenozoic; Circum-Antarctic region; correlation; Eocene; Indian Ocean; Invertebrata; Leg 114; Leg 120; new taxa; Ocean Drilling Program; Oligocene; Paleogene; phylogeny; Protista; Radiolaria; range; revision; taxonomy; Tertiary; Theocorys; Theocorys kerguelensis; Theocorys minuta; Theocorys robusta; Theocorys saginata; Theocorys semipolita;

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