Alisphaera crostae sp. nov. (Prymnesiophyceae), a new extant coccolithophore from the Southwest Indian Ocean

被引:0
作者
Patil, Shramik [1 ]
Mohan, Rahul [1 ]
Jafar, Syed A. [2 ]
Gazi, Sahina [1 ]
Ghadi, Pooja [3 ]
机构
[1] Minist Earth Sci, Natl Ctr Polar & Ocean Res NCPOR, Vasco Da Gama 403804, Goa, India
[2] Flat 5-B Whispering Meadows,Haralur Rd, Bangalore 560102, India
[3] Goa Univ, Sch Earth Ocean & Atmospher Sci SEOAS, Taleigao Plateau 403206, Goa, India
关键词
Calcareous nannofossils; Coccolithophore; Indian Ocean; taxonomy; new species; AUSTRAL SUMMER; SOUTHERN; SECTOR; PRYMNESIACEAE; HAPTOPHYTA;
D O I
10.47894/mpal.70.5.02
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
The analysis of water samples collected during the MD218 CROTALE expedition (February-March, 2019), and the 4th Indian Southern Ocean Expedition (SOE) (January-February, 2010) (re-visited samples) resulted in the occurrence of a new coccolithophore species belonging to the genus Alisphaera, and is named Alisphaera crostae sp. nov. This new species appears monomorphic and shows distinctive morphological diff erences in terms of its coccolith size, flange structure, and nodules, compared to other known Alisphaera species. In this study, morphological differences between A. crostae and other Alisphaera species are illustrated and compared. We suggest that the genus Alisphaera may have a higher diversity and may possess a wider distribution than previously evidenced, which requires more careful observation.
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页数:10
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