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Systematics of a rare radiolarian - Coelodiceras spinosum Haecker (Sarcodina: Actinopoda: Phaeodaria: Coelodendridae)

Citation

Paterson, H and Pesant, S and Clode, P and Knott, B and Waite, AM, Systematics of a rare radiolarian - Coelodiceras spinosum Haecker (Sarcodina: Actinopoda: Phaeodaria: Coelodendridae), Deep-sea Research. Part 2: Topical studies in Oceanography, 54 pp. 1094-1102. ISSN 0967-0645 (2007) [Refereed Article]


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DOI: doi:10.1016/j.dsr2.2006.05.046

Abstract

We describe a specimen of Coelodiceras spinosum Haecker 1908 [Haecker, V., 1908. Tiefsee-Radiolarien. Wissenschaftliche ergebnisse der Deutschen Tiefsee-Expedition. 14, 1706] (Sarcodina: Actinopoda: Radiolaria: Phaeodaria: Coelodendridae) collected in a sediment trap deployed in the Indian Ocean, 300 NM WNW off Perth, Western Australia, updating Haecker's 1908 description. Our specimen was collected in the centre of a cold-core eddy at a depth of 300 m. The intact silica structure of the specimen lacked soft organic material, suggesting that the organism was dead when it entered the trap; the traps were deployed for 10 days and did not contain poison or preservative. In this paper, we expand the original description of C. spinosum by Haecker (1908) [Haecker, V., 1908. Tiefsee-Radiolarien. Wissenschaftliche ergebnisse der Deutschen Tiefsee-Expedition. 14, 1706], using Scanning Electron Microscopy (SEM). Our specimen had three frenula and a short rhinocanna, differing from the single frenulum and long rhinocannae described by Haecker (1908) [Haecker, V., 1908. Tiefsee-Radiolarien. Wissenschaftliche ergebnisse der Deutschen Tiefsee-Expedition. 14, 1706].

Item Details

Item Type:Refereed Article
Keywords:Indian Ocean; Upwelling; Radiolaria; Silica flux; Zoogeography; Micropaleontology
Research Division:Biological Sciences
Research Group:Zoology
Research Field:Invertebrate Biology
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Marine Flora, Fauna and Biodiversity
Author:Paterson, H (Dr Harriet Paterson)
ID Code:59768
Year Published:2007
Deposited By:Research Division
Deposited On:2009-12-17
Last Modified:2014-05-28
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