Fossil Newhousia imbricata (Dictyotales, Phaeophyceae) from Postglacial Coral Reef Deposits in Tahiti

Yasufumi Iryu

doi:10.2517/2015PR018

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Yasufumi Iryu¹

¹Institute of Geology and Paleontology, Graduate School of Science, Tohoku University, Aobayama, Sendai, Miyagi 980-8578, Japan (e-mail: ) iryu@m.tohoku.ac.jp

Abstract

The calcareous brown alga Newhousia imbricata (Dictyotales, Phaeophyceae) was found from postglacial reef deposits collected during Integrated Ocean Drilling Program Expedition 310 from Tahiti. The alga is composed of successive tiers of bilayered laminae, each consisting of a basal cuboid hypodermal cell bearing smaller epidermal cells (one or two in cross-sectional profiles and three or four in long-sectional profiles). The laminae are separated by extracellular cement. Modern N. imbricata is known only from the Hawaiian Islands; this is the first reported occurrence of fossil N. imbricata.

Citation Download Citation

Yasufumi Iryu "Fossil Newhousia imbricata (Dictyotales, Phaeophyceae) from Postglacial Coral Reef Deposits in Tahiti," Paleontological Research 20(1), 18-23, (1 January 2016). https://doi.org/10.2517/2015PR018

Received: 14 May 2015; Accepted: 1 June 2015; Published: 1 January 2016

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