A new aspidostomatid bryozoan from the Cape Melville Formation (Lower Miocene) of King George Island, West Antarctica

Fragments of large, bilamellar aspidostomatid bryozoan colonies occur in Early Miocene glaciomarine sedimentary sequences of the Cape Melville Formation, King George Island, South Shetland Islands, West Antarctica. Investigation of the morphological characters of this aspidostomatid cheilostome show...

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Bibliographic Details
Published in:Antarctic Science
Main Authors: HARA, URSZULA, CRAME, J. ALISTAIR
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 2004
Subjects:
Geology
Ecology, Evolution, Behavior and Systematics
Oceanography
King George Island
West Antarctica
South Shetland Islands
Cape Melville
Antarc*
Antarctic Science
Antarctica
Online Access:http://dx.doi.org/10.1017/s0954102004002159
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102004002159
Description
Summary:Fragments of large, bilamellar aspidostomatid bryozoan colonies occur in Early Miocene glaciomarine sedimentary sequences of the Cape Melville Formation, King George Island, South Shetland Islands, West Antarctica. Investigation of the morphological characters of this aspidostomatid cheilostome shows that it represents a new species, which is described herein as Aspidostoma melvillensis sp. n. A combination of the colony-growth pattern, inferred co-occurring biota and associated sedimentary structures indicates a comparatively deep-water, outer shelf palaeoenvironmental setting. This Miocene occurrence of Aspidostoma melvillensis sp.n. emphasizes a biogeographical link with adjacent Southern Hemisphere regions during the early Neogene.

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