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Silurian sponges and some associated fossils from the Heceta Limestone, Prince of Wales Island, southeastern Alaska

Journal of Paleontology

By:
, , ,
DOI: 10.1666/06-047.1

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Abstract

A small faunule of hypercalcified agelasiid demosponges has been recovered from outcrops of the Silurian Heceta Formation on Prince of Wales Island in southeastern Alaska. Included are abundant Girtyocoeliana epiporata (Rigby and Potter, 1986), of the Girtyocoeliidae Finks and Rigby, 2004; fragments of Alaskaspongiella laminosa n. gen. and sp., Polyplacospongia nodosa n. gen. and sp., and Monolaminospongia gigantia n. gen. and sp., of the Auriculospongiidae Termier and Termier, 1977, and Cladospongia alaskensis n. gen. and sp., Virgulaspongia uniforma n. gen. and sp., and Stipespongia laminata n. gen. and sp. of the Preperonidellidae Finks and Rigby, 2004. Also included are a few fossils of uncertain taxonomic placement, including Turbospongia biperforata n. gen. and sp., along with a small, chambered, tubular fragment and several porous tubular stems that may be additional poriferans. Some isolated octactine-based heteractinid spicules were also recovered from the etched residues. Copyright ?? 2008, The Paleontological Society.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Silurian sponges and some associated fossils from the Heceta Limestone, Prince of Wales Island, southeastern Alaska
Series title:
Journal of Paleontology
DOI:
10.1666/06-047.1
Volume
82
Issue:
1
Year Published:
2008
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
91
Last page:
101
Number of Pages:
11