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A New Anthaspidellid Sponge from the Silurian of Lake Timiskaming, Quebec

J. Keith Rigby
Journal of Paleontology
Vol. 47, No. 4 (Jul., 1973), pp. 801-804
Stable URL: http://www.jstor.org/stable/1303055
Page Count: 4
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A New Anthaspidellid Sponge from the Silurian of Lake Timiskaming, Quebec
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Abstract

The new lithistid sponge species Calycocoelia annulata is described from the Middle Silurian Thornloe Formation on Lake Timiskaming, Quebec. This, the first species of the genus described from Silurian rocks, is an annulate goblet-shaped form. It has the characteristic ladder-like skeletal structure of the Anthaspidellidae.

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