The coralline algal genus Clathromorphum is a dominant calcifier in the rocky Subarctic
biogeographic region, stretching through the lower Arctic from the Labrador Sea to the
Bering Sea. Although commonly 2–10 cm in thickness, Clathromorphum can reach a
thickness of up to 50 cm while forming an annually layered structure that can reach currently
documented ages of up to 850 years. Geochemical and growth information archived in
annual growth bands of Clathromorphum sp. has been used to provide long time series of …

ABSTRACT Adey, Walter H., Jochen Halfar, and Branwen Williams. The Coralline Genus
Clathromorphum Foslie emend. Adey: Biological, Physi ological, and Ecological Factors
Controlling Carbonate Production in an Arctic-Subarctic Climate Archive. Smithsonian
Contributions to the Marine Sciences, number 40, iv+ 42 pages, 29 figures, 1 table, 2013.—
The coralline algal genus Clathromorphum is a dominant calcifier in the rocky Subarctic
biogeographic region, stretching through the lower Arctic from the Labrador Sea to the …