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sloth unleashed

@mudwerks / mudwerks.tumblr.com

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'The zoology of Captain Beechey's voyage / compiled from the collections and notes made by Captain Beechey^, the officers and naturalist of the expedition, during a voyage to the Pacific and Behring's Straits performed in His Majesty's ship Blossom, under the command of Captain F. W. Beechey ... in the years 1825, 26, 27 and 28, by J. Richardson ... [et al.] ; illustrated with upwards of fifty finely coloured plates by Sowerby'

 ----------> Harvard University.

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mudwerks
Brachiopods are a phylum of marine animals that have hard “valves” (shells) on the upper and lower surfaces. Most species of brachiopod went extinct during the Permian–Triassic extinction event over 250 million years ago, but many survive today.
more on wiki
scientificillustration:
Brachiopods from the genus Spirifer
From: ‘An introduction to the study of the Brachiopoda intended as a handbook for the use of students’ By James Hall and John M. Clarke. Published 1894
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