Inarticulata


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Inarticulata

[¦in·är‚tik·yə′läd·ə]
(invertebrate zoology)
A class of the phylum Brachiopoda; valves are typically not articulated and are held together only by soft tissue of the living animal.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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++ +++ Sowerbyella (Sowerbyella) plana (Roomusoks, 1959) - ++++ Sowerbyella quinquecostata (McCoy, 1871) - ++ Brachiopoda inarticulata Acanthocrania sp.
Moreover, although Brachiopoda is composed of 2 classes (Inarticulata and Articulata), and 2 orders in each of these classes, the 3 previously mentioned species all belong to the same order (Lingulida) and class (Inarticulata).
The specimens of Lingula anatina (Inarticulata, Lingulida) were collected from Amami Island, Kagoshima, Japan, in May 2012.
As described earlier, Brachiopoda has been subdivided into the 2 classes Inarticulata and Articulata.
This irony may also be grounded in the grammarian tradition, specifically in distinctions made between articulated and non-articulated (articulata / inarticulata) vox, as well as between vox which can be rendered in letters and that which cannot be (litterata / illiterata).
The roughly 120 genera of living brachiopods are traditionally grouped into two classes - the Inarticulata and Articulata - which are distinguished on the basis of differences in shell structure, anatomy, and reproductive biology (James et al., 1992).