Hinge pliodont, that is to say, it has numerous teeth on either side of the umbones and the teeth are perpendicular to the edge.
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Philobryidae.-Shell thin, very inequilateral, anterior part atrophied, umbones projecting.
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- Inarticulate Brachiopoda, with the pedicle passing out between the umbones, the opening being shared by both valves.
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umbones与发音含义,同义词,反义词,翻译,刑和更多的