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tetrabranchiata

Tetrabranchiata is a 15 letter word which starts with the letter T and ends with the letter A for which we found 1 definitions.

Definition
(n. pl.) An order of Cephalopoda having four gills. Among living species it includes only the pearly nautilus. Numerous genera and species are found in the fossil state such as Ammonites Baculites Orthoceras etc.
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