单词 | Siphonotretacea |
释义 | Siphonotretacea [¦sī·fǝ·nō·trǝ`tās·ē·ǝ] PALEONTOLOGY A superfamily of extinct, inarticulate brachiopods in the suborder Acrotretidina of the order Acrotretida having an enlarged, tear-shaped, apical pedicle valve. |
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