单词 | ostracosteous |
释义 | † ostracosteousadj. Palaeontology. Obsolete. rare. Apparently only attested in dictionaries or glossaries. Of or relating to the former order Ostracostei of extinct Palaeozoic fishes (the placoderms). ΚΠ 1890 Cent. Dict. 4172/1 Ostracosteous, covered with shell-like plates of bone;..placodermatous. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online June 2021). < adj.1890 |
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