Aphetohyoidea
Aph·e·to·hy·oi·dea
¦afəˌtōˌhīˈȯidēə
taxonomic synonym of placodermi
Word History
Etymology
New Latin, from Greek aphetos let loose, free + New Latin -hyoidea (from Greek hyoeidēs shaped like an upsilon, from hy, y upsilon + -oeidēs -oid