Phyllocarida
plural noun
Phyl·lo·car·i·da
: a group of Malacostraca comprising forms with the head and thorax enclosed in a chitinous or calcareous bivalve carapace and including Nebaliidae and related extinct families
phyllocaridan adjective or noun
-ədən
Word History
Etymology
New Latin, from phyll- + -carida (from Greek karid-, karis shrimp, prawn); perhaps akin to Greek kara head