Conulariida
plural noun
Con·u·la·ri·i·da
| \ ˌkänᵊləˈrīədə, -nyələˈ- \
Definition of Conulariida
: a phylum or other group of extinct invertebrate animals of uncertain relationships known from pyramidal usually 4-sided chitinophosphatic tests widely distributed in Devonian, Pennsylvanian, and Permian rocks
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Merriam-Webster unabridged
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