Productus
noun
Pro·duc·tus
| \ prəˈdəktəs\
Definition of Productus
: a genus of extinct articulate brachiopods characteristic of Carboniferous and Permian strata, lacking a pedicle but often anchored by spines on the shell, and including the largest known brachiopods some of which (as P. giganteus) attain a width of one foot
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