libristomate
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English[edit]
Adjective[edit]
libristomate (not comparable)
- (zoology) Of a trilobite, of the subclass Libristoma, and having a detached hypostome.
- 2009, George P. Hansen, Trilobites of Black Cat Mountain, page 144:
- Thus, Fortey later began grouping natant trilobites and their offspring as libristomate to designate the non-attached, or formerly detached, nature of their hypostomes.