libristomate
English
editAdjective
editlibristomate (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.