Assertion: eurypterid's carapace | /r/HasProperty | smooth
Facets:
Source sentences:
text: The carapace was smooth but on the sternites and postabdominal segments are traces of small tubercles.
text: The U- or horseshoe-shaped carapace (shell) is smooth and brown, although in some environments the carapace is covered with epiphytic plants and epizooic animals (organisms which live on the outer surface of other organisms and can grow so much that the carapace is no longer visible).