Assertion: eurypterid's pair | /r/HasProperty | adapted to this function
Facets:
Source sentences:
text: It crawls by the use of the four pairs of endognathites, and digs by the combined use of the shovelshaped head shield, the pushing spine, the activity of the legs, especially of the last pair, which are adapted to this function and probably even by the aid of the flapping sternites.