Assertion: true eurypterid | /r/HasProperty | strabops thacheri
Facets:
Source sentences:
text: In 1900 also there appeared C. E. Beecher's reconstruction of the giant Stylonurus excelsior Hall (which he preferred to call S. lacoanus) from the Catskill beds and in the next year the same author announced the discovery of a true eurypterid (Strabops thacheri) from the Cambric of Missouri, the only eurypterid from that fauna thus far known.