Assertion: crab's family | /r/HasProperty | nautilidae
Facets:
Source sentences:
text: The family Nautilidae has its origin in the Trigonocerataceae (Centroceratina), specifically in the Syringonautilidae of the Late Triassic and continues to this day with Nautilus, the type genus, and its close relative, Allonautilus.
text: The family Nautilidae contains up to six extant species and several extinct species: