Assertion: sponge's spicule | /r/HasProperty | derived
Facets:
value: from radiolarians
type: OTHER
Source sentences:
text: Finally, Botting & Muir (2018) agreed in the most recent review of early sponge evolution that “there are no definite records of Precambrian sponges: isolated hexactine-like spicules may instead be derived from radiolarians.