Assertion: sea urchin's shell | /r/PartOf | mollusc
Facets:
value: almost certainly
type: DEGREE
Source sentences:
text: Some tiny Early Cambrian shells almost certainly belonged to molluscs, while the owners of some "armor plates," Halkieria and Microdictyon, were eventually identified when more complete specimens were found in Cambrian lagerstätten that preserved soft-bodied animals.