Assertion: early cephalopod | /r/HasProperty | supplemented by larger shells
Facets:
value: around 20 cm in length
type: OTHER
value: in the mid
type: TEMPORAL
Source sentences:
text: In the mid Tremadoc, these were supplemented by larger shells around 20 cm in length; these larger forms included straight and coiled shells, and fall into the orders Endocerida (with wide siphuncles) and Tarphycerida (with narrow siphuncles).