Assertion: gastropod's shell | /r/HasProperty | oriented
Facets:
Source sentences:
text: Derived gastropods have elongated apertures, with the margin more parallel to the axis of coiling (lower “E value”), and the shell being oriented more parallel to the substrate.
text: The width should be taken at the widest part of the shell when the shell is oriented so that aperture faces the observer; the width is measured from the side of the body whorl to the outermost side of the aperture (mouth).