| 释义 |
atry·pa
\ə.ˈtrīpə\ noun
Usage: capitalized
Etymology: New Latin, from a- (II) + Greek trypa hole — more at trypa
: a genus of extinct Silurian and Devonian plicate-shelled or costate-shelled brachiopods having the plates of the brachidium produced into spirally rolled processes with the apices usually directed toward the plane of symmetry of the valve |