Partly or wholly split into three divisions or lobes.
- The suture is quadrilobate and of modest complexity, with two trifid lobes represented on the flanks, margined by bifid saddles.
- Miloradovich also recognized these cardinal process types, and noted that the median lobe of the massive, trifid cardinal process often is recurved dorsally.
- The trifid third and bifid fourth lobes are incompletely separated by a lower and smaller fourth lateral saddle.
Mid 18th century: from Latin trifidus, from tri- 'three' + fid- 'split, divided' (from the verb findere).
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