dolonal
Adjective
Pertaining to the dolon.
Usage- not-comparable
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More examples (1)
In forms with a modified outer antral fence, both this and the adjacent distal band of the domiciliar wall may be concave and form the antrum (Figs. 6 J-K; 7 B), and in some forms the antrum apparently is formed by the dolon alone (dolonal antrum).
Margin of dolon curling smoothly to distal margin of velum both anteriorly and posteriorly, but dolonal margins not in contact when valves closed.
However, the dolonal spines of D. spinosa and D. mackenziensis are not found in piretellines.