| Neither the examined type material nor the figured specimens of Campbell show the typical tyrolensiform trifurcation pattern. |
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| The relative positions of the ciliate, yeast, and plant sequences are, however, not robust and the branch forms a trifurcation. |
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| Some paratypes also show adductor scars similar to D. tyrolensis, and the typical trifurcation of the primary costae is usually detectable. |
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| It was important, thereafter, to develop a sense of tactile feel and direction with appropriately precurved scouting files to detect the trifurcation. |
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