Discoserra pectinodon

Discoserra is a member of the actinopterygian order Guildayichthyiformes. This elegant little fish has a rounded body, abbreviate-heterocercal tail, pectoral fin high on the flank, and well webbed fins; all of which are features of a fish adapted to living among weeds, sponges, or corals. The snout is like a pincers, with long but weak comb-like teeth, and the gape of the mouth is tiny, thus accentuating suction feeding on small food objects. The skull adaptations are a peculiar mixture of primitive and derived structures. Scale in mm.

Reference:

• Lund, R. 2000. "The new actinopterygian order Guildayichthyiformes from the Lower Carboniferous of Montana (USA)". Geodiversitas (MNHN, Paris) 22 (2): 171-206.

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