Uzel N (1897), in the thysanuran Campodea, and probably entirely dis appears, though J.
Several Silurian fossils have been identified as insects, including a Thysanuran from North America, but upon these considerable doubt has been cast.
Except for its aquatic adaptations, however, the ephemerid °larva is wonderfully thysanuran in character, and possesses conspicuous and distinct maxillulae.
- A typical Thysanuran (Machilis maritima).
A supposed Thysanuran from the Silurian of New Brunswick has been described by G.