Family ID: Brown, sclerotized & spindle shaped body. Posterior end of body has operculum with thread-like gills and pair of hooks.
Family ID: Long antenna, notched labrum (Figure 5)
Genus ID: the right mandible does not have a patch of setae present between the prostheca and molar as Fallceon quilleri would (Figure 4). The tarsal claw is less than half as long as the tarsi (Figure 6). Gills are simple (Figure 7)
Family ID: Long antenna (visible in Figure 1), minnow shaped body and notched labrum (visible in Figure 5)
Genus ID: Several dense tufts of setae present on the right mandible between the prostheca and molar (Figure 3), no well developed medially projecting corner on the labial palps (Figure 6), darker "veins" present within the gills (Figure 4).
Species ID: Fallceon quilleri is the only known species of Fallceon in Colorado.
Scale Bar = 10 µm.
Diatoma and and likely gyrosigma, amongst others.
Scale Bar = 10 µm.
A decently sized naviculoid hanging out with some cyanobacteria.