C. fragilis may refer to: Campodea fragilis, a diplura arthropod species in the genus Campodea Chickcharnea fragilis, a sea snail species Chingkankousaurus fragilis, a theropod dinosaur species from the late Cretaceous Period Citharichthys fragilis, the gulf sanddab, a fish species native to the eastern Pacific Ocean Coelurus fragilis, a dinosaur species from the Late Jurassic period Cystopteris fragilis, the brittle bladderfern or common fragile fern, a fern species See also Fragilis (disambiguation)