-
Cheiragonidae is a
small family of crabs,
sometimes called helmet crabs,
placed in its own superfamily, Cheriagonoidea. It
comprises three extant species...
- Russia, crab
Erimacrus isenbeckii (Brandt, 1848) (Decapoda: Brachyura:
Cheiragonidae), 3 photo". www.crabs.ru.
Retrieved 2019-04-13. Chuchukalo, V. I.; Nadtochy...
- Cancridae. Four
other families have been
separated into new superfamilies:
Cheiragonidae into Cheiragonoidea,
Corystidae into Corystoidea, and both Pirimelidae...
-
River Formation represent the
oldest occurrence of the crab
family Cheiragonidae. Snavely, P.D.; Niem, A.R.; Pearl, J.E. (1978). "Twin
River Group (upper...