Sistrurus Garman 1883 (pigmy rattlesnake)
Reptilia - Squamata - Viperidae
PaleoDB taxon number: 113770
Parent taxon: Crotalinae according to D. Parmley and K. B. Hunter 2010
Sister taxa: Agkistrodon, Aploaspis, Caudisonia, Crotalus, Trimeresurus
Subtaxa: none
Ecology: ground dwelling carnivore