Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Deuterostome (Deuterostomia)
Chordata (Chordates)
Olfactores
Craniata (Craniata (chordata))
Vertebrata (Animals with backbone)
Gnathostomata (Gnathostome)
Eugnathostomata
Teleostomi
Euteleostomi
Sarcopterygii (Lobe-finned fishes)
Dipnotetrapodomorpha
Tetrapodomorpha (Tetrapodomorph)
Tetrapoda (Tetrapod)
Reptiliomorpha
Amniota (Amniote)
Sauropsida
Reptilia (Reptiles)
Eureptilia
Romeriida
Diapsid (Diapsida)
Neodiapsida
Sauria
Lepidosauromorpha (Lepidosauromorph)
Lepidosauria
Squamata (Scaled reptiles)
Episquamata
Toxicofera
Ophidia
Serpentes (Snake)
Alethinophidia
Caenophidia (Caenophidian)
Colubroidea
Viperidae (The viper family)
Crotalinae (Pit adders)
Crotalus
Crotalus molossus (2254464)
English name: blacktail rattlesnake
Children (4 direct children, 4 direct and indirect children):
Crotalus molossus estebanensis
Crotalus estebanensis
Crotalus molossus molossus
Crotalus molossus nigrescens
Crotalus molossus oaxacus