Extinct marine snake (†Pterosphenus schucherti)

Superdomain: Neomura

Domain: Eukaryota

(unranked): Unikonta

(unranked): Obazoa

(unranked): Opisthokonta

(unranked) Holozoa

(unranked) Filozoa

Kingdom: Animalia

Subkingdom: Eumetazoa

(unranked): Bilateria

Superphylum: Deuterostomia

Phylum: Chordata

Subphylum: Vertebrata

Superclass: Tetrapoda

Class: Reptilia

Subclass: Diapsida

Infraclass: Lepidosauromorpha

Superorder: Lepidosauria

Order: Squamata

Clade: Toxicofera

Clade: Ophidia

Suborder: Serpentes

Infraorder: Alethinophidia

Clade: Afrophidia

Clade: Caenophidia

Superfamily: Acrochordoidea

Family: †Palaeophiidae

Subfamily: †Palaeophiinae

Genus: †Pterosphenus

Species: †P. schucherti

Done