Geocalamus

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Lepidosauromorpha
Superordo: Lepidosauria
Ordo: Squamata
Cladus: Unidentata Episquamata

Subordo: Lacertoidea
Infraordo: Lacertibaenia
Cladus: Amphisbaenia

Familia: Amphisbaenidae
Genus: Geocalamus
Species: G. acutus - G. modestus
Name

Geocalamus Günther, 1880
Vernacular names
English: Wedge-snouted Worm Lizards

Geocalamus is a genus of amphisbaenians in the family Amphisbaenidae. Species in the genus are commonly known as worm lizards. Two species are placed in this genus.
Species

The following species are recognized as being valid.[1]

Geocalamus acutus Sternfeld, 1912 – wedge-snouted worm lizard
Geocalamus modestus Günther, 1880 – Mpwapwa wedge-snouted worm lizard

References

Genus Geocalamus at The Reptile Database www.reptile-database.org.

Further reading
Wikispecies has information related to Geocalamus.

Gans C (2005). "Checklist and Bibliography of the Amphisbaenia of the World". Bulletin of the American Museum of Natural History (289): 1-130.