The Helodermatidae or beaded lizards are a small family of lizards endemic to North America today, but formerly more widespread in the ancient past. Traditionally...

all of which are venomous. It is the only extant genus of the family Helodermatidae. The genus Heloderma contains the Gila monster (H. suspectum) and four...

Guatemala: Heloderma charlesbogerti. The evolutionary history of the Helodermatidae may be traced back to the Cretaceous period (145 to 166 million years...

beaded lizard (Heloderma horridum) is a species of lizard in the family Helodermatidae, one of the two species of venomous beaded lizards found principally...

eleven to twelve months. They are primarily insectivores. The family Helodermatidae (beaded lizards) has only one genus with 5 species: the Gila monster...

Lanthanotidae. In 1899, George Albert Boulenger relegated it to the family Helodermatidae, together with the beaded lizards and Gila monster, on the basis of...

airflow, including air-sacs akin to those of birds. Aigialosauridae Helodermatidae Mosasauridae Necrosauridae Welton LJ, Siler CD, Bennett D, Diesmos A...

Sphaerodactylus millepunctatus Hallowell, 1861 Order: Squamata · Family: Helodermatidae Helodermatidae is a family of terrestrial lizards whose only genus is Heloderma...

endangered species of beaded lizard, a venomous lizard in the family Helodermatidae. The species is endemic to the dry forests of the Motagua Valley in...

(Heloderma exasperatum) is a venomous species of beaded lizard in the family Helodermatidae. It is found in the tropical forests and shrublands of western Mexico...