AT A GLANCE
- Common Name: Sudan Plated Lizard
- Scientific Name: Gerrhosaurus major
- Category: Reptiles
- Subcategory: Lizards
- Range: Eastern and central Africa, from South Sudan, Ethiopia, and Somalia south through Kenya, Tanzania, Uganda, Rwanda, Burundi, eastern DRC, and northern Mozambique
- Habitat Type: Arid to semi-arid savannas, dry acacia bushlands, rocky outcrops (kopjes), abandoned termite mounds, and open dry woodlands
- IUCN Red List Status: Least Concern
- Lifespan: 10 to 15 years (up to 20+ years in human care)
- Diet: Omnivorous (insects such as grasshoppers, beetles, crickets, millipedes, snails, small vertebrates, alongside fallen wild fruits, leaves, and flowers)
- Average Size/Weight: Total length 45 to 60 cm; snout-vent length 20 to 28 cm; weight 250 to 500 g
- Key Defining Feature: Heavily armored, stout African lizard covered in thick, rectangular plate-like scales resembling chainmail, featuring a prominent lateral skin fold running down each side of its body
Overview
The Sudan Plated Lizard (Gerrhosaurus major), also known as the Western Plated Lizard or Great Plated Lizard, is a robust, heavily armored diurnal reptile native to the sun-drenched savannas and rocky bushlands of East Africa. Belonging to the family Gerrhosauridae, this prehistoric-looking lizard looks like a miniature living dinosaur, encased from head to tail in thick, rectangular, tile-like scales reinforced with underlying osteoderms. Renowned for its calm, gentle demeanor and impressive longevity, it is a quintessential survivor of the dry African scrublands.
Biology and Physical Characteristics
Gerrhosaurus major has a heavy, cylindrical body, a short, wedge-shaped head, and stout, powerful limbs with five clawed toes. Its dorsal scales are large, keeled, and arranged in neat, transverse and longitudinal rows of heavy, rectangular plates that create an impervious chainmail suit. The coloration is an attractive tawny-brown, straw-yellow, or dark chocolate-brown, often accented by black and cream speckles and a pale throat. Along each flank runs a deep, flexible longitudinal skin groove lined with tiny granular scales: this lateral fold allows the rigid, armored body to expand when the lizard breathes, consumes large meals, or inflates itself defensively inside a rock crevice.
Behavior and Ecology
Diurnal and terrestrial, the Sudan Plated Lizard spends cool mornings basking on granite kopje boulders or sandy termite mound platforms to raise its core body temperature before foraging for beetles, fallen figs, and succulent flowers. It is an opportunistic omnivore with an insatiable appetite. When threatened by predators like hawks or jackals, it retreats into deep rock fissures or abandoned termitaria, turns sideways, and inflates its body with air via its lateral skin folds, wedging its armored scales so tightly against the rock walls that no predator can extract it.
Conservation and Human Impact
The Sudan Plated Lizard is evaluated as Least Concern by the IUCN Red List. It is widespread, resilient, and common across vast expanses of East and Central African savanna. While widely exported for the international exotic reptile pet trade, wild populations remain generally stable across major protected national parks such as the Serengeti and Tsavo.
Interesting Factoid
When a predator tries to pull the Sudan Plated Lizard out of a rock crack, the lizard inflates its lungs like a balloon, locking its chainmail-like scales so firmly against the rock walls that it is physically impossible to dislodge.