As with other mammals, due to the hardness of the enamel, teeth and jaws make up much of the fossil record of Peradectes.
The jaw of the type specimen P. elegans is slender with a medially inflected angle as in other marsupials like opossums, and it possesses simple premolars and comparatively large canine teeth.
Peradectes upper molars are distinctive, noted to have a larger metacone than protocone, a buccally oriented stylar shelf with cusp B as the largest cusp, and a short postmetaconule crista.
Some specimens are also described as having a robust skull with a short snout and vertical directed lower incisors.

Peradectes fossils tend to be small, with individual teeth for example measuring no larger than 1.5 mm.
One particular specimen assigned to Peradectes has postcranial anatomy common to modern arboreal marsupials, including reduced transverse processes of the lumbar vertebrae, a posterior anticlinal vertebra, somewhat short metatarsals, and a comparatively long tail (1.5-2 times the length of the head and body) thought to have been prehensile.
As with other mammals, due to the hardness of the enamel, teeth and jaws make up much of the fossil record of Peradectes. The jaw of the type specimen P. elegans is slender with a medially inflected angle as in other marsupials like opossums, and it possesses simple premolars and comparatively large canine teeth. Peradectes upper molars are distinctive, noted to have a larger metacone than protocone, a buccally oriented stylar shelf with cusp B as the largest cusp, and a short postmetaconule crista. Some specimens are also described as having a robust skull with a short snout and vertical directed lower incisors.
Peradectes fossils tend to be small, with individual teeth for example measuring no larger than 1.5 mm. One particular specimen assigned to Peradectes has postcranial anatomy common to modern arboreal marsupials, including reduced transverse processes of the lumbar vertebrae, a posterior anticlinal vertebra, somewhat short metatarsals, and a comparatively long tail (1.5-2 times the length of the head and body) thought to have been prehensile.
Peradectes