Rhabdodon priscus is known from a specimen from the Marnes Rouges Inférieures Formation.
The material of Rhabdodon priscus includes a dentary and many other postcranial remains.
More specifically, it is known from the Bellevue layer, which has produced many vertebrate fossils.
Even though it produced many vertebrates, the formation only has a scarce record of plants and invertebrates.
The non-dinosaurian vertebrates consist of Lepisosteus, an indeterminate turtle, and a crocodile.
Dinosaurian fauna from the Marnes Rouges Inférieures Formation include Ampelosaurus, an animal classified as Dromaeosauridae indet.,
and an indeterminate ankylosaur.
The bird Gargantuavis philoinos, and dinosaur eggs have also been recovered.

 
Another formation Rhabdodon priscus is known from is Gres de Saint-Chinian.
Along with both Rhabdodon priscus, Rhabdodon septimanicus, dinosaur eggs, Nodosauridae indet. (
previously known as Rhodanosaurus lugdunensis), Theropoda indet.,
Variraptor mechinorum, Avialae indet.,
Enantiornithes indet.,
and a possible Abelisauridae indet.
are known from this formation.

Rhabdodon priscus is one of few vertebrates known from the Gres de Labarre Formation.
The only other fossils from the formation belong to Ampelosaurus atacis and a Nodosauridae indet.
Rhabdodon priscus is known from a specimen from the Marnes Rouges Inférieures Formation. The material of Rhabdodon priscus includes a dentary and many other postcranial remains. More specifically, it is known from the Bellevue layer, which has produced many vertebrate fossils. Even though it produced many vertebrates, the formation only has a scarce record of plants and invertebrates. The non-dinosaurian vertebrates consist of Lepisosteus, an indeterminate turtle, and a crocodile. Dinosaurian fauna from the Marnes Rouges Inférieures Formation include Ampelosaurus, an animal classified as Dromaeosauridae indet., and an indeterminate ankylosaur. The bird Gargantuavis philoinos, and dinosaur eggs have also been recovered.
 
Another formation Rhabdodon priscus is known from is Gres de Saint-Chinian. Along with both Rhabdodon priscus, Rhabdodon septimanicus, dinosaur eggs, Nodosauridae indet. (previously known as Rhodanosaurus lugdunensis), Theropoda indet., Variraptor mechinorum, Avialae indet., Enantiornithes indet., and a possible Abelisauridae indet. are known from this formation.
Rhabdodon priscus is one of few vertebrates known from the Gres de Labarre Formation. The only other fossils from the formation belong to Ampelosaurus atacis and a Nodosauridae indet.
Rhabdodon