Temporal range: 59–55 Ma

Late Palaeocene

Skull and line drawing
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Crocodylomorpha
Family: Dyrosauridae
Genus: Arambourgisuchus
Jouve et al., 2005
Type species
Arambourgisuchus khouribgaensis
Jouve et al., 2005

Arambourgisuchus ("[Prof. Camille] Arambourg's crocodile") was a dyrosaurid crocodylomorph from the late Palaeocene of Morocco, found in the region of Sidi Chenane in 2000, following collaboration by French and Moroccan institutions, and described in 2005 by a team led by palaeontologist Stéphane Jouve.

Its type and only species is A. khouribgaensis, after the town of Khouribga, near which the holotype was found.


Holotype skull seen from above and below

Four specimens of this taxon have been found:

The remains of A. khourgbaensis were found in a phosphate mine in the region of Sidi Chenane, part of the Ouled Abdoun Basin. The age of this animal is therefore Thanetian (late Palaeocene).


Arambourgisuchus khourbgaensis is a member of the Dyrosauridae, based on the presence of the following synapomorphies:

According to Jouve et al. (2005), it is probably one of the most derived forms, but the lack of better material makes a correct determination of its affinities difficult.


The skull of A. khourbgaensis was proportionally one of the longest among all of the Dyrosauridae, reaching a length of 1 meter. Its teeth were sharp but strong and large, as well as being less numerous than the ones in Dyrosaurus phosphaticus.

Like other dyrosaurids, it was a marine predator.


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