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ARISTOSUCHUS

a compsognathid theropod dinosaur from the Early Cretaceous of England
Pronunciation: ah-RIS-toe-SOOK-us
Meaning: Superior crocodile
Author/s: Seeley (1887)
Synonyms: Poekilopleuron pusillus
First Discovery: Isle of Wight, UK
Discovery Chart Position: #65

Aristosuchus pusillus

(Small Superior Crocodile)Etymology
Aristosuchus is derived from the Greek "aristos" (superior, best) and "soukhos" (the Greek name for the Egyptian crocodile god, Sobek).
The species epithet, pusillus, means "small" in Latin.
It was initially named Poekilopleuron pusillus by Richard Owen in 1876.
Discovery
The remains of Aristosuchus were discovered in the Wealden Group on the Isle of Wight, England, likely in the Wessex formation.
The holotype (BMNH R178) consists of a sacrum (a block of five fused hip vertebrae) and a piece of a pubic bone.
Estimations
Timeline:
Era: Mesozoic
Epoch: Early Cretaceous
Stage: Barremian
Age range: 130-125 mya
Stats:
Est. max. length: 2 meters
Est. max. hip height: ?
Est. max. weight: 10 Kg
Diet: Herbivore
References
• Owen R (1876) "Supplement (No. VII) to the Monograph on the Fossil Reptilia of the Wealden and Purbeck Formations. (Poikilopleuron and Chondrosteosaurus)". Palaeontographical Society Monograph, 30: 1–7.
• Seeley HG (1887) "On Aristosuchus pusillus (Owen), being further notes on the fossils described by Sir R. Owen as Poikilopleuron pusillus, Owen". Quarterly Journal of the Geological Society of London, 43: 221–228. DOI: 10.1144/GSL.JGS.1887.043.01-04.22.
• Naish D (1999) "Fox, Owen and the small Wealden theropods Calamospondylus and Aristosuchus". Journal of Vertebrate Paleontology, 19(Suppl. 3): 66.
• Naish D (2001) "The historical taxonomy of the Lower Cretaceous theropods (Dinosauria) Calamospondylus and Aristosuchus from the Isle of Wight". Proceedings of the Geologists’ Association, 113: 153–163.
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To cite this page:
Atkinson, L. "ARISTOSUCHUS :: from DinoChecker's dinosaur archive".
›. Web access: 06th Mar 2026.
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