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Temporal range: Late Triassic
Chinle fish.jpg
Arganodus (bottom) and other fish from the Chinle formation
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sarcopterygii
Order: Ceratodontiformes
Family: Ceratodontidae
Genus: Arganodus
Martin, 1979
  • A. dorotheae
  • A. atlantis

Arganodus is an extinct genus of Ceratodontidae (lungfish). Its fossils have been found in the Redonda Formation, New Mexico,[1] and the Cumnock Formation, North Carolina,[2] although the North Carolinian specimens are smaller than most recorded specimens.[2] Fossils have also been uncovered in the Petrified Forest National Park.[3] It was first named by Martin in 1979, and contains two species, A. dorotheae and A. atlantis. Arganodus was probably similar to modern lungfish, and lived in underwater burrows during dry periods until monsoons occurred.[3]


  1. ^ "The Microvertebrate Fauna of Shark Tooth Hill, Redonda Formation (Late Triassic, Apachean), Quay County, New Mexico". Andrew B. Heckert, Specer G. Lucas and Adrian P. Hunt, New Mexico Museum of National History. 2005. Archived from the original on 2 June 2008. Retrieved 2008-07-14. 
  2. ^ a b "A New Microvertebrate Fauna from the Upper Triassic (Norian) Cumnock Formation, Durham Subbasin, North Carolina, USA". Andrew B. Heckert, Vincent Schneider, Paul E. Olsen, and Sterling Nesbitt. 2006. Retrieved 2008-07-15. 
  3. ^ a b "Petrified Forest National Park - Vertebrates of the Late Triassic (U.S. National Park Service)". 2007-04-13. Archived from the original on 12 June 2008. Retrieved 2008-07-15. 

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