Actinodontidae

Not to be confused with the mollusk family in the infraclassis Heteroconchia.

Actinodontidae Temporal range: Early Permian-Late Permian 290–259  Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Order:	† Temnospondyli
Superfamily:	† Archegosauroidea
Family:	† Actinodontidae Lydekker, 1885
Genera
† Chelydosaurus †Chelydosaurus marahomensis †Chelydosaurus vranii † Syndyodosuchus †Syndyodosuchus tetricus

Actinodontidae is an extinct family of temnospondyls that lived during the Permian period. The family is a sister taxon to Archegosauridae, under the superfamily Archegosauroidea ^[1] .Though air-breathing via lungs, they would have been more physiologically similar to fishes than present amphibians or tetrapods; living primarily in brackish or freshwater environments. ^[2]

References

1. "Mindat.org". www.mindat.org. Retrieved 2025-04-12.
2. Witzmann, Florian; Brainerd, Elizabeth (2017-03-02). "Modeling the physiology of the aquatic temnospondyl Archegosaurus decheni from the early Permian of Germany". Fossil Record. 20 (2): 105–127. Bibcode:2017FossR..20..105W. doi: 10.5194/fr-20-105-2017 . ISSN   2193-0066.

Sources

• Lohmann, Ulla; Sachs, Sven (2001). "Observations on the postcranial morphology, ontogeny and palaeobiology of Sclerocephalus haeuseri (Amphibia: Actinodontidae) from the Lower Permian of Southwest Germany" (PDF). Memoirs of the Queensland Museum. Brisbane: Queensland Museum.