Trucheosaurus

Trucheosaurus is an extinct genus of rhytidosteid temnospondyl from the Late Permian period of the Sydney Basin, New South Wales, Australia. It is known from the holotype materials MMF 12697a, a partially complete skull, AMF 50977, an articulated postcranial skeleton and BMNHR 3728, the counterpart of both skull and postcranial skeleton, recovered from the Glen Davis Formation. This genus was named by Watson in 1956, and the type species is Trucheosaurus major.[1]

Trucheosaurus
Temporal range: Late Permian
Restoration of Trucheosaurus major
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: †Temnospondyli
Suborder: †Stereospondyli
Family: †Rhytidosteidae
Genus: †Trucheosaurus
Watson, 1956
Type species
†Trucheosaurus major
(Woodward, 1909 [originally Bothriceps major)

Phylogeny

Below is a cladogram from Dias-da-Silva and Marsicano (2011):[2]

Stereospondyli
 

Benthosuchus

 
 

Watsonisuchus

 
 
 
 

Uruyiella

 
 
 

Peltobatrachus

 
 
 

Rhineceps

 
 
 

Australerpeton

 
 

Rhytidosteus

 
 
 
 
 
 
 
 

Lapillopsis

 
 

Lydekkerina

 
 
Trematosauria
 

Trematosaurus

 
 
 

Luzocephalus

 
 
 

Chomatobatrachus

 
 
Brachyopoidea
 

Bothriceps

 
 
 

Xenobrachyops

 
 

Keratobrachyops

 
 
 
Rhytidosteidae
 
 

Nanolania

 
 
 

Trucheosaurus

 
 

Laidleria

 
 
 
 
 

Boreopelta

 
 
 

Peltostega

 
 
 
 

Pneumatostega

 
 
 

Sangaia

 
 

Mahavisaurus

 
 
 
Derwentiinae
 

Deltasaurus

 
 
 

Arcadia

 
 
 

Rewana

 
 
 

Derwentia

 
 

Indobrachyops

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

References

  1. Watson, D. M. S. (1956). "The brachyopid labyrinthodonts". Bulletin of the British Museum (Natural History), Geology. 2: 317–391.
  2. Dias-da-Silva, S.; Marsicano, C. (2011). "Phylogenetic reappraisal of Rhytidosteidae (Stereospondyli: Trematosauria), temnospondyl amphibians from the Permian and Triassic". Journal of Systematic Palaeontology. 9 (2): 305–325. doi:10.1080/14772019.2010.492664. S2CID 84569779.


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