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Honghesaurus

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Extinct genus of pachypleurosaur Not to be confused with Yandusaurus, originally referred to as Honghesaurus.

Honghesaurus
Temporal range: Middle Triassic, Anisian PreꞒ O S D C P T J K Pg N
Photo and line-drawing of holotype specimen (IVPP V30380)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Sauropterygia
Family: Pachypleurosauridae
Genus: Honghesaurus
Xu et al., 2022
Type species
Honghesaurus longicaudalis
Xu et al., 2022

Honghesaurus is an extinct genus of pachypleurosaur from the Anisian-age Guanling Formation of China. The type specimen measures about 47.1 cm (18.5 in) in total body length.

Classification

The cladogram below follows Xu and colleagues (2022), when they used Youngina as a reference point for rooting the tree. Using a selection of placodonts resulted in a less resolved topology.

Pachypleurosauroidea

Majiashanosaurus

Diandongosaurus

Dianmeisaurus

Dawazisaurus

Panzhousaurus

Dianopachysaurus

Keichousaurus

Dactylosaurus

Anarosaurus

Odoiporosaurus

Serpianosaurus

Neusticosaurus

Qianxisaurus

Honghesaurus

Wumengosaurus

References

  1. ^ Xu, Guang-Hui; Ren, Yi; Zhao, Li-Jun; Liao, Jun-Ling; Feng, Dong-Hao (2022-05-05). "A long-tailed marine reptile from China provides new insights into the Middle Triassic pachypleurosaur radiation". Scientific Reports. 12 (1): 7396. Bibcode:2022NatSR..12.7396X. doi:10.1038/s41598-022-11309-2. ISSN 2045-2322. PMC 9072359. PMID 35513463.
Sauropterygia
Sauropsida
Sauropterygia
    • see below↓
Sauropterygia
Sauropterygia
Helveticosauridae?
Saurosphargidae
Placodontia
Cyamodontoidea
Eosauropterygia
    • see below↓
Helveticosaurus zollingeri Placochelys placodonta
Eosauropterygia
Eosauropterygia
Pachypleurosauria
Nothosauroidea
Simosauridae
Nothosauridae
Pistosauroidea
Plesiosauria
    • see below↓
Keichousaurus hui

Nothosaurus mirabilis

Pistosaurus longaevus
Plesiosauria
Plesiosauria
Rhomaleosauridae
Pliosauridae
Thalassophonea
Brachaucheninae
Plesiosauroidea
Microcleididae
Cryptoclidia
    • see below↓
Macroplata tenuiceps

Attenborosaurus conybeari

Hydrorion brachypterygius
Cryptoclidia
Cryptoclididae
Colymbosaurinae
Cryptoclidinae
Muraenosaurinae
Xenopsaria
Leptocleidia
Leptocleididae
Polycotylidae
Palmulasaurinae
Occultonectia
Polycotylinae
Dolichorhynchia
Elasmosauridae
Euelasmosaurida
Elasmosaurinae
Weddellonectia
Aristonectinae
Cryptoclidus eurymerus

Leptocleidus capensis

Elasmosaurus platyurus


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