Honghesaurus

Extinct genus of pachypleurosaur

Honghesaurus
Temporal range: Middle Triassic, Anisian
PreꞒ
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S
D
C
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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.[1]

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.[1]

References

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  1. ^ a b 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.
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Sauropsida
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Sauropterygia
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Helveticosauridae?
Saurosphargidae?
Placodontia
Cyamodontoidea
Eosauropterygia
    • see below↓
Helveticosaurus zollingeri Placochelys placodonta
Pachypleurosauria
Nothosauroidea
Simosauridae
Nothosauridae
Pistosauroidea
Plesiosauria
    • see below↓
Keichousaurus hui

Nothosaurus mirabilis

Pistosaurus longaevus
Rhomaleosauridae
Pliosauridae
Thalassophonea
Brachaucheninae
Plesiosauroidea
Microcleididae
Cryptoclidia
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Macroplata tenuiceps

Attenborosaurus conybeari

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

Leptocleidus capensis

Elasmosaurus platyurus


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