Nothosauridae

Nothosauridae are an extinct family of carnivorous aquatic sauropterygian reptiles from the Triassic time period of China, France, Germany, Israel, Italy, Netherlands, Russia, Switzerland, and northern Africa.[2][3]

Nothosauridae
Temporal range: Triassic
Nothosaurus mirabilis fossil
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: †Sauropterygia
Order: †Nothosauroidea
Suborder: †Nothosauria
Family: †Nothosauridae
Seeley, 1889
Genera[1]
An impression of Ceresiosaurus eating a small aquatic animal

Phylogeny

The cladogram shown below follows Rieppel (1998)'s phylogenetic analysis of nothosaurids (bold terminal taxa contain living species).[1] Most of these relations are still considered correct today,[4] but despite Rieppel (1998)'s referral of Ceresiosaurus and Silvestrosaurus to Lariosaurus, some authors still consider them separate and many additional species have been named since this analysis.[5]

 
 Archosauromorpha 
 
 

Prolacertiformes

 
 

Choristodera

 
 
 
 

Rhynchosauria

 
 

Trilophosaurus

 
 
 

Archosauriformes

 
 
 
 Lepidosauromorpha 
 

Kuehneosauridae

 
 

Lepidosauria

 
 
 
 

Testudines

 
 
 

Placodontia

 
 
 Pistosauroidea 
 

Corosaurus

 
 
 

Cymatosaurus

 
 

Pistosaurus

 
 
 
 Nothosauroidea 
 Pachypleurosauria 
 

Dactylosaurus

 
 

Neusticosaurus-Serpianosaurus

 
 
 Nothosauria 
 

Simosaurus

 
 Nothosauridae 
 

Germanosaurus

 
 
 

Nothosaurus

 
 
 
 

Lariosaurus balsami (type species of Lariosaurus)

 
 

Lariosaurus curionii

 
 
 
 

Ceresiosaurus

 
 
 

Silvestrosaurus

 
 

Lariosaurus valceresii

 
 
 
 
 
 
 
 
 
 
 
 
 

A species level phylogenetic analysis of Nothosauridae was performed by Liu et al. (2014), and included all known valid species of the family apart from Lariosaurus stensioi (type of Micronothosaurus), Nothosaurus cymatosauroides, and Ceresiosaurus lanzi. The resultant topology is similar to the one obtained in Rieppel (1998) if the new additions are ignored, however this analysis found both Lariosaurus and Nothosaurus to be polyphyletic in regard to each-other and all other genera of the family, making a systematic revision of these two genera necessary. Below, their results are shown with type species of named nothosaurid genera noted.[6]

 
 

Pachypleurosauria

 
 Nothosauria 
 

Simosaurus gaillardoti

 
 Nothosauridae 
 

Germanosaurus latissimus (type of Germanosaurus)

 
 

Nothosaurus zhangi

 
 

Nothosaurus haasi

 
 

Nothosaurus edingerae

 
 
 
 

Nothosaurus jagisteus

 
 
 

Nothosaurus mirabilis (type of Nothosaurus)

 
 

Nothosaurus tchemovi

 
 
 
 
 
 

Nothosaurus marchicus

 
 

Nothosaurus yangiuanensis

 
 
 
 

Nothosaurus giganteus

 
 
 

Nothosaurus juvenilis

 
 
 

Lariosaurus hongguoensis

 
 
 
 

Lariosaurus buzzii (type of Silvestrosaurus)

 
 

Nothosaurus winkelhorsti

 
 
 
 
 

Lariosaurus xingyiensis

 
 

Nothosaurus youngi

 
 
 
 
 

Lariosaurus calcagnii (type of Ceresiosaurus)

 
 

Lariosaurus valceresii

 
 
 
 

Lariosaurus balsami (type of Lariosaurus)

 
 

Lariosaurus curionii

 
 
 
 
 
 
 
 
 
 
 
 
 

See also

References

  1. Olivier Rieppel (1998). "The status of the sauropterygian reptile genera Ceresiosaurus, Lariosaurus, and Silvestrosaurus from the Middle Triassic of Europe". Fieldiana: Geology. New Series. 38: 1–46.
  2. The Paleobiology Database: Nothosauridae
  3. Nothosauridae
  4. Lee, M. S. Y. (2013). "Turtle origins: Insights from phylogenetic retrofitting and molecular scaffolds". Journal of Evolutionary Biology. 26 (12): 2729–2738. doi:10.1111/jeb.12268. PMID 24256520.
  5. Jasmina Hugi (October 2011). "The long bone histology of Ceresiosaurus (Sauropterygia, Reptilia) in comparison to other eosauropterygians from the Middle Triassic of Monte San Giorgio (Switzerland/Italy)" (PDF). Swiss Journal of Palaeontology. 130 (2): 297–306. doi:10.1007/s13358-011-0023-6. S2CID 128688930.
  6. Jun Liu; Shi-xue Hu; Olivier Rieppel; Da-yong Jiang; Michael J. Benton; Neil P. Kelley; Jonathan C. Aitchison; Chang-yong Zhou; Wen Wen; Jin-yuan Huang; Tao Xie; Tao Lv (2014). "A gigantic nothosaur (Reptilia: Sauropterygia) from the Middle Triassic of SW China and its implication for the Triassic biotic recovery". Scientific Reports. 4: Article number 7142. Bibcode:2014NatSR...4E7142L. doi:10.1038/srep07142. PMC 4245812. PMID 25429609.


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