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Temporal range: Early-Middle Permian, 289–265.8 Ma
Lanthanosuchus watsoni.jpg
Restoration of Lanthanosuchus watsoni
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Parareptilia
Order: Procolophonomorpha
Clade: Hallucicrania
Superfamily: Lanthanosuchoidea
Ivachnenko, 1980

See text.

Lanthanosuchoidea is an extinct superfamily of ankyramorph parareptiles from the late Cisuralian to the middle Guadalupian epochs (Artinskian[1] - Wordian stages) of Europe, North America and Asia.[2] It was named by the Russian paleontologist Ivachnenko in 1980, and it contains two families Acleistorhinidae and Lanthanosuchidae.[3]


Lanthanosuchoidea is a node-based taxon defined in 1997 as "the most recent common ancestor of Lanthanosuchus, Lanthaniscus, and Acleistorhinus".[3] The cladogram below follows the topology from a 2011 analysis by Ruta et al.[2]


Chalcosaurus rossicus

Lanthaniscus efremovi

Lanthanosuchus watsoni


Acleistorhinus pteroticus

Colobomycter pholeter

The cladogram below follows the topology from a 2016 analysis by MacDougall et al.[4]






Colobomycter pholeter

Colobomycter vaughni


  1. ^ Modesto, S. P.; Scott, D. M.; Reisz, R. R. (2009). "Arthropod remains in the oral cavities of fossil reptiles support inference of early insectivory". Biology Letters. 5 (6): 838–840. doi:10.1098/rsbl.2009.0326. PMC 2827974. PMID 19570779.
  2. ^ a b Marcello Ruta; Juan C. Cisneros; Torsten Liebrect; Linda A. Tsuji; Johannes Muller (2011). "Amniotes through major biological crises: faunal turnover among Parareptiles and the end-Permian mass extinction". Palaeontology. 54 (5): 1117–1137. doi:10.1111/j.1475-4983.2011.01051.x.
  3. ^ a b DeBraga, M.; Rieppel, O. (1997). "Reptile phylogeny and the interrelationships of turtles". Zoological Journal of the Linnean Society. 120: 281–354. doi:10.1111/j.1096-3642.1997.tb01280.x.
  4. ^ MacDougall, M.J.; Modesto, S. P.; Reisz, R. R. (2016). "A new reptile from the Richards Spur Locality, Oklahoma, USA, and patterns of Early Permian parareptile diversification". Journal of Vertebrate Paleontology: e1179641. doi:10.1080/02724634.2016.1179641.