Eodiscoglossus

Eodiscoglossus is an extinct genus of prehistoric frogs. It is known from the type species E. santonjae from the Early Cretaceous of Spain, as well as a referred species E. oxoniensis known from the Forest Marble Formation of the UK.[1][2][3] It was a small primitive frog, with a length of only 27 mm (1.1 in) from the premaxilla to the ischium.[2] Formerly considered to be closely related to discoglossids, now is regarded as close to the root of all extant frogs.[3] The referral of E. oxoniensis to Eodiscoglossus has been questioned, as it is much earlier than the type species and it is based on homoplasic and plesiomorphic characteristics inherited from a common ancestor, so there is no clear evidence of a close relation.[4]

Eodiscoglossus
Temporal range: Early Cretaceous 125 Ma
↓
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Alytidae
Genus: †Eodiscoglossus
Villalta, 1957
Species
  • †Eodiscoglossus oxoniensis Evans et al., 1990
  • †Eodiscoglossus santonjae Villalta, 1957

See also
  • Prehistoric amphibian
  • List of prehistoric amphibians

References
  1. "†Eodiscoglossus Villalta 1957". Paleobiology Database. Fossilworks. Retrieved 2 March 2018.
  2. Hecht, Max K. (1970). "The morphology of Eodiscoglossus, a complete Jurassic frog". American Museum Novitates. 2424: 1–17. hdl:2246/2634.
  3. Báez, Ana Maria; Gómez, Raúl O. (2016). "Revision of the skeletal morphology of Eodiscoglossus santonjae, an Early Cretaceous frog from northeastern Spain, with comments on its phylogenetic placement". Fossil Imprint: 67–77. doi:10.14446/fi.2016.67. ISSN 2533-4069.
  4. Báez, Ana M.; Gómez, Raúl O. (2019). "Redescription of the overlooked basal frog Wealdenbatrachus reveals increased diversity among Early Cretaceous anurans". Cretaceous Research. 99: 14–29. doi:10.1016/j.cretres.2019.02.006.


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