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- Callobatrachus abstract "Callobatrachus is an extinct genus of discoglossoid anuran amphibian from the Early Cretaceous-age Yixian Formation of Liaoning, China. It was described in 1999 by K. Gao of the American Museum of Natural History and Y. Wang of the Chinese Academy of Sciences. Discovered in the Sihetun locality of the western part of Liaoning province, in the lower part of the Yixian Formation, the fossil dates to approximately 124.6 Ma. Callobatrachus is considered to be the most basal member of Discoglossidae based on phylogenetic analysis.As frogs are rarely found as articulated skeletons in the fossil record, the discovery of this new taxon has provided important insight into anuran evolution.The holotype, IVPP V11525, is known from a nearly complete skeleton exposed in a dorsal view on a shale slab. Its total body length (from snout to vent) is estimated at approximately 94 mm. It differs morphologically in many respects from all other discoglossoids, including the number of presacral vertebrae (9 instead of the usual 8) and other primitive characters. Although it had a mosaic of primitive and derived characters, it can be unequivocally placed as the most basal taxon of the clade. This shows that the taxon diverged early from the stem and evolved separately as a distinct lineage by the Early Cretaceous in East Asia.The skull is described as being short and wide and is well preserved. The maxillary region is less well-preserved but it can be determined that each premaxilla bears 18-20 slender and conical teeth, and the maxilla bears approximately 40-50 fine pedicellate teeth. The vertebral column consists of nine presacral vertebrae, a single sacral vertebra, and a free urostyle. Three pairs of ribs were found associated with presacrals II-IV. The hind limbs are remarkably well-preserved and are slenderly built, with an approximate total length of 116 mm. Its hind feet have the phalangeal formula 2-2-3-4-3, with its fourth digit being the longest at 27 mm.Before its description, Callobatrachus was announced in Chinese media as \"sanyanlichan\".".
- Callobatrachus thumbnail Callobatrachus.png?width=300.
- Callobatrachus wikiPageExternalLink s420441.htm.
- Callobatrachus wikiPageID "21577075".
- Callobatrachus wikiPageLength "4471".
- Callobatrachus wikiPageOutDegree "28".
- Callobatrachus wikiPageRevisionID "671064348".
- Callobatrachus wikiPageWikiLink Alytidae.
- Callobatrachus wikiPageWikiLink American_Museum_of_Natural_History.
- Callobatrachus wikiPageWikiLink Amphibian.
- Callobatrachus wikiPageWikiLink Anatomical_terms_of_location.
- Callobatrachus wikiPageWikiLink Basal_(phylogenetics).
- Callobatrachus wikiPageWikiLink Category:Cretaceous_amphibians.
- Callobatrachus wikiPageWikiLink Category:Mesozoic_Asia.
- Callobatrachus wikiPageWikiLink Category:Prehistoric_amphibians_of_Asia.
- Callobatrachus wikiPageWikiLink Category_Prehistoric_animals_of_China.
- Callobatrachus wikiPageWikiLink China.
- Callobatrachus wikiPageWikiLink Chinese_Academy_of_Sciences.
- Callobatrachus wikiPageWikiLink Clade.
- Callobatrachus wikiPageWikiLink Coccyx.
- Callobatrachus wikiPageWikiLink Early_Cretaceous.
- Callobatrachus wikiPageWikiLink Frog.
- Callobatrachus wikiPageWikiLink Holotype.
- Callobatrachus wikiPageWikiLink Liaoning.
- Callobatrachus wikiPageWikiLink List_of_prehistoric_amphibian_genera.
- Callobatrachus wikiPageWikiLink Maxilla.
- Callobatrachus wikiPageWikiLink Pedicellate_teeth.
- Callobatrachus wikiPageWikiLink Phalanx_bone.
- Callobatrachus wikiPageWikiLink Premaxilla.
- Callobatrachus wikiPageWikiLink Shale.
- Callobatrachus wikiPageWikiLink Synapomorphy.
- Callobatrachus wikiPageWikiLink Taxon.
- Callobatrachus wikiPageWikiLink Vertebral_column.
- Callobatrachus wikiPageWikiLink Yixian_Formation.
- Callobatrachus wikiPageWikiLinkText "Callobatrachus".
- Callobatrachus authority "Wang & Gao, 1999".
- Callobatrachus fossilRange "Early Cretaceous,".
- Callobatrachus genus "Callobatrachus".
- Callobatrachus imageCaption "Artist's reconstruction".
- Callobatrachus imageWidth "200".
- Callobatrachus name "Callobatrachus".
- Callobatrachus parentAuthority "Wang & Gao, 1999".
- Callobatrachus species "sanyanensis".
- Callobatrachus wikiPageUsesTemplate Template:Fossilrange.
- Callobatrachus wikiPageUsesTemplate Template:Italic_title.
- Callobatrachus wikiPageUsesTemplate Template:Portal.
- Callobatrachus wikiPageUsesTemplate Template:Reflist.
- Callobatrachus wikiPageUsesTemplate Template:Speciesbox.
- Callobatrachus subject Category:Cretaceous_amphibians.
- Callobatrachus subject Category:Mesozoic_Asia.
- Callobatrachus subject Category:Prehistoric_amphibians_of_Asia.
- Callobatrachus comment "Callobatrachus is an extinct genus of discoglossoid anuran amphibian from the Early Cretaceous-age Yixian Formation of Liaoning, China. It was described in 1999 by K. Gao of the American Museum of Natural History and Y. Wang of the Chinese Academy of Sciences. Discovered in the Sihetun locality of the western part of Liaoning province, in the lower part of the Yixian Formation, the fossil dates to approximately 124.6 Ma.".
- Callobatrachus label "Callobatrachus".
- Callobatrachus sameAs Q2122942.
- Callobatrachus sameAs Callobatrachus.
- Callobatrachus sameAs m.05mz68_.
- Callobatrachus sameAs Q2122942.
- Callobatrachus wasDerivedFrom Callobatrachus?oldid=671064348.
- Callobatrachus depiction Callobatrachus.png.
- Callobatrachus isPrimaryTopicOf Callobatrachus.