the three living groups of lissamphibians by their possession of keratinized claw sheaths and their retention of skull bones lost in other lissamphibians, including epipterygoids, supraoccipitals and large palatines, as well as the absence of pedicellate teeth or a wide parasphenoid cultriform process. Albanerpetontids are now recognized as a distinct clade of lissamphibians separate from the three living orders of amphibians – Anura (frogs), Caudata (salamanders), and Gymnophiona (caecilians). Most studies show them as more closely related to frogs and salamanders than to caecilians, but bootstrap and Bayesian analyses show that this result is not robust and that they could also be sister-group of the Lissamphibia. The presence of epipterygoids and a separate supraoccipital at least argues against a position within Batrachia. A phylogenetic analysis in 2020 among lissamphibian relationships using multiple methods found no consensus for the position of Albanerpetontidae in relation to other lissamphibians, but they were always placed closer to lissamphibians than to other extinct groups of amphibians, such as lepospondyls and temnospondyls. Taxonomy Genus Shirerpeton Matsumoto & Evans, 2018 Shirerpeton isajii Matsumoto & Evans, 2018 Early Cretaceous, Japan Genus Wesserpeton Sweetman & Gardner 2013 Wesserpeton evansae Sweetman & Gardner 2013 Early Cretaceous, United Kingdom Genus Anoualerpeton Gardner, Evans & Sigogneau-Russell 2003 Anoualerpeton priscus Gardner, Evans & Sigogneau-Russell 2003 Middle Jurassic, United Kingdom Anoualerpeton unicus Gardner, Evans & Sigogneau-Russell 2003 Late Jurassic, Morocco Genus Celtedens McGowan & Evans 1995 Late Jurassic-Early Cretaceous, Europe Celtedens megacephalus (Costa 1864) Early Cretaceous, Italy, United Kingdom Celtedens ibericus McGowan & Evans 1995 Early Cretaceous, Spain Genus Albanerpeton Estes & Hoffstetter 1976 Albanerpeton arthridion Fox & Naylor 1982 Early Cretaceous, United States Clade "Gracile-snouted" Albanerpeton gracilis Gardner 2000 Late Cretaceous, North America Albanerpeton cifellii Gardner 1999 Late Cretaceous, United States Albanerpeton galaktion Fox & Naylor 1982 Late Cretaceous, North America Clade "Robust-snouted" Albanerpeton nexuosus Estes 1981 Late Cretaceous, North America Albanerpeton pannonicus Venczel & Gardner 2005 latest Miocene-Early Pleistocene Hungary, Italy Albanerpeton inexpectatum Estes & Hoffstetter 1976 Early Oligocene- Late Miocene, Europe Genus Yaksha Daza et al, 2020 Yaksha perettii Daza et al, 2020 Late Cretaceous, Myanmar Fragmentary remains of albanerpetontids are also known from the Bathonian aged Anoual Formation of Morocco, The Bathonian aged Aveyron locality of France, the Tithonian aged Chassiron locality of France, the Berriasian aged Cherves-de-Cognac locality and Angeac-Charente bonebed of France, Cenomanian-Turonian Khodzhakul and Bissekty Formations of Uzbekistan, originally assigned to the dubious genus Nukusaurus and the