Leiocephalikon

{{Short description|Extinct genus of tetrapods}}

{{Automatic taxobox

| fossil_range = Carboniferous

| image = Leiocephalikon (clear).jpg

| image_caption = Leiocephalikon problematicum

| taxon = Leiocephalikon

| authority = Steen, 1934

| type_species = Amblyodon problematicum

| type_species_authority = John William Dawson, 1882

}}

Leiocephalikon is an extinct genus of microsaur in the family Gymnarthridae. The type species is Amblyodon problematicum named by John William Dawson in 1882.{{cite journal |author=J.W. Dawson |date=1882 |title=On the Results of Recent Explorations of Erect Trees Containing Animal Remains in the Coal-Formation of Nova Scotia |journal=Philosophical Transactions of the Royal Society of London |volume=173 |pages=621–668}} Its fossil was found in the Joggins Formation which hailed from Carboniferous period.{{Cite book |last=Carroll |first=Robert |doi=10.56021/9780801891403 |title=The Rise of Amphibians |date=2009 |publisher=Johns Hopkins University Press |isbn=978-0-8018-9140-3}} Although sometimes regarded as primitive gymnarthrids, Leiocephalikon classification is still debated as its fossil is scarce.{{Cite journal |last=Huttenlocker |first=Adam K. |last2=Pardo |first2=Jason D. |last3=Small |first3=Bryan J. |last4=Anderson |first4=Jason S. |date=2013-05-07 |title=Cranial morphology of recumbirostrans (Lepospondyli) from the Permian of Kansas and Nebraska, and early morphological evolution inferred by micro-computed tomography |journal=Journal of Vertebrate Paleontology |language=en |volume=33 |issue=3 |pages=540–552 |doi=10.1080/02724634.2013.728998 |issn=0272-4634}}