What are the closest relatives of the hot-spring snakes (Colubridae, Thermophis), the relict species endemic to the Tibetan Plateau?

This publication has 36 references indexed in Scilit:

• Higher-level phylogeny of Asian and American coralsnakes, their placement within the Elapidae (Squamata), and the systematic affinities of the enigmatic Asian coralsnake Hemibungarus calligaster (Wiegmann, 1834)
  Zoological Journal of the Linnean Society, 2007
• How and when did Old World ratsnakes disperse into the New World?
  Molecular Phylogenetics and Evolution, 2007
• Phylogeographic structure and historical demography of the western diamondback rattlesnake (Crotalus atrox): A perspective on North American desert biogeography
  Molecular Phylogenetics and Evolution, 2007
• Bayesian mixed models and the phylogeny of pitvipers (Viperidae: Serpentes)
  Molecular Phylogenetics and Evolution, 2006
• Phylogenetic Relationships of North American Garter Snakes (Thamnophis) Based on Four Mitochondrial Genes: How Much DNA Sequence Is Enough?
  Molecular Phylogenetics and Evolution, 2002
• Molecular Systematics and Evolution of Regina and the Thamnophiine Snakes
  Molecular Phylogenetics and Evolution, 2001
• MITOCHONDRIAL DNA PHYLOGEOGRAPHY OF THE POLYTYPIC NORTH AMERICAN RAT SNAKE (ELAPHE OBSOLETA): A CRITIQUE OF THE SUBSPECIES CONCEPT
  Evolution, 2000
• Supraspecific taxa as terminals in cladistic analysis: implicit assumptions of monophyly and a comparison of methods
  Biological Journal of the Linnean Society, 1998
• Mitochondrial DNA Sequence Divergence and Phylogenetic Relationships among Eight Chromosome Races of the Sceloporus Grammicus Complex (Phrynosomatidae) in Central Mexico
  Systematic Biology, 1994
• The Neotropical Colubrid Snake Fauna (Serpentes: Colubridae): Lineage Components and Biogeography
  Systematic Zoology, 1985