here and here we looked at what I thought was a novel nesting for terrestrial and aquatic (sighted) snakes with geckos (and blind snakes nest with Lanthanotus.) Then I ran across several previous cladograms that recovered the same or similar data with regard to snakes and geckos. Here they are (Figs. 1-4). Seems as though geckos and snakes have been flirting with one another in several prior cladograms.
Evans and Barbadillo 1998 nested snakes with geckos, Dibamus and amphisbaenids, but apart from Ardeosaurus and Eichstaettisaurus, which the large reptile tree nested with basal snakes, like Adriosaurus and Pontosaurus. Note the nesting of suprageneric taxa, rather than generic taxa. Note to readers: Try to use species or specimens and let the clades form by themselves without presupposing even the most obvious suprageneric clades. Bavarisaurus, by the way, is not a squamate, but nests outside of the Squamata in the large reptile tree.
Caldwell 1999 sort of nested geckos with snakes, but only because that node was unresolved with regard to other clades too.
Evans and Wang 2005 nested geckos + skinks with snakes + amphisbaenids. Here three taxa in blue boxes nest outside of the Squamata in the large reptile tree.
Wu et al. 1996 nested snakes with geckos and Dibamus.
So when did things change?
Caldwell 1999 connected snakes with mosasaurs and resurrected Pythonomorpha.
Conrad 2008 nested snakes with amphisbaenids.
Gauthier et al. 2012 also nested both blind burrowing and sighted terrestrial/aquatic snakes with amphisbaenids. Here (Fig. 6) it is interesting to note how close Adriosaurus and Pontosaurus nest with Eichstaettisaurus and the geckos.
Jucaraseps is a key taxon that has been largely overlooked. It has the first loose premaxilla in the lineage. Even so, the removal of about five taxa on both sides of Jucaraseps are needed in the large reptile tree to shift terrestrial snakes with blind snakes.
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