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Hello! As you might have noticed, I've mostly been going through squamates (for The Big Book) lately, and I thought it was time to start compiling cladograms. Molecular phylogenies for the group are quite different from older, morphology-based analyses, and above we see the sort of topology that's now being recovered. Snakes are not consistently grouping with anguimorphs, Toxicofera is robust, and lacertoids and scincoids do not form a Scincomorpha, dibamids may or may not form a clade with gekkotans, and so on. What we see here reflects Streicher & Wiens (2017), but I'll be including 2 or 3 other, competing phylogenies.

Doing these is useful because it shows which groups I still haven't illustrated. Like... what? I haven't drawn any skinks yet?? This a draft, with more to be added. It looks ok, I think. And, my god this book is going to be full of cladograms that look like this.

All the best and thanks again for your support. There is still more than a year to go before this book is finished, alas.

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Anonymous

Wow, so geckos are really out there, doing their own thing, aren't they? What's the quick, easy answer for zoo guests who ask how snakes and lizards are related?

TetZoo

Hi. The answer is that snakes are actually a group of very unusual lizards (as you can see from the cladogram, they're deeply nested within Squamata, within 'lizards'), and that they're closely related to a group that includes iguanas and kin, and monitor lizards and kin.

Mike Traynor

So, really, snakes are merely a particularly speciose group of legless lizards.

TetZoo

Yes, exactly. Very, very weird legless lizard, but still legless lizards.