from the GNU version of the Collaborative International Dictionary of English
- n. A superfamily (or suborder) of New World lizards including the Iguanidae.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. New World lizards
Sorry, no etymologies found.
That is what is making the interpretation of the toxin secretion in iguania so puzzling.
The venom results do not contribute to the terrestrial vs aquatic debate but rather show a shared history between snakes + iguania + anguimorpha of venom, evolving in the common ancestor to these three lineages.
Except that venom was not evolved in the varanids, it started in the common ancestor of iguania + serpentes + anguimorpha.
Particularly when lineages like serpentes, iguania and anguirmorpha have undergone such rapid radiation and diversification.