Iguania is the suborder of Squamata that contains the iguanas, anoles, etc. Suborders Amphisbaenia - Worm lizards Sauria- Lizards Serpentes - Snakes Squamata (scaled reptiles) is the largest recent order of reptiles, including lizards and snakes. ... Genera Amblyrhynchus Brachylophus Conolophus Ctenosaura Cyclura Dipsosaurus Iguana Sauromalus Frost et al. ... Wikipedia does not yet have an article with this exact name. ...
One holds that the modern day Malagasy Iguania are descended from Preiguania that were already extant on that land that eventually became Madagascar.
Fossil remains of a turtle and a boa, both New World reptiles, have been found in Northern Africa, so it is possible that fossil iguanids have not been found yet.
Perhaps there were Iguania or Preiguania in what became Africa but, not being as successful as the agamids, failed to survive other than on insular Madagascar.