Parent taxon: Squamata according to A. Bolet and S. E. Evans 2010
Sister taxa: Ameivoidea, Amphisbaenia, Anguimorpha, Anhuisaurus, Anomalopsis, Anqingosaurus, Araeoscelomorphi, Ardeosaurus, Asagaolacerta, Bavarisaurus, Changjiangosaurus, Cryptovaranoides, Cuencasaurus, Dibamidae, Draconoidea, Eichstaettisaurus, Episquamata, Gekkonomorpha, Hakuseps, Haplodontosaurus, Harpagosaurus excedens, Hongshanxi, Hoyalacerta, Huehuecuetzpalli, Iguana haueri, Iguanomorpha, Jucaraseps, Kuroyuriella, Lacertibaenia, Lacertilia, Liushusaurus, Macrocnemidae, Megachirella, Moqisaurus, Mosasauridae, Mosasauroidea, Oculudentavis, Olindalacerta, Ophidia, Oxiella, Paikasisaurus, Palaeophidae, Paleochelco, Pangekkota, Panscincoidea, Panxantusiidae, Panxenosaurus, Paraplacosauriops, Parasaurillus, Parviraptor, Pseudosaurillus, Pythonomorpha, Sauripes, Scandensia, Scincoidea, Scincomorpha, Scleroglossa, Tedorosaurus, Thalattosauromorphi, Trachelosauridae, Vialorophis, Xestops gracilis, Yabeinosaurus, Yabeinosaurus youngi, Zanclodontidae
Subtaxa: Pedrerasaurus
Ecology: planktonic suspension feeder
Distribution: found only at La Pedrera de Meià, El Montsec (Cretaceous of Spain)