subclass diapsida(n = noun.animal) diapsida - used in former classifications to include all living reptiles except turtles; superseded by the two subclasses Lepidosauria and Archosauria;
is a kind of reptile, reptilian

diapsida, subclass, subclass acnidosporidia, subclass actinopoda, subclass alismatidae, subclass amphineura, subclass anapsida, subclass archaeornithes, subclass archosauria, subclass arecidae, subclass asteridae, subclass branchiopoda, subclass caryophyllidae, subclass cirripedia, subclass cnidosporidia, subclass commelinidae, subclass copepoda, subclass crossopterygii, subclass dibranchia, subclass dibranchiata, subclass dilleniidae, subclass dipnoi, subclass discomycetes, subclass elasmobranchii, subclass entomostraca, subclass euascomycetes, subclass euryalida, subclass eutheria, subclass exopterygota, subclass hamamelidae, subclass heterobasidiomycetes, subclass holocephali, subclass homobasidiomycetes, subclass infusoria, subclass lepidosauria, subclass liliidae, subclass magnoliidae, subclass malacostraca, subclass metatheria, subclass ophiurida, subclass opisthobranchia, subclass ostracoda, subclass pantotheria, subclass phytomastigina, subclass prototheria, subclass rhizopoda, subclass rosidae, subclass selachii, subclass synapsida, subclass teleostei, subclass telosporidia, subclass zoomastigina