 The skull and mandibles were the first elements described in 2007, while the postcranial skeleton was described in 2009.An even more complete specimen, ZMNH M8742, was described in 2010.This specimen is one of the most complete thalattosaur skeletons known and also depicts pelvic, metatarsal, and coracoid features different from those of the holotype, showing instances of individual variation within the genus.