Maiasaura
/ˌmʌɪəˈsɔːrə/Palaeontology
noun
A Late Cretaceous genus of large duck-billed dinosaurs, the members of which are notable for the association of some of their remains with nests containing eggs and young, with evidence of parental care and of colonial nesting at traditional sites.
Origin
1970s. From scientific Latin Maiasaura from ancient Greek μαῖα (foster) mother or midwife + σαύρα lizard.