Norell, M.A.; Clark, J.M.; Chiappe, L.M.; Dashzeveg, D.
taxonomy · topology · range · morphology · ecology · geochronology · methods
IGM 100/979 and its egg association constrain but cannot directly observe brooding behaviour.
IGM 100/979 preserves folded hindlimbs and forelimbs spread over a nest with at least fifteen visible eggs and no evident post-mortem transport; brooding and parental care are strong behavioural interpretations of the association, not directly observed actions.
claim:event:oviraptorid-igm100979-nest-associationOviraptorosauria is represented by nesting specimen IGM 100/979 from the Upper Cretaceous Djadokhta Formation; this local association does not establish the clade’s origin, complete range or a direct ancestor.
claim:taxon:oviraptorosauria