Physiology of dinosaurs and that this was a feature they shared with birds. In 2007 Oliver Wings reviewed references to gastroliths in scientific literature and found considerable confusion, starting with the lack of an agreed and objective definition of "gastrolith". He found that swallowed hard stones or grit can assist digestion in birds that mainly feed on grain but may not be essential—and that birds that eat insects in summer and grain in winter usually get rid of the stones and grit in summer. Gastroliths have often been described as important for sauropod dinosaurs, whose diet of vegetation required very thorough digestion, but
Russian given name dubbed "anthroponymic bang". According to Russian naming tradition in official speech people are addressed by their name followed by a patronymic. In official situations one's given name is always written or spoken in its legal form (name given at birth and documented in papers like birth certificate and passport). Prior to October Revolution canonical form was considered official. It was documented in baptismal register books. However, in birth certificate and other documents a secular form was used. Arising ambiguity was not considered important and didn't cause any legal consequences. In baptismal register books people bearing names Yuriy and Egor appeared