page_title: Paleobiota of the Yixian Formation
section_title: Avialans
hierarchical_section_title: Paleobiota of the Yixian Formation / Theropods / Avialans
caption_attribution_description: English: Systematics: Aves Pygostylia Euornithes Ornithurimorpha Size: 25 cm long Type Horizon and Locality: Early Cretaceous, Yixian Formation (Early Aptian), Lingyuan, Laioning Province, China Type Specimen: SRM 35-3, nearly complete articulated skeleton The fossil of this primitive bird was first mistaken for a specimen of the related Hongshanornis. It has a toothless robust beak and was a seed eater, thus its name. It was terrestrial rather than arboreal.
context_page_description: The Yixian Formation is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans about 5 million years during the early Cretaceous period. It is known for its fossils, listed below.
  The Yixian Formation is divided into the following subunits:
  Jingangshan Bed
  Dawangzhangzi Bed
  Jianshangou Bed
  Lujiatun Bed
  Basalt base
caption: Eogranivora
exif: {"Image Software": "Google"}