簡介
學名:Longcbengornis sanyanensis Hou,1997
時代:早白堊世,九佛堂組
產地:;遼寧省朝陽縣波羅赤。
學名來源
:sanyan,漢語拼音“三燕”,為前燕341年十六時期,鮮卑建立的前燕、後燕和北燕地方政權,以當年的龍城,即現在的朝陽市為都城。
保存狀況:不完整個體。
基本特徵
:頂骨後位,頸椎有一腹脊,胸椎椎體長。尾椎不癒合,仍有較長的尾巴。肱骨近端較華夏鳥擴展,近端中央有一大而圓的坑凹構造,骨體直。肱骨稍短於恥骨,叉骨細,叉骨突很長。薦椎不癒合,趾爪強烈鉤曲,營樹棲生活。體態輕巧。但仍顯示出較原始的性質,如尚無尾綜骨等。
age: Early Cretaceous;Jiufotang Formation.
locality: Boluochi,Chaoyang City,Liaoning Province,China.
etymology: Genus name is from the ancient name of Chaoyang;species is from the name of an ancient local regime.
preservation: An complete individual.
diagnosis:Parietal posteriorly located.Cervical with ventral process.Thoracic with long centrum.Caudals unfused.Long tail.Humerus more expanded proximally than in Catbayornis,shaft straighe.Furcula slender with long hypocleideum.Sacrls unfused.Pedal claws strongly curved.Pygostyle absent.