河南白垩纪恐龙动物群研究

Our focus is on the study of dinosaurian faunas and their related issues such as stratigraphy and paleoenvironments. These two fanuas were discovered under the support of the previous grant of the National Nature Science Foundation of China. These two faunas are: The Ruyang Gigantic Sauropod Dinosaurian Fauna, which is dominated by large-sized sauropods, from the late Early Cretaceous to early Late Cretaceous of the Ruyang Basin, and the Late Cretaceous Luanchuan Fauna, which is dominated by small theropod dinosaurs. With regard to the study ofthe Ruyang Gigantic Sauropod Dinosaurian Fauna, we will mainly study the systematics, evolution and histological ontogenetic stages among the sauropods. We will also describe the coeval small theropods, iguanodontians, and compare them with other contemporary fanuas from home and abroad, to better understand the evolution of the paleoenvironment and biodiversity. For the Luanchuan Fauna, we mainly concentrate on the study of the small theropods. Based on the complete section, we will collect samples systematically and analyze their isotopes in order to conduct a study of the paleoenvironment and paleoecology. Comparisons of the Late Cretaceous dinosaurian faunas from the Nanxiong Basin of Guangdong,the Ganzhou Basin of Jiangxi Province, the Tianzhen of Shanxi Province and the Southern Gobi of Mongolia will be made. For a complete understanding the dinosaurian faunas from southwestern Henan, we will make a survey of the dinosaur faunas and stratigraphic correlations in the neighboring areas such as Shanyang Basin of Shaanxi Province and the Xixia-Neixiang districts of Nanyang City.

主要继续研究在上一个自然基金项目资助下发现的恐龙动物群：即介于早白垩世晚期和晚白垩世早期之间的以大型蜥脚类恐龙为主的汝阳巨型恐龙动物群和晚白垩世中晚期以小型兽脚类恐龙为主的栾川动物群，以及研究与之有关的地层、古气候环境的问题。在汝阳巨型恐龙动物群中，依据新的化石材料主要侧重某些大型蜥脚类恐龙的演化关系及组织学的个体发育阶段研究，同时对其伴生的小型兽脚类、植食性的禽龙类进行详细的描述对比，并且与国内外其它地区同时代动物群进行对比，从而更好地了解它们赖以生存的古生态环境问题及多样性问题。对于栾川动物群，主要侧重于小型兽脚类恐龙的研究，基于完整的地层序列进行系统采样，进行同位素研究，分析其古环境古生态，并且与广东南雄盆地、江西的赣州盆地、山西天镇及蒙古南戈壁的晚白垩世的恐龙动物群进行对比。其次对临近的陕西山阳盆地、南阳的西峡-内乡地区进行恐龙考察及地层对比，以有助于更全面地了解豫西南恐龙动物群

主要研究河南栾川晚白垩世的栾川动物群及与其层为相当的江西赣州的恐龙化石、继续研究汝阳盆地的蜥脚类恐龙化石及与其层为相当的热河生物群的爬行动物化石。在基金项目的资助下，命名了一个新的晚白垩世恐龙动物群——赣州恐龙动物群；命名了9个恐龙新属种：迷你豫龙、汝阳云梦龙、江西南康龙、赣州江西龙、赣州华南龙、泥潭通天龙、中国赣南龙、中国虔州龙, 驰龙类的孙氏振元龙；命名了一个蜥蜴新属种：栾川伏牛蜥；命名了两个翼龙新属种：东方颌翼龙及刘氏盘古翼龙；命名了一个哺乳动物：中原豫俊兽；两个爬行动物脚印：东阳翼龙脚印及六盘水宁夏脚印。新发现霸王龙类化石—虔州龙，在此基础上建立霸王龙类一新亚科：分支龙亚科。该发现为研究霸王龙类演化、生活习性及古地理分布等提供重要证据。孙氏振元龙的发现，为研究辽宁驰龙类恐龙的多样性、鸟类羽毛以及飞行起源提供了十分重要的依据，进一步揭示了驰龙类的系统发生，以及辽宁驰龙演化的复杂性。迷你豫龙是目前世界上最新的窃蛋龙类化石。南康龙、江西龙、华南龙及通天龙的发现，为研究赣州地区的窃蛋龙类的古地理分布、系统演化及生活习性具有重要的意义。河南汝阳盆地、栾川盆地以及江西赣州地区的含恐龙化石地层也初步进行了对比研究，取得了一定的成果。发表基金第一标注文章21篇，专著1部。