河南西峡盆地恐龙蛋化石的研究

A STUDY OF DINOSAURIAN FOSSIL EGGS FROM THE XIXIA BASIN, HENAN

西峡盆地恐龙蛋化石十分丰富，目前已有7科9属18种，主要产于高沟组、马家村组中，含蛋层约有20层，密集区与冲、洪积扇群的分布基本一致，具有种类多、密集分布、多种埋藏形式、完好的原始状态、古生态内涵特征丰富等特点。根据地层、沉积、岩相、古地理、蛋化石埋藏情况等，对恐龙蛋化石类型、埋藏方式、分布、蛋壳矿物、化学成分、碳氧同位素组成、蛋窝和蛋的排列、产蛋方式、密集原因等作了深入分析，并对DNA、胚胎检测作了简述。建议建立“国家级恐龙蛋化石地质古生物遗迹保护区”，进而争取列入“世界自然遗产名录”。

： The Xixia basin has produced many dinosaurian fossil eggs which can be grouped into 7 families, 9 genera, and 18 species, and which occurred largely in the Gaogou Formation and the Majiacun Formation, in which about 20 beds contain fossil eggs． These eggs were concentrated basically in a group of torrential fans, and are characterized by rich variety, dense distribution, diverse burial forms, good preservation, and richness in paleoecologic forms． Based on stratigraphy, sedimentology, lithofacies, paleogeography, and burial conditions of the fossil eggs, an intensive analysis has been made on the fossil types, burial forms, distribution, egg shell minerals, chemical composition, carbon and oxygen isotopic compositions, arrangement of egg nests and eggs, egg－laying forms, and the cause of dense distribution． A brief account has also been given on DNA and embryonic testing． The authors recommend to establish a State Protection Area for Dinosaurian Fossil Eggs as geological paleontology remains, and hope that this area will enter into the Directory of the World＇s Natural Heritage．