CAJ | 학술논문

山东诸城是中国以晚白垩世大型鸭嘴龙类为主的恐龙化石产地。本文从化石埋藏地地质背景、埋藏沉积相与古水流、骨骼化石分布、改造与聚集特征及分类学、骨骼化石微观组构和埋藏模型等方面，系统阐述了诸城晚白垩世恐龙骨骼化石埋藏学特征。诸城晚白垩世晚期（火山岩长石Ar-Ar年龄为76．2～73．5Ma）恐龙化石主要集群埋藏于冲积扇泥石流（DF）、洪泛平原（FP）与辫状河道（BRC）沉积层中，化石密集、成层分布，但残体骨骼层内骨骼化石大小、形状混杂、疏密不均、属种的单-以及残体骨骼大小、形状和规模不等，多数骨骼化石为不完整的长柱状、板状形态，骨骼呈定向排列，具有短距离搬运、异地快速埋藏及集群埋藏特点。沉积物及薄片分析显示，诸城恐龙生存及骨骼化石埋藏的环境为半干旱-干旱气候条件。埋藏-保存模式可概括为：恶劣的生存环境-恐龙批量死亡-遗体腐烂-骨骼被洪流或泥石流冲刷、搬运至目前沉积场所-快速掩埋-浅埋藏成岩-地壳抬升暴露。诸城恐龙化石埋藏学的研究，为我们了解和恢复中国华北地区晚白垩世时期的古地理、古环境和古气候提供了依据。
산동제성시중국이만백성세대형압취룡류위주적공룡화석산지。본문종화석매장지지질배경、매장침적상여고수류、골격화석분포、개조여취집특정급분류학、골격화석미관조구화매장모형등방면，계통천술료제성만백성세공용골격화석매장학특정。제성만백성세만기（화산암장석Ar-Ar년령위76．2～73．5Ma）공룡화석주요집군매장우충적선니석류（DF）、홍범평원（FP）여변상하도（BRC）침적층중，화석밀집、성층분포，단잔체골격층내골격화석대소、형상혼잡、소밀불균、속충적단-이급잔체골격대소、형상화규모불등，다수골격화석위불완정적장주상、판상형태，골격정정향배렬，구유단거리반운、이지쾌속매장급집군매장특점。침적물급박편분석현시，제성공룡생존급골격화석매장적배경위반간한-간한기후조건。매장-보존모식가개괄위：악렬적생존배경-공룡비량사망-유체부란-골격피홍류혹니석류충쇄、반운지목전침적장소-쾌속엄매-천매장성암-지각태승폭로。제성공룡화석매장학적연구，위아문료해화회복중국화북지구만백성세시기적고지리、고배경화고기후제공료의거。
Resources of dinosaur fossils in China are the most abundant in the world.So far,Zhucheng City of China has become a significant Late Cretaceous locality of dinosaur fossils,represented by the large hadrosaurs.Based on investigation and research of taphonomy characteristics of dinosaur fossils from Late Cretaceous ,this article systematically demonstrates the taphonomy characteristics of dinosaurs fossil bones from Late Cretaceous and analyzes the taphonomy geological background,the taphonomic sedimentary facies and paleocurrent,the distribution,modification and gathering characteristics of fossil bones and taxonomy,the micro fabric and taphonomic model for the bone fossils,etc.Dinosaur fossil clusters of Late Cretaceous (the dating of feldsparArAr age is 76. 2~73. 5 Ma)in Zhucheng City,are mostly buried in the alluvial fan debris flow(DF)and flood plain(FP)and the braided river channel(BRC).Fossils are densely distributed in stratification,which are of assorted sizes,non equidensity,singular species,and different in sizes,shapes and standards of residue bones.The majority of fossil bones are damaged without leaving intact fossil bones,being of the columnar and tabular shapes.Larger bones are arranged in certain direction,reflecting the features of dinosaur fossil clusters’taphonomy and sedimentation undergoing the shortrange transport allochthonously and fast burial.The sedimentary petrology and the thin section analysis reveal that the geologic climate of Zhucheng under which the dinosaurs lived and the fossil bones buried is featured with semiaridarid condition.The taphonomypreservation pattern of dinosaurs can be summarized as:poor living environmentdinosaurs ’massive deathbodies ’decaybones ’washed out and transported by flood or debris flowfast burialshallow burial diagenesisexposure by the Crust uplift.The research on Late Cretaceous Dinosaur taphonomy of Zhucheng provide a series of evidences to better understand and reconstructure the Cretaceous paleogeography,Paleoclimate and paleoenvironment.