古脊椎动物学报2022，Vol.60Issue(1)：69-79,11.DOI:10.19615/j.cnki.2096-9899.211222
江西上高石笋蛋类恐龙蛋的发现
Discovery of Stalicoolithidae in Shanggao County,Jiangxi Province,China
摘要
Abstract
Here we describe a partially-preserved dinosaur clutch with twelve nearly complete eggs discovered in Shanggao County,Jiangxi Province that can be assigned to Coralloidoolithus shizuiwanensis.These dinosaur eggs are nearly spheroid in shape,with an average polar axis of l 1.8 cm and an average equatorial diameter of 9.8 cm.The eggshell has a maximum thickness of about 2.5 mm and is composed of a thin cone layer and a multilevel columnar layer,the latter of which can be divided into inner,medial and outer zones.There are dense horizontal growth lines in the inner zone,lamellar and speckled dark materials in the medial zone,and the secondary eggshell units are distributed in the medial and outer zones.According to this discovery,we revise the main taxonomic characteristic of Coralloidoolithus in the Stalicoolithidae to be the loose and dark materials in the medial zone of the columnar layer.This discovery not only extends the paleogeographic distribution of Coralloidoolithus shizuiwanensis,but also provides comparative evidence of the Late Cretaceous strata in the Shanggao red basin.关键词
江西上高/晚白垩世/恐龙蛋/石笋蛋类Key words
Shanggao County,Jiangxi Province/Late Cretaceous/dinosaur eggs/Stalicoolithidae分类
生物科学引用本文复制引用
方开永,刘清华,王强,朱旭峰,邓里,刘遇春,文军,汪筱林..江西上高石笋蛋类恐龙蛋的发现[J].古脊椎动物学报,2022,60(1):69-79,11.基金项目
国家自然科学基金(批准号:41688103,41672012)和中国科学院战略性先导科技专项(XDB26000000)资助. （批准号:41688103,41672012）
