摘要
AnewootypecollectedfromtheUpperCretaceousLijiacunFormationintheShangdanBasin,ShaanxiProvinceisdescribedinthispaper.Basedongeneralexternalshape,size,eggshellthicknessandhoneycomb-likeeggshellmicrostructure,eggsarereferabletotheoofamilyFaveoloolithidae.ComparedwithothermembersofFaveoloolithidae,specimensdescribedinthispapershowspecialcharacteristics:adjacentporesareusuallyseparatedbytwoeggshellunitsbetweenwhichoftendevelopinterspaces;columnareggshellunitsarerelativelycloselyarrangedinradialview.Accordingtothesecharacteristics,weerectanewoogenusandanewoospecies:Duovallumoolithusshangdanensisoogen,etoosp.nov.ThenewdiscoveryexpandsthediversityofFaveoloolithidae.
出版日期
2018年03月13日(中国期刊网平台首次上网日期,不代表论文的发表时间)