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Tầng Tầng lớp Itaewon Tầng đối lưu Tầng Apt Tầng Champagne Tầng Anisia Tầng Carnia Tầng Noria Tầng ngậm nước Tầng LadiniaTài liệu tham khảo
WikiPedia: Tầng Ladinia http://stratigraphy.science.purdue.edu/charts/Time... http://stratigraphy.science.purdue.edu/charts/Time... http://pubs.usgs.gov/fs/2007/3015/fs2007-3015.pdf http://www.stratigraphy.org/ICSchart/ChronostratCh... http://www.stratigraphy.org/ICSchart/ChronostratCh... http://www.stratigraphy.org/bak/geowhen/stages/Lad... https://d-nb.info/gnd/4367116-0 https://web.archive.org/web/20060518100851/http://... https://web.archive.org/web/20060518101406/http://... https://web.archive.org/web/20100822030237/http://...