Timing of recovery from the end-Permian extinction: Geochronologic and biostratigraphic constraints from south China: COMMENT AND REPLY: COMMENT
Author(s) -
Hugo Bucher,
Peter A. Hochuli,
Maria Ovtcharova,
Thomas Galfetti,
Arnaud Brayard,
Nicolas Goudemand,
J. Guex
Publication year - 2007
Publication title -
geology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.609
H-Index - 215
eISSN - 1943-2682
pISSN - 0091-7613
DOI - 10.1130/g23609c.1
Subject(s) - geology , permian–triassic extinction event , paleontology , extinction event , bracketing (phenomenology) , permian , china , boundary (topology) , extinction (optical mineralogy) , archaeology , geography , demography , epistemology , biological dispersal , population , structural basin , sociology , philosophy , mathematical analysis , mathematics
[Lehrmann et al. (2006)][1] recently interpolated a new age of 247.2 Ma for the Early-Middle Triassic boundary in Guandao (Guizhou Province, south China) where four new U-Pb ages were measured from ash layers bracketing this boundary as defined by conodonts. Along with previous data of [Lehrmann et
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