title: Comment on "Impact ejecta layer from the mid-Devonian: possible connection to global mass extinctions".
authors.affiliation: Department of Earth Sciences, University of Silesia, PL-41-200, Sosnowiec, Poland. racki@us.edu.pl
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Racki
authors.forename: Christian
authors.initials: C
authors.lastname: Koeberl
mesh_terms: D000818:Animals; D017753:Ecosystem; D019015:Geologic Sediments; D008280:Magnetics; D019110:Meteoroids; D012623:Seawater; D013995:Time