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pro vyhledávání: '"K M, Chauff"'
Autor:
K. M. Chauff
Publikováno v:
Geological Magazine. 115:205-209
SummaryThe Glen Park Member of the Sulphur Springs Formation (Devonian) in east-central Missouri contains abundant phosphate nodules. Dissolution of several nodules in hydrochloric acid yielded a diverse, well-preserved Ordovician fauna, containing d
Publikováno v:
Science. 193:571-573
Conodonts are zoologically enigmatic, toothlike phosphatic microfossils occurring in marine sedimentary rocks ranging in age from Cambrian to Triassic. Dimpled spheres of less than 1 millimeter in diameter are sporadic associates of conodonts and hav