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RI-35 Middle and Late Ordovician Lithostratigraphy and Biostratigraphy of the Upper Mississippi Valley

open access: yes, 1987
Sloan, Robert E.. (1987). RI-35 Middle and Late Ordovician Lithostratigraphy and Biostratigraphy of the Upper Mississippi Valley.
Sloan, Robert E.
core  

Graptolite community responses to global climate change and the Late Ordovician mass extinction. [PDF]

open access: yesProc Natl Acad Sci U S A, 2016
Sheets HD   +6 more
europepmc   +1 more source

New exceptionally preserved arthropod from the Furongian of Canada. [PDF]

open access: yesBMC Biol
Bicknell RDC   +4 more
europepmc   +1 more source

A paleoecological trophic network model of the Early Ordovician Lower Fezouata Shale (Morocco) fossil fauna. [PDF]

open access: yesiScience
Soucy CP   +6 more
europepmc   +1 more source

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