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Callograptus
Stratigraphic Distribution and Suggested Evolution of Dendroid Graptolites from the Silurian of Eastern Australia
Catalog of Paleontological Type Specimens in the Geological Museum, University of Minnesota
Revista Del Iiicahgeo
The Cambrian System in Northwestern Argentina: Stratigraphical and Palaeontological Framework Geologica Acta: an International Earth Science Journal, Vol
North American Geology, Paleontology, Petrology, and Mineralogy
University Microfilms International 300 North Zeeb Road Ann Arbor, Michigan 48106 USA St
Dendroid and Tuboid Graptolites from the Llandovery (Silurian) of the Four Mile Creek Area, New South Wales
Brief Report Acta Palaeontologica Polonica 59 (4): 921–926, 2014
Graptolites from the Ontikan Limestones of Öland
33Rd NYSGA Annual Meeting 1961
Copyrighted Material
Ordovician Graptolites of Thevbasin Ranges in California, Nevada Utah
Systematics of Pterobranchs from the Cambrian Period Burgess Shales of Canada and the Early Evolution of Graptolites
Geology of the Eagle-Circle District, Alaska
Early Silurian Dendroid Graptolites 307
Ordovician of the World
The Ordovician Exposed
Dendroid Graptolites from the Cotton Formation Near Forbes, New South Wales
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