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III.—On the Occurrence of the Genus Dalmanites in the Lower Carboniferous Rocks of Ohio
Published online by Cambridge University Press: 01 May 2009
Extract
Of the abounding Trilobites which mark the faunas of the Lower and Middle Palæozoic rocks few survive into the Upper Palæozoic. Three genera, if indeed they really deserve that name, have been described from the Carboniferous beds in England—Phillipsia, Griffithides and Brachymetopus. Only the first of these is yet known to occur in American Palæozoic strata. But on the other hand two species of Proetus have been announced from America—a genus not yet recognized in England. It is true that the distinctions are so slight that possibly these last might be as correctly referred to Phillipsia as to Proetus.
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References
page 303 note 1 Dr. Woodward noticed a pygidium of Proetus from the Carboniferous Limestone of Dublin. See Geol. Mag. 1883, p. 446 (woodcut). — Edit. Geol. Mag.
page 303 note 2 Assigned in Miller's Catalogue of N. A. Palæozoic Fossils to the Chemung Gr.
page 304 note 1 Omitted from Miller's Catalogue.
page 304 note 2 Assigned to the Coal-measures in Miller's Catalogue.
page 304 note 3 In writing this sentence, 1875, Prof. Meek seems to have forgotten his own Proetus ellipticus of 1865, and Prof. Hall's Proetus auriculatus of 1861, the former from the Kinderhook, and the latter from the Waverley Sandstone.
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