. Annual report. New York State Museum; Science; Science. 130 NEW YORK STATE MUSEUM of the mass forms a strong contrast. Of course the age of the fish beds depends on the age of the youngest fossil to be found in the boulders of these underlying beds and as yet I have seen nothing later than the Helderbergian. It is therefore possible that the sedimentation of the fish beds began before the opening of the stage we should elsewhere characterize as Upper Devonic. An additional supplementary fact is worthy of record. A large angular block of highly argillaceous black limestone, with a weight of s
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. Annual report. New York State Museum; Science; Science. 130 NEW YORK STATE MUSEUM of the mass forms a strong contrast. Of course the age of the fish beds depends on the age of the youngest fossil to be found in the boulders of these underlying beds and as yet I have seen nothing later than the Helderbergian. It is therefore possible that the sedimentation of the fish beds began before the opening of the stage we should elsewhere characterize as Upper Devonic. An additional supplementary fact is worthy of record. A large angular block of highly argillaceous black limestone, with a weight of s