https://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/fullf.web&search1=R=211849
Natural Resources Canada, 2000
The graptolites Climacograptus (Diplacanthograptus) spiniferus Ruedemann and Amplexograptus praetypicalis Riva have been identified from the base of the...
Rapport