Urnatopteris

Citations total:
2
link From To Geolocation Author - title Year
details Carboniferous Permian Nd Remy,W. Monosaccate pteridospermous pollen of the Carboniferous and Permian as well as general considerations of Paleozoic pollen with air sacs. 1954
details Late Carboniferous Europe Remy,W. et al. Plant fossils 1959