Rodeites Sahni reinvestigated-I - 1972
The Givetian flora from Cairo, New York: Rhacophyton, Triloboxylon, and Cladoxylon - 1974
Fragmentary non-vascular plant microfossils from the late Silurian of Wales - 1982
A Probable Pteridosperm from the Uppermost Devonian Near Ballyheigue, Co. Kerry, Ireland - 1982
A late Wenlock flora from Co. Tipperary, Ireland - 1983
Algae from the Rhynie Chert, Aberdeenshire, Scotland, UK - 1983
A new genus of lycopods from the Devonian of New York State - 1983
A new species of Baragwanathia from the Sextant Formation (Emsian) Northern Ontario, Canada - 1983
A new elater-bearing Late Albian pollen species from offshore eastern Saudi Arabia - 1984
A new zosterophyll from the Lower Devonian of Wales - 1986
A new Palaeozoic plant closely allied to Prototaxites Dawson - 1988
Tertiary leaves of the tribe Banksieae (Proteaceae) from south-eastern Australia - 1988
A new rhyniopsid with novel sporangium organization from the Lower Devonian of South Wales - 1989
A diverse assemblage of early land plants from the Lower Devonian of the Welsh Borderland - 1992
Permanent dyads in sporangia and spore masses from the Lower Devonian of the Welsh Borderland - 1998
Fossil palm flowers in Dominican and Mexican amber - 2002
Fossil palm flowers in Dominican and Baltic amber - 2002
New Silurian cooksonias from dolostones of north-eastern North America - 2004
A new hydrocharitacean seagrass from the Eocene of Florida - 2008
Dioscoreaceae fossils from the late Oligocene and Miocene Ethiopia - 2014