Author:
Burgess,N.D.;Edwards,F.L.S.
Year:
1991
Title:
Classification of Uppermost Ordovician to Lower Devonian tubula and filamentous macerals from the Anglo-Welsh Basin.
Reference:
Burgess,N.D. et al. (1991) Classification of Uppermost Ordovician to Lower Devonian tubula and filamentous macerals from the Anglo-Welsh Basin. Botanical Journal of the Linnean Society Vol. 106 # 1 P. 41- 66
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Genus Species Country(Region) From To
Porcatitubulus Porcatitubulus Wales(Glamorgan) Late Wenlockian
Porcatitubulus Porcatitubulus annulatus sp. nov. Wales(Glamorgan) Late Wenlockian
Porcatitubulus Porcatitubulus annulatus Wales(Glamorgan) Wenlockian Gedinnian
Porcatitubulus Porcatitubulus spiralis sp. nov. Wales(Glamorgan) Late Wenlockian
Porcatitubulus Porcatitubulus spiralis Wales(Glamorgan) Wenlockian Gedinnian