References cited
- BATTEN , D.J. and KOVACH , W.L. in press . Catalog of Mesozoic and Tertiary megaspores . American Association of Stratigraphic Palynologists Contributions Series ,
- BERTELSEN , F. and MICHELSEN , O. 1970 . “ Megaspores and ostracods from the Rhaeto‐Liassic section in the boring Rødby No. 1, southern Denmark ” . In Danmarks Geologiske Undersøgelse , 2nd Series Vol. 94 , 60 17 pl
- BRAMAN , D.R. and HILLS , L.V. 1980 . The stratigraphic and geographic distribution of Carboniferous megaspores . Palynology , 4 : 23 – 41 .
- DIJKSTRA , S J . 1951 . Wealden megaspores and their stratigraphical value . Mededelingen van de Geologische Stichting, Nieuwe Serie , 5 : 7 – 22 . 2 pl
- GUNTHER , P.R. and HILLS , L.V. 1972 . Megaspores and other palynomorphs of the Brazeau Formation (Upper Cretaceous), Nordegg area, Alberta . Geoscience and Man , 4 : 29 – 48 .
- GRY , H. 1969 . Megaspores from the Jurassic of the island of Born‐holm, Denmark . Meddelelser fra Dansk Geologiske Forening, København , 19 : 69 – 89 .
- HARLAND , W.B. , COX , A.V. , LLEWELLYN , P.G. , PICKTON , C.A.G. , SMITH , A.G. and WALTERS , R. 1982 . A geological time scale. , 131 Cambridge : Cambridge University Press .
- HUGHES , N.F. 1958 . Palaeontological evidence for the age of the English Wealden . Geological Magazine , 95 : 41 – 49 .
- MARCINKIEWICZ , T. 1962 . Megaspory retyku i liasu z wiercenia Mechowo kolo Kamienia Pomorskiego i ich Wartość stratygraficzna . Instytut Geologiczny, Prace , 30 : 469 – 493 . 13 pl. (Russian and English summaries)
- _____ . 1971a . Stratygrafia retyku i liasu w Polsce na podstawie badań megasporowych . Instytut Geologiczny, Prace , 65 : 58 22 pl. (Russian and English summaries)
- _____ . 1971b . Importance of megaspores in stratigraphy of epicontinental Rhaetic and Liassic deposits in Poland . Mémoires du Bureau de Recherches Géologiques et Minières , 75 : 193 – 198 . (French summary)
- _____ . 1980 . Jurassic megaspores from Grojec near Kraków . Acta Palaeobotanica , 21 : 37 – 60 . 14 pl
- SINGH , C. 1964 . Microflora of the Lower Cretaceous Mannville Group, east‐central Alberta . Bulletin of the Research Council of Alberta , 15 : viii – 239 .
- _____ . 1971 . Lower Cretaceous microfloras of the Peace River area, northwestern Alberta . Bulletin of the Research Council of Alberta , 28 : vi+299
- _____ . 1983 . Cenomanian microfloras of the Peace River area, northwestern Alberta . Bulletin of the Research Council of Alberta , 44 : viii+322
- SWEET , A.R. 1979 . Jurassic and Cretaceous megaspores . American Association of Stratigraphic Palynologists Contributions Series , 5B : 1 – 30 .
- TSCHUDY , R.H. 1976 . Stratigraphic distribution of species of the megaspore genus Minerisporites in North America . United States Geological Survey, Professional Paper , 743‐E : 1 – 11 . 4 pl
- Present Address: Institute of Earth Studies, The University College of Wales, Aberystwyth, Wales, SY23 3DB, United Kingdom