Abacum normale

Citations total:
Author - title
original Middle Cambrian Tremadocian Spain Fombella,M.A. Acritarchs of the Oville Formation, Middle Cambrian-Tremadocian age, Province of Leon, Spain. 1978
details Cambrian Tremadocian USSR(Estonian SSR) Volkova,N.A. The age of the Ulgazek Series at the Cambrian - Ordovician contact in Estonia. 1982
details Middle Cambrian Early Tremadocian Spain Fombella,M.A. Palynology of the Oville Formation, north and south Cantabrian Mountains. 1978
details Middle Cambrian Early Ordovician Spain Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. 1990
details Ashgillian Early Llandoverian Czechoslovakia VavrdovЎ,M. New acritarchs and miospores from the Late Ordovician of Hlasna Treban, Czechoslovakia. 1989
details Late Ordovician Czechoslovakia VavrdovЎ,M. Some plant microfossils of possible terrestrial origin from the Ordovician of Central Bohemia. 1984
details Early Tremadocian Spain Fombella Blanco,M.A. Diachronism and palynology of the Cambrian-Ordovician transition of the Province of Leon, northern Spain 1986
details Late Ordovician Czechoslovakia VavrdovЎ,M. Further acritarchs and terrestrial plant remains from the Late Orovician at Hlasna Treban (Czechoslovakia) 1988