References

Ordovician (Arenigian) Acritarchs from the Solanas Sandstone Formation, Central Sardinia, Italy

1989 · External reference

Diacrodien aus dem unteren Ordovizidium

1969 · External reference

Weitere organische Mikrofossilien aus dem unteren Ordovizidium

1970 · External reference

Sur un microbios d'age Tremadocien a Hassi-Messaoud

1967 · External reference

Late Arenigian (Ordovician) Acritarchs from Cis Saharan, Morocco

10.2307/1485220 · 1977 · External reference

Palynologie et stratigraphie du Cambro-Ordovicien (Libye nord-occidentale)

1975 · External reference

Micro-organismes incertae sedis (Acritarches et Chitinozoaires) de l'Ordovicien de la Prescqu'ile de Crozon (Finistere)

1969 · External reference

Biostratigraphy, palynofacies and provincialism of Late Ordovician-Early Silurian acritarchs from northeast Libya

1988 · External reference

Distribution stratigraphique des Acritarches dans le Paleozoique du Sahara Algerien

10.1016/0034-6667(74)90012-8 · 1974 · External reference

Palynostratigraphy of the Lower Palaeozoic, Cambrian to Silurian, sediments of the Heshemite Kingdom of Jordan

10.1016/0034-6667(90)90037-j · 1990 · External reference

Middle Ordovician microplankton from the Grotlingbo Borehole No. 1 in Gotland, Sweden

1971 · External reference

Morphology, ultrastructure and distribution of Palaeozoic acritarchs

1970 · External reference

Some Middle and Late Ordovician microphytoplankton from central North America

1978 · External reference

Chitinozoan and acritarch assemblages, stratigraphy and biogeography of the early Palaeozoic of Northwest Arabia

10.1016/0034-6667(88)90073-5 · 1988 · External reference

Late Ordovician acritarchs from northeast Libya

1988 · External reference

Late Ordovician palynomorphs

1985 · External reference

Tremadocian (Early Ordovician) acritarchs of the Arburest Unit, southwest Sardinia (Italy)

1985 · External reference

The stratigraphic distribution of Tremadoc acritarchs in the Shineton Shales succession, Shropshire, England

10.1016/0034-6667(74)90003-7 · 1974 · External reference

Repartition et description des Chitinozoaires Siluro-Devoniens de quelques sondages de la C.R.E.P.S., de la C.F.P.A. et de la S.N. Repal au Sahara

1960 · External reference

Acritarchs from the type area of the Ordovician Caradoc Series, Shropshire, England

1984 · External reference