Allen, K. C., 1965. Lower and Middle Devonian spores of northern and central Vestspitsbergen. Palaeontology, 8 (pt.4): 687-748.
Balme, B. E., 1962. Upper Devonian (Frasnian) spores from the Carnarvon Basin Western Australia. Palaeobotanist, 9: 1-11.
Balme, B. E., 1988. Miospores from Late Devonian (Early Frasnian) strata, Carnarvon Basin, Western Australia. Palaeontographica, Abt. B, 209 (4-6): 109-191.
Boumendjel, K., Loboziak, S., Paris, F., Steemans Ph. and Streel, M., 1988. Biostratigraphie des miospores et des chitinozoares du Silurian superieur et du Devonien dans le Bassin d' Illizi (Sahara Algeriea). Geobios, no. 21 (3): 329-357.
Cramer, F. H., 1969. Distribution of selected Silurian acritarchs. Rev. Esp. J. micropalaeont., Num. extra. 203 p.
Cramer, F. H. and Diez, M. C. R. C, 1972. North American Silurian palynofacies and their spatial arrangement acritarchs. Palaeontographica, Abt. B., 138 (5-6): 107-185.
Dorning, K. J., 1981. Silurian acritarchs from the type Wenlock and Ludlow of Shropshire, England. Rev. Palaeobot. Palynol. 34 (2): 175-203.
Ghavidel- syooki, M., 1987. Palynological study and age relationships of Faraghan Formation in Kuh-e- Gahkum and its correlation with Kuh-e- Faraghan. J. Sc. Tehran. University, 15 (1/2): 11-28.
Ghavidel- syooki, M., 1988. Palynostratigraphy and palaeoecology of the Faraghan Formation, at Kuh-e- Faraghan, southeastern Iran. Ph. D. dissertation, Michigan State University, 275 p.
Hoffmeister, W. S. 1959. Lower Silurian plant spores from Libya. Micropaleont., 5 (3): 331-334.
Johnson, N. G., 1985. Early Silurian palynomorphs from the Tuscarora Formation in central Pennsylvania and their paleobotanicad and geological significance. Rev. Palaeobot. Palynol., 45 (3/4): 307-360.
Laufeld, S., 1974. Silurian chitinozoa from Gotland, Suede. Fossils and strata, Olso: 5: 130 p.
Le Herisse, A., 1989. Acritarchs et Kystes d'algues prasinophycees du Silurien de Gotland Suede. Palaeontographica Italica, 76: 57-302.
McClure, H. A., 1988. Chitinoan and acritarch assemblages, stratigraphy and biostratigraphy of the Early Palaeozoic of northwest Arabia. Rev. Palaeobot. Palynol., 56 (1/2): 41-60.
Playford, G. and Dring, R. S., 1981. Late Devonian acritarchs from the Carnarvon Basin, Western Australia. Palaeontological Association London, special papers in palaeontology, No. 27.
Richardson, J. B. and loannides, N., 1973. Silurian palynomorphs from Tanezzuft and Acacus Formations, Tripolitania, North Africa. Micropaleontology, 19 (3): 257-307.
Smelror, M., 1987. Early Silurian acritarchs and prasinophycean algae from the Ringerike district, Olso Region (Norway). Rev. Palaeobot. Palynol., 52 (2/3): 137-159.
Turnua, E., 1986. Lower to Middle Devonian spores from the vicinity of Pioki (central Poland). Rev. Palaeobot. Palynol., 46 (3/4): 311-354.
Wicander, R., 1986. Lower Devonian (Gedinnian) acritarchs from the Haragan Formation, U. S. A. Rev. Palaeobot. Palynol., 47 (3/4): 327-365.
Wicander, R. and Wood. G., 1981. Systematics and biostratigraphy of the organic- walled microphytoplankton from the Middle Devonian (Givetian) Silica Formation, Ohio, U. S. A. A. A. SP. contribution series no. 8. 1-137.
Wicander, R. and Palyford, G., 1985. Acritarchs and spores from the Upper Devonian Lime Creek Formation, lowa, U. S. A. J. micropaleontology, 31 (2): 97- 138.