Graptolithina

Petalolithus Suess, 1851

Selection of related publications
Maletz, J., Ahlberg, P., Suyarkova, A., Loydell, D. K. 2014. Silurian graptolite biostratigraphy of the Röstånga-1 drill core, Scania – a standard for southern Scandinavia. GFF 136, 1, 175-178. DOI:10.1080/11035897.2013.865665
Loydell, D. K., Männik, P., Nestor, V. 2003. Integrated biostratigraphy of the lower Silurian of the Aizpute-41 core, Latvia. Geological Magazine 140, 2, 205-229. DOI:10.1017/S0016756802007264
Ulst, R. 1986. Features of the structure proksimpli some Llandovery graptolites Latvia. Biofacies and fauna of the Silurian and Devonian basins of the Baltic, pp. 22-24.
Paškevičius, J. 1979. Biostratigraphy and Graptolites of the Lithuanian Silurian.
Kaljo, D. (ed) 1970. The Silurian of Estonia.
Kaljo, D., Vingisaar, P. 1969. On the sequence of the Raikküla stage in southernmost Estonia. Eesti NSV Teaduste Akadeemia Toimetised. Keemia, Geoloogia / Известия Академии наук Эстонской ССР. Химия. Геология 18, 3, 270-277.
Gailite, L. K., Rybnikova, M. V., Ulst, R. Ž. 1967. Stratigraphy, fauna and conditions of formation of the Silurian rocks of the Central Baltic.
Thorslund, P. 1948. On the Silurian beds above the Pentamerus limestone in Jemtland. Description of fossils. Sveriges Geologiska Undersökning 42, 3, 1-37.