Graptolithina

Pterograptidae Mu, 1950

Selection of related publications
Maletz, J., Ahlberg, P. 2021. Dapingian to lower Darriwilian (Middle Ordovician) graptolite biostratigraphy and correlation of the Krapperup drill core, Scania, Sweden. GFF 143, 1, 16-39. DOI:10.1080/11035897.2020.1822439
Maletz, J., Ahlberg, P., Lundberg, F. 2020. Ordovician graptolite biostratigraphy of the Röstånga-2 drill core (Scania, southern Sweden). GFF 142, 3, 206-222. DOI:10.1080/11035897.2020.1739743
Maletz, J. 2010. Xiphograptus and the evolution of virgella-bearing graptoloids. Palaeontology 53, 2, 415-439. DOI:10.1111/j.1475-4983.2010.00940.x
Maletz, J. 2005. Early Middle Ordovician graptolite biostratigraphy of the Lovisefred and Albjära drill cores (Scania, southern Sweden). Palaeontology 48, 4, 763-780. DOI:10.1111/j.1475-4983.2005.00482.x
Maletz, J. 1997. Graptolites from the Nicholsonograptus fasciculatus and Pterograptus elegans Zones (Abereiddian, Ordovician) of the Oslo Region, Norway. Greifswalder Geowissenschaftliche Beiträge 4, 5-98.
Maletz, J. 1995. The Middle Ordovician (Llanvirn) graptolite succession of the Albjära core (Scania, Sweden) and its implication for a revised biozonation. Zeitschrift für Geologische Wissenschaften 23, 3, 249-259.
Skevington, D. 1965. Graptolites from the Ontikan Limestones (Ordovician) of Öland, Sweden. II. Graptoloidea and Graptovermida. Bulletin of the Geological Institutions of the University of Uppsala 43, 1-74.
Obut, A. M. 1960. Correlation of some parts of Estonian Ordovician and Silurian deposits according to graptolites. ENSV TA Geoloogia Instituudi uurimused V, 143-157. Eesti NSV Teaduste Akadeemia Geoloogia Instituudi Uurimused V, pp. 143-157.