Graptolithina
Family

Sigmagraptidae Cooper et Fortey, 1982

Selection of related publications
Maletz, J. 2023. The Lower Ordovician (Tremadocian to Floian) graptolite fauna of Hunneberg, Västergötland, Sweden. Fossils and Strata 69, 1-140. Scandinavian University Press. DOI:10.18261/9788215070872-2023-01
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
Vento, B. A., Toro, B. A., Maletz, J. 2012. New insights into the paleobiogeography of the Early Ordovician graptolite fauna of northwestern Argentina. Comptes Rendus Palevol 11, 5, 345-355. DOI:10.1016/j.crpv.2012.02.002
Egenhoff, S., Maletz, J. 2007. Graptolites as indicators of maximum flooding surfaces in monotonous deep-water self successions. Palaios 22, 4, 373-383. DOI:10.2110/palo.2005.p05-096r
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
Bergström, S. M., Löfgren, A., Maletz, J. 2004. The GSSP of the Second (Upper) Stage of the Lower Ordovician Series: Diabasbrottet at Hunneberg, Province of Västergötland, Southwestern Sweden. Episodes 27, 4, 265-272.
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.
Beckly, A. J., Maletz, J. 1991. The Ordovician graptolites Azygograptus and Jishougraptus in Scandinavia and Britain. Palaeontology 34, 4, 887-925.
Lindholm, K. 1991. Ordovician graptolites from the Early Hunneberg of southern Scandinavia. Palaeontology 34, 2, 283-327.
Erdtmann, B.-D., Maletz, J., Gutierrez Marco, J. C. 1987. The new Early Ordovician (Hunneberg Stage) graptolite genus Paradelograptus (Kinnegraptidae), its phylogeny and biostratigraphy. Paläontologische Zeitschrift 61, 1/2, 109-131. DOI:10.1007/BF02985945
Ulst, R., Gailite, L., Yakovleva, V. 1982. Ordovik Latvii. pp. 1-294. Zinatne.
Kaljo, D. 1974. On graptolite zones of Tremadoc and Arenig of Pribaltic and Moscow syneclises.Graptolites of the USSR , pp. 31-36. Nauka.
Jaanusson, V. 1965. Two multiramous graptoloids from the Lower Didymograptus Shale of Scandinavia. GFF 86, 4, 413-432. DOI:10.1080/11035897.1965.9626393