Family
Didymograptidae Mu, 1950
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
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., Steiner, M. 2015. Graptolites (Hemichordata, Pterobranchia) preservation and identification in the Cambrian Series 3. Palaeontology 58, 6, 1073–1107. DOI:10.1111/pala.12200
Maletz, J., Slovacek, M. 2013. The tubarium construction of Lower Ordovician (Dapingian) Baltograptus species (Graptolithina) from Dalarna, Sweden. Palaeontology 56, 5, 107–1120. DOI:10.1111/pala.12038
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
Suyarkova, A. A., Koren', T. N. 2009. Advances in the Ordovician graptolite biostratigraphy of the St Petersburg area, Russia. Estonian Journal of Earth Sciences 58, 1, 3-9. DOI:10.313176/earth.2009.1.01
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.
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
Tolmacheva, T., Egerquist, E., Meidla, T., Holmer, L. 2001. Spatial variations in faunal composition, Middle Ordovician, Volkhov Stage, East Baltic. GFF 123, 2, 65-72. DOI:10.1080/11035890101232065
Tolmacheva, T. J., Koren', T. N., Holmer, L. E., Popov, L. E., Raevskaya, E. 2001. The Hunneberg Stage (Ordovician) in the area east of St. Petersburg, north-western Russia. Paläontologische Zeitschrift 74, 4, 543-561. DOI:10.1007/BF02988161
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. 1996. The identity of Didymograptus (Expansograptus) suecicus (Tullberg) and related species (Graptoloidea, Dichograptidae). Paläontologische Zeitschrift 70, 1/2, 203-212. DOI:10.1007/BF02988278
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.
Kaljo, D. 1974. On graptolite zones of Tremadoc and Arenig of Pribaltic and Moscow syneclises. Graptolites of the USSR, pp. 31-36. Nauka.
Bergström, S. M. 1973. Correlation of the late Lasnamägian Stage (Middle Ordovician) with the graptolite succession. GFF 95, 1, 9-18. DOI:10.1080/11035897309455420
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I. pp. 1-346. Valgus.
Jaanusson, V. 1965. Two multiramous graptoloids from the Lower Didymograptus Shale of Scandinavia. GFF 86, 4, 413-432. DOI:10.1080/11035897.1965.9626393
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.
Jaanusson, V. 1960. Graptoloids from the Ontikan and Viruan (Ordov.) limestones of Estonia and Sweden. Bulletin of the Geological Institutions of the University of Uppsala 38, 289-366.
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.
List of species
1. Aulograptus climacograptoides (Bulman, 1931) | Darriwilian
2. Aulograptus cucullus (Bulman, 1932) | Kunda Stage
3. Baltograptus extremus Maletz et Slovacek, 2013 | Lower Ordovician
5. Baltograptus geometricus (Törnquist, 1901) | Lower Ordovician
6. Baltograptus jacksoni Rushton, 2011 | Lower Ordovician
7. Baltograptus kurcki (Törnquist, 1901) | Floian
9. Baltograptus minutus (Törnquist, 1879) | Floian
10. Baltograptus novus Maletz, 2023 | Tremadocian
12. Cymatograptus balticus (Tullberg, 1880) | Lower Ordovician
13. Cymatograptus demissus (Törnquist, 1901) | Lower Ordovician
15. Cymatograptus protobalticus (Monsen, 1937) | Lower Ordovician
16. Cymatograptus rigoletto (Maletz, Rushton et Lindholm, 1991) | Lower Ordovician
17. Cymatograptus undulatus (Törnquist, 1901) | Lower Ordovician
18. Didymograptus acutus Ekström, 1937 | Aseri Stage
19. Didymograptus artus Elles et Wood, 1902 | Darriwilian
20. Didymograptus bifidus (Hall, 1865) | Ordovician
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Graptoloidea |
| Suborder | Dichograptina |
| Family | Dichograptidae |
| Didymograptidae | |
| Genus | Aulograptus |
| Baltograptus | |
| Cymatograptus | |
| Didymograptus | |
| Expansograptus | |
| Janograptus | |
| Jenkinsograptus | |
| Trigonograptus | |
| Family | Pterograptidae |
| Genus | Calamograptus |