Genus
Gymnograptus Bulman, 1953
Aiheeseen liittyvät julkaisut
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
Goldman, D., Nõlvak, J., Maletz, J. 2015. Middle to Late Ordovician graptolite and chitinozoan biostratigraphy of the Kandava-25 drill core in western Latvia. GFF 137, 3, 197-211. DOI:10.1080/11035897.2015.1021375
Männil, Ralf 1976. Distribution of graptoloids in the Ordovician carbonate rocks of the East Baltic area. Graptolites and Stratigraphy, pp. 105-118. Academy of Sciences of Estonian SSR. Institut of Geology.
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I. pp. 1-346. Valgus.
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.
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.
List of species
1. Gymnograptus ejuncidus (Berry, 1964) | Darriwilian
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Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Graptoloidea |
| Suborder | Axonophora |
| Infraorder | Neograptina |
| Family | Dimorphograptidae |
| Normalograptidae | |
| Genus | Gymnograptus |
| Species | ejuncidus |
| linnarssoni | |
| Genus | Haddingograptus |
| Oelandograptus | |
| Proclimacograptus | |
| Prolasiograptus | |
| Reteograptus | |
| Undulograptus |