Fossil group: Graptolithina
Genus Orthograptus Lapworth, 1873

Selection of related publications

  • Goldman et al., 2015. Middle to Late Ordovician graptolite and chitinozoan biostratigraphy of the Kandava-25 drill core in western Latvia [DOI]
  • Nõlvak & Goldman, 2007. Biostratigraphy and taxonomy of three-dimensionally preserved nemagraptids from the Middle and Upper Ordovician of Baltoscandia [DOI]
  • Pålsson, 2002. Upper Ordovician graptolites and biostratigraphy of the Röstånga 1 core, Scania, S. Sweden
  • Pålsson, 2001. Graptolites from the Upper Ordovician Dicranograptus clingani Zone at Järrestad, Scania, southern Sweden [DOI]
  • Ulst et al., 1982. Ordovician of Latvia
  • Paškevičius, 1979. Biostratigraphy and Graptolites of the Lithuanian Silurian
  • Tzaj, 1976. Middle Ordovician Graptolites of Kazakstan
  • Männil, Ralf, 1976. Distribution of graptoloids in the Ordovician carbonate rocks of the East Baltic area
  • Gailite et al., 1967. Stratigraphy, fauna and conditions of formation of the Silurian rocks of the Central Baltic
  • Strachan, 1959. Graptolites from the Ludibundus Beds (Middle Ordovician) of Tvären, Sweden

Taxon occurrences on map


Identifications of taxon in collection specimens

Taxon images

Orthograptus quadrimucronatus (Hall, 1865), GIT 709-2
GIT 709-2 Orthograptus quadrimucronatus (Hall, 1865)
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Orthograptus quadrimucronatus (Hall, 1865), GIT 709-2
GIT 709-2 Orthograptus quadrimucronatus (Hall, 1865)
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Orthograptus quadrimucronatus (Hall, 1865), GIT 709-2
GIT 709-2 Orthograptus quadrimucronatus (Hall, 1865)
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Orthograptus quadrimucronatus (Hall, 1865), GIT 709-2
GIT 709-2 Orthograptus quadrimucronatus (Hall, 1865)
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None, GIT 717-20
GIT 717-20 None
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None, GIT 717-17
GIT 717-17 None
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None, GIT 717-21
GIT 717-21 None
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None, GIT 717-19
GIT 717-19 None
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None, GIT 717-18
GIT 717-18 None
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None, GIT 717-16
GIT 717-16 None
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