Odkazy
Hemichordata - polostrunatci
Fu X, Guo W, Ding Z, Zhou W, Wei F (2024): A new species of the genus Glossobalanus (Hemichordata, Enteropneusta, Ptychoderidae) from China
ZooKeys 1202: 343–358 https://zookeys.pensoft.net/article/1118...
Norio Miyamoto, Teruaki Nishikawa, Hiroshi Namikawa (2020): Cephalodiscus planitectus sp. nov. (Hemichordata: Pterobranchia) from Sagami Bay, Japan
Zoological Science, 37(1), 1-12 https://bioone.org/journals/Zoological-S...
Kraft P. (1990): Dendroid graptolites of the Tetragraptus abbreviatus biozone (Klabava formation, Barrandian Ordovician)
Věstník Ústředního ústavu geologického 65, 4, 249-252 Four new species and a ribosomal phylogeny of Rhabdopleura (Hemichordata: Graptolithina) from New Zealand, with a review and key to all described extant taxa
https://www.mapress.com/zt/article/view/...
Maltez J., Steiner M. (2015): Graptolite (Hemichordata, Pterobranchia) preservation and identification in the Cambrian Series 3
Palaeontology, 2015, pp. 1–35 Štorch, P. & Kraft, P. (2009): Graptolite assemblages and stratigraphy of the lower Silurian Mrákotín Formation, Hlinsko Zone, NE interior of the Bohemian Massif (Czech Republic)
Bulletin of Geosciences 84(1), 51–74 Štorch P. (2023): Graptolite biostratigraphy and biodiversity dynamics in the Silurian System of the Prague Synform (Barrandian area, Czech Republic)
Bulletin of Geosciences 98(1), 1–78 Kraft P. (1987): Graptolite fauna of the Klabava Formation (Ordovician, Arenig) from Těškov near Rokycany
Časopis pro mineralogii a geologii, 32 (1): 59-72 Štorch P. (2015): Graptolites from the Rhuddanian–Aeronian boundary interval (Silurian), Prague Synform, Czech Republic
Bulletin of Geosciences 90(4), 841–891 Kraft P., Štorch P., Mitchell C. E. (2015): Graptolites of the Králův Dvůr Formation (mid Katian to earliest Hirnantian, Czech Republic)
Bulletin of Geosciences 90(1), 195–225 Maltez J., Steiner M., Fatka O. (2005): Middle Cambrian pterobranchs and the Question: What is a graptolite?
Lethaia , Vol. 38, pp. 73–85 Kraft P., Kraft J. (2003): Middle Ordovician graptolite fauna from Praha – Červený vrch (Prague Basin, Czech Republic)
Bulletin of Geosciences, Vol. 78, No. 2, 129–139 Kraft P., Kraft J. (2004): New Dendroid Graptolites from the Klabava Fromation of the Bohemian Lower Ordovician
Journal of Czech Geological Society, 49/3-4 Kraft J., Kraft P., Seidl R. (1993): New dendroid graptolites from the Lower Ordovician of Bohemia
Journal of the Czech Geological Society 38/1-2, 89-94 Maletz J. (2014): The classification of the Pterobranchia (Cephalodiscida and Graptolithina)
Bulletin of Geosciences, volume 89, 3 
Bouček (1957): The dendroid graptolites of the Silurian of Bohemia
Rozpravy Ústředního ústavu geologického 23, 1-294 Štorch P., Loydell D. K. (1996): The Hirnantian Graptolites Normalograptus persculptus and Glyptograptus bohemicus: Stratigraphical consequences of their synonymy
Paleontology, vol. 39, part 4, 869-881 Cameron C.B., Ostiguy A. (2013): Three new species of Glossobalanus (Hemichordata: Enteropneusta: Ptychoderidae) from western North America
Zootaxa 3630 p.143-154 https://mapress.com/zt/article/view/zoot...
Kraft J. (1998): Two new dendroid graptolites from the Klabava formation
Journal of the Czech Geological Society 43/4, 281-285