Echinodermata
Subclass

Hybocrinea Rozhnov, 1985

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Selection of related publications
Semenov, N. K., Terentyev, S. S., Mirantsev, G. V., Rozhnov, S. V. 2021. A New Hybocrinid Genus (Echinodermata, Crinoidea) from the Middle Ordovician of Ladoga Glint on the Volkhov River.Paleontological Journal 55 , 1,54-63. DOI:10.1134/S0031030121010123
Rozhnov, S. V. 2007. New data on perittocrinids and hybocrinids (Crinoidea, Echinodermata) from the Middle Ordovician of the Baltic region.Annales de Paléontologie 93 , 4,261-276. DOI:10.1016/j.annpal.2007.09.004
Donovan, S. K. 1986. A new genus of Inadunate crinoid with unique stem morphology from the Ashgill of Sweden.Palaeontology 29 , 2,235-242.
Donovan, S. K. 1984. Ristnacrinus and the earliest myelodactylid from the Ashgillian Boda Limestone of Sweden.GFF 106 , 4,347-356. DOI:10.1080/11035898509454663
Arendt, Yu. A. 1976. Ordovikskie iglokožie gemistreptokrinoidei.Bulletin of the Moscow Society of Naturalists. Geological series 51 , 2,63-84.
Regnéll, G. 1973. Tidiga tagghudingar.Fauna och flora 4 , 161-165.
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I.
Hecker, R. F. 1964. Klass Cystoidea. Cistoidei.Osnovy paleontologii. Iglokožie, gemihordovye, pogonofory i ŝetinkočelûstnye , pp. 30-45.
Männil, Ralf 1959. New Representatives of Hoplocrinus from the Middle Ordovician of Estonia.Tartu Riikliku Ülikooli Toimetised 75 , I,82-97. Töid Eesti NSV geoloogia alalt, I , pp. 82-97.
Männil, Ralf 1958. Zur Stratigraphie der oberordovizischen Nabala-Stufe (FIa) in Estland.ENSV TA Geoloogia Instituudi uurimused II , 3-17. Eesti NSV Teaduste Akadeemia Geoloogia Instituudi Uurimused II , pp. 3-17.
Regnéll, G. 1948. Swedish Hybocrinida (Crinoidea Inadunata Disparata; Ordovician-Lower Silurian).Arkiv För Zoologi 40 A , 9,1-27.
Regnéll, G. 1948. An Outline of the Succession and Migration of Non-Crinoid Pelmatozoan Faunas in the Lower Paleozoic of Scandinavia.Arkiv för kemi, mineralogi och geologi 26 A , 13,1-55.
Öpik, A. 1935. Hoplocrinus - eine stiellose Seelilie aus dem Ordovizium Estlands.Tartu Ülikooli Geoloogia Instituudi Toimetused 43 , 1-15.
Öpik, A. 1935. Amphipora ramosa (Phill.) in the Marine Devonian of Estonia.Tartu Ülikooli Geoloogia Instituudi Toimetused 41 , 1-7.
Öpik, A. 1925. Beiträge zur Kenntnis der Kukruse-(C2-) Stufe in Eesti. I.Acta et Commentationes Universitatis Tartuensis VIII , 5,1-18.
Grewingk, C. 1868. Ueber Hoplocrinus dipentas und Baerocrinus Ungerni.Archiv für die Naturkunde Liv-, Ehst- und Kurlands 4 , 1,100-114. Archiv für die Naturkunde Liv-, Ehst- und Kurlands. Erster Serie, Bd. IV , pp. 100-114.
Eichwald, E. 1866. Die Rhytina borealis und der Homocrinus dipentas in der Lethea Rossica.Bulletin of the Moscow Society of Naturalists. Geological series 39 , 1,138-162.
Eichwald, E. 1861. Paleontologiâ Rossii. Drevnij period. II. Fauna grauvakkovoj, gornoizvestkovoj i medistoslancevatoj formacij Rossii.
List of species
1. Baerocrinus parvus Jaekel, 1900 | Lower Ordovician
2. Baerocrinus ungerni Volborth, 1864 | Uhaku StageKukruse Stage
6. Hoplocrinus dipentas (Leuchtenberg, 1843) | Aseri StageLasnamägi Stage
7. Hoplocrinus estonus Öpik, 1935 | Kukruse StageIdavere Substage
9. Hoplocrinus heckeri Männil, 1959 | Uhaku StageIdavere Substage
10. Hoplocrinus laevis Männil, 1959 | Idavere SubstageKeila Stage
12. Hoplocrinus pseudodicyclicus Öpik, 1935 | Kukruse StageIdavere Substage