Echinodermata

Hemicosmitidae Jaekel, 1918

Selection of related publications
Bockelie, J. F. 1981. A re-evaluation of the Ordovician cystoid Stichocystis Jaekel and the taxonomic implications. GFF 103, 1, 51-59. DOI:10.1080/11035898109455204
Bockelie, J. F. 1979. Taxonomy, functional morphology and palaeoecology of the Ordovician cystoid family Hemicosmitidae. Palaeontology 22, 2, 363-406.
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I.
Regnéll, G. 1945. Non-Crinoid Pelmatozoa from the Paleozoic of Sweden. A taxonomic study. Meddelanden från Lunds Geologisk-Mineralogiska Institution 108, 1-255.
Bekker, H. 1925. Lühike ülevaade Eesti geoloogiast. (Eozoiline ja paleozoiline ladekond). Eesti. Maa, rahvas, kultuur, pp. 31-61.
Jaekel, O. 1918. Phylogenie und System der Pelmatozoen. Paläontologische Zeitschrift 3, 1, 1-128. DOI:10.1007/BF03190413
Jaekel, O. 1899. Stammesgesihichte der Pelmatozoen. Erster Band. Thecoidea und Cystoidea.