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Crinoidea (Crinoids)

      Crinoids are marine animals that make up the class Crinoidea of the echinoderms (phylum Echinodermata). Crinoidea comes from the Greek word krinon, "a lily", and eidos, "form". They live both in shallow water and in depths as great as 6,000 meters. Sea lilies refer to the crinoids which, in their adult form, are attached to the sea bottom by a stalk. Feather stars or comatulids refer to the unstalked forms. Crinoids are characterized by a mouth on the top surface that is surrounded by feeding arms. They have a U-shaped gut, and their anus is located next to the mouth. Although the basic echinoderm pattern of fivefold symmetry can be recognized, most crinoids have many more than five arms. Crinoids usually have a stem used to attach themselves to a substrate, but many live attached only as juveniles and become free-swimming as adults. There are only a few hundred known modern forms, but crinoids were much more numerous both in species and numbers in the past. Some thick limestone beds dating to the mid- to late-Paleozoic are almost entirely made up of disarticulated crinoid fragments.

Source: http://en.wikipedia.org/wiki/Crinoidea
lilijice
Img. 81:
Eohalysiocrinus latus Prokop, 1970Prokop (1970), Pl. XI. , fig. 1-3 RP50
Eohalysiocrinus latus Prokop, 1970Prokop (1970), Pl. X, fig. 1 - 3 RP48
Eohalysiocrinus latus Prokop, 1970 RP149
Eohalysiocrinus latus Prokop, 1970Prokop (1970), Pl. X, fig. 4 - 5 RP49
Eohalysiocrinus latus Prokop, 1970Prokop (1970), Pl. IX, fig. 3-6 RP30
Eohalysiocrinus reticulatus Prokop, 1970Prokop (1970), Pl. XII, fig. 1-3 RP34
Eohalysiocrinus reticulatus Prokop, 1970 RP138
Eohalysiocrinus reticulatus Prokop, 1970Prokop (1970), Pl. XII, fig. 4-6 RP35
Eohalysiocrinus JK8020
Eohalysiocrinus tuberosus Prokop, 1970 RP137
Eohalysiocrinus tuberosus Prokop, 1970 RP136
Eohalysiocrinus tuberosus Prokop, 1970 RP135
Eohalysiocrinus tuberosus Prokop, 1970Prokop (1970), Pl. XI, fig. 7-9 RP33
Eohalysiocrinus tuberosus Prokop, 1970Prokop (1970), Pl. XI, fig. 4-6 RP32
Eucalyptocrinites p3340
Eucalyptocrinites p2340
Eucalyptocrinus JH306
Eucalyptocrinus JH305
EuraxUreš et al. (1999), fig. 1C HL53
Fleckenbergocrinus moravicus Ureš - Le Menn - Hladil, 1999Ureš et al. (1999), Pl. 1, fig. 17 HL29
Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]