Cornuta
Extinct order of marine invertebrates
This article is about the prehistoric echinoderm taxon. For the prehistoric fish taxon, see
Cornuata .
Cornuta is an extinct order of echinoderms . Along with the mitrates , they form the Stylophora .
Their first (probable) representative is Ponticulocarpus from the Spence Shale (mid Cambrian); Ordovician examples also exist.
Taxa
As of 2002, the following taxa were recognized as being included in the order Cornuta:
Acuticarpus Sumrall, Sprinkle & Guensburg, 1997
Amygdalotheca Ubaghs, 1969
Ampelocarpus Lefebvre & Vizcaïno, 1999
Arauricystis Lefebvre & Vizcaïno, 1999
Archaeocothurnus Sumrall, Sprinkle & Guensburg, 1997
Babinocystis Rozhnov, 1990
Beryllia Cripps & Daley, 1994
Bohemiaecystis Caster, 1967
Ceratocystis Jaekel, 1901
Chauvelicystis Ubaghs, 1969
Cothurnocystis Bather, 1913
Domfrontia Cripps & Daley, 1994
Drepanocarpos Smith & Jell, 1999
Flabellicystis Martí Mus, 2002
Galliaecystis Ubaghs, 1969
Hanusia Cripps, 1989
Juliaecarpus Ruta, 1999
Lobocarpus Ubaghs, 1998
Lyricocarpus Ubaghs, 1994
Milonicystis Chauvel, 1986
Nanocarpus Ubaghs, 1991
Nevadaecystis Ubaghs, 1967
Phyllocystis Thoral, 1935
Ponticulocarpus Sumrall & Sprinkle, 1999
Prochauvelicystis Daley, 1992
Procothurnocystis Woods & Jefferies, 1992
Progalliacystis Cripps, 1989
Prokopicystis Cripps, 1989
Proscotiaecystis Ubaghs, 1994
Protocystites Hicks, 1872
Reticulocarpos Jefferies & Prokop, 1972
Scotiaecystis Caster & Ubaghs, 1967
Thoralicystis Chauvel, 1971
Trigonocarpus Ubaghs, 1994
References
Mus, Monica Martí (April 2002). "The Ordovician cornute Flabellicystis rushtoni n. gen. n. sp. (Stylophora, Echinodermata) and its phylogenetic position within the group Cornuta". Paläontologische Zeitschrift . 76 (1): 99– 116. doi :10.1007/BF02988189 . hdl :10662/20136 . S2CID 129282077 .