Cladida
   HOME

TheInfoList



OR:

Cladida is a major subgroup of
crinoid Crinoids are marine animals that make up the class Crinoidea. Crinoids that are attached to the sea bottom by a stalk in their adult form are commonly called sea lilies, while the unstalked forms are called feather stars or comatulids, which are ...
s with a complicated taxonomic history. Cladida was originally applied to a wide assortment of extinct crinoids with a dicyclcic calyx. Under this original definition, cladids would represent a paraphyletic order ancestral to several other major crinoid groups, particularly the living Articulata. More recently, Cladida has been redefined as a monophyletic parvclass of pentacrinoids which encompasses articulates and the extinct Flexibilia (flexibles). Cladids also include various minor taxa such as the hybocrinids and " cyathocrines". As flexibles were not originally considered cladids, the new subgroup Eucladida has been erected for cladids which are more derived than flexibles. Cladida is the sister group to Disparida, another large group of extinct crinoids.


Taxonomy

* Parvclass Cladida ** Superorder † Porocrinoidea *** Order † Hybocrinida *** Order † Porocrinida ** Superorder † Flexibilia *** Order † Sagenocrinida *** Order † Taxocrinida ** Magnorder Eucladida *** † Ampelocrinida (''
incertae sedis ' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertain ...
'') *** Superorder † Cyathoformes **** †" Cyathocrinida" (''
incertae sedis ' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertain ...
'') **** †" Dendrocrinida" (''
incertae sedis ' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertain ...
'') **** †" Poteriocrinida" (''
incertae sedis ' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertain ...
'') *** Superorder Articulata **** Order † Encrinida **** Order † Holocrinida **** Order † Millericrinida **** Order † Roveacrinida **** Order † Uintacrinida **** Order
Comatulida Comatulida is an order of crinoids. Members of this order are known as feather stars and mostly do not have a stalk as adults. The oral surface with the mouth is facing upwards and is surrounded by five, often divided rays with feathery pinnules. ...
**** Order
Cyrtocrinida Cyrtocrinida is an order of sea lilies which contains two suborders and three families. Characteristics Members of this order have stems consisting of a single skeletal unit or a very small number of units. There are no cirri, and the expanded ...
**** Order
Hyocrinida Hyocrinida is an Order (biology), order of sea lilies which contains a single extant family, Hyocrinidae. Characteristics Members of this order have long slender stems consisting of a large number of identical columnar units. There are no cirri, ...
**** Order
Isocrinida Isocrinida is an order of sea lilies which contains four extant families. Characteristics Members of this order are characterised by having a "heteromorphic" stalk; the stalk consists of a series of nodes with cirri, interspersed by several node ...


List of genera

* '' Aaglacrinus'' * '' Aatocrinus'' * '' Abrachiocrinus'' * '' Acariaiocrinus'' * '' Achradocrinus'' * '' Acylocrinus'' * '' Adinocrinus'' * '' Aenigmocrinus'' * '' Agassizocrinacea'' * '' Agassizocrinoidea'' * '' Agassizocrinus'' * '' Aithriocrinus'' * '' Alcimocrinus'' * '' Allosycocrinus'' * '' Alsopocrinus'' * '' Ampelocrinida'' * '' Ampheristocrinus'' * '' Amphipsalidocrinus'' * '' Anarchocrinus'' * '' Anartiocrinus'' * '' Ancyrocrinus'' * '' Anemetocrinus'' * '' Antihomocrinus'' * '' Apektocrinidae'' * '' Arachnocrinus'' * '' Araeocrinus'' * '' Armenocrinus'' * '' Ascetocrinus'' * '' Asymmetrocrinus'' * '' Atelestocrinus'' * '' Atractocrinus'' * '' Atrapocrinus'' * '' Atremacrinus'' * '' Aulocrinus'' * '' Aulodesocrinus'' * '' Bactrocrinites'' * '' Basleocrinus'' * '' Bathericrinus'' * '' Belanskicrinus'' * '' Benthocrinus'' * '' Bicidiocrinus'' * '' Bolbocrinus'' * '' Bollandocrinus'' * '' Botryocrinidae'' * '' Brabeocrinus'' * '' Briseocrinus'' * '' Bronaughocrinus'' * '' Brychiocrinus'' * '' Bursacrinus'' * '' Cadocrinus'' * '' Caelocrinus'' * '' Carcinocrinus'' * '' Carlopsocrinus'' * '' Cathetocrinus'' * '' Ceratocrinus'' * '' Cercidocrinus'' * '' Cestocrinus'' * '' Clathrocrinus'' * '' Clistocrinus'' * '' Codiacrinus'' * '' Coenocystis'' * '' Contignatindocrinus'' * '' Corematocrinus'' * '' Corynecrinus'' * '' Corythocrinus'' * '' Cradeocrinus'' * '' Cranocrinus'' * '' Cricocrinus'' * '' Cromyocrinacea'' * '' Cromyocrinus'' * '' Crotalocrinites'' * '' Cryphiocrinus'' * '' Culmicrinus'' * '' Cyathocrinacea'' * '' Cydrocrinus'' * '' Cyliocrinus'' * '' Dasciocrinus'' * '' Denariocrinus'' * '' Dendrocrinina'' * '' Depaocrinus'' * '' Derbiocrinus'' * '' Dichostreblocrinus'' * '' Dictenocrinus'' * '' Dinotocrinus'' * '' Edapocrinus'' * '' Eifelocrinus'' * '' Eirmocrinus'' * '' Elicrinus'' * '' Enallocrinus'' * '' Eopilidiocrinus'' * '' Epipetschoracrinus'' * '' Eratocrinus'' * '' Ethelocrinus'' * '' Eucladida'' * '' Euerisocrinus'' * '' Eupachycrinus'' * '' Euspirocrinus'' * '' Exaetocrinus'' * '' Exochocrinus'' * '' Exoriocrinus'' * '' Exterocrinus'' * '' Fifeocrinus'' * '' Flexibilia'' * '' Follicrinus'' * '' Forthocrinus'' * '' Gastrocrinus'' * '' Goniocrinus'' * '' Gothocrinus'' * '' Hallocrinus'' * '' Harmostocrinus'' * '' Harrellicrinus'' * '' Hemiindocrinus'' * '' Hemimollocrinus'' * '' Hemistreptacron'' * '' Holcocrinus'' * '' Hosieocrinus'' * '' Hydreionocrinus'' * '' Hydriocrinus'' * '' Hydroporocrinus'' * '' Hylodecrinus'' * '' Idaeumocrinus'' * '' Idosocrinus'' * '' Imitatocrinus'' * '' Indocrinus'' * '' Intermediacrinus'' * '' Jahnocrinus'' * '' Kalpidocrinus'' * '' Kanabinocrinus'' * '' Kansacrinus'' * '' Kooptoonocrinus'' * '' Kopficrinus'' * '' Kophinocrinus'' * '' Laccocrinus'' * '' Lageniocrinus'' * '' Lanecrinus'' * '' Lasiocrinus'' * '' Laudonocrinus'' * '' Lebetocrinus'' * '' Lecythocrinus'' * '' Lekocrinus'' * '' Linobrachiocrinus'' * '' Linocrinus'' * '' Lobalocrinus'' * '' Lopadiocrinus'' * '' Lophocrinacea'' * '' Lophocrinus'' * '' Malaiocrinus'' * '' Manicrinus'' * '' Mantikosocrinus'' * '' Maragnicrinus'' * '' Marathonocrinus'' * '' Mathericrinus'' * '' Menniscocrinus'' * '' Metaffinocrinus'' * '' Metasycocrinus'' * '' Miatschkovocrinus'' * '' Mictocrinus'' * '' Moapocrinus'' * '' Mollocrinus'' * '' Monobrachiocrinus'' * '' Mooreocrinus'' * '' Moscovicrinus'' * '' Myrtillocrinus'' * '' Nacocrinus'' * '' Nactocrinus'' * '' Nanocrinus'' * '' Nassoviocrinus'' * '' Neocatacrinus'' * '' Neolageniocrinus'' * '' Nereocrinus'' * '' Notiocrinus'' * '' Nuxocrinus'' * '' Oligobrachyocrinus'' * '' Ophiurocrinus'' * '' Oxynocrinus'' * '' Pagecrinus'' * '' Paianocrinus'' * '' Parabotryocrinus'' * '' Paracosmetocrinus'' * '' Paracydonocrinus'' * '' Paradelocrinus'' * '' Paragraphiocrinus'' * '' Parapernerocrinus'' * '' Paraplasocrinus'' * '' Parascytalocrinus'' * '' Parastachyocrinus'' * '' Parastephanocrinus'' * '' Parasycocrinus'' * '' Paratimorocidaris'' * '' Parazeacrinites'' * '' Parindocrinus'' * '' Parisangulocrinus'' * '' Parisocrinus'' * '' Pegocrinus'' * '' Pelecocrinus'' * '' Pellecrinus'' * '' Pentaramicrinus'' * '' Pentececrinus'' * '' Permiocrinus'' * '' Pernerocrinus'' * '' Petalambicrinus'' * '' Petschoracrinus'' * '' Phanocrinus'' * '' Pilidiocrinus'' * '' Pirasocrinus'' * '' Platyfundocrinus'' * '' Polygonocrinus'' * '' Porocrinoidea'' * '' Poteriocrinitina'' * '' Premanicrinus'' * '' Prininocrinus'' * '' Proampelocrinus'' * '' Probletocrinus'' * '' Prochoidiocrinus'' * '' Proctothylacocrinus'' * '' Proindocrinus'' * '' Prolobocrinus'' * '' Psilocrinus'' * '' Pskovicrinus'' * '' Pulaskicrinus'' * '' Pumilindocrinus'' * '' Pyrenocrinus'' * '' Ramulocrinus'' * '' Retusocrinus'' * '' Rhabdocrinus'' * '' Rhadinocrinus'' * '' Rhenocrinus'' * '' Rhopalocrinus'' * '' Rhopocrinus'' * '' Rimosidocrinus'' * '' Roemerocrinus'' * '' Saccosompsis'' * '' Sardinocrinus'' * '' Sarocrinus'' * '' Scammatocrinus'' * '' Schedexocrinus'' * '' Schistocrinus'' * '' Schultzicrinus'' * '' Scoliocrinus'' * '' Scotiacrinus'' * '' Sellardsicrinus'' * '' Separocrinus'' * '' Sigambrocrinus'' * '' Simocrinus'' * '' Sphaerocrinus'' * '' Springericrinus'' * '' Stachyocrinus'' * '' Staphylocrinus'' * '' Stinocrinus'' * '' Streblocrinus'' * '' Streptocrinus'' * '' Sublobalocrinus'' * '' Sycocrinites'' * '' Syndetocrinus'' * '' Tarachiocrinus'' * '' Telikosocrinus'' * '' Tenagocrinus'' * '' Terpnocrinus'' * '' Tetrabrachiocrinus'' * '' Tetrapleurocrinus'' * '' Texacrinacea'' * '' Thalamocrinus'' * '' Thenarocrinus'' * '' Thetidicrinus'' * '' Tholocrinus'' * '' Thyridocrinus'' * '' Timorechinus'' * '' Treocrinus'' * '' Trimerocrinus'' * '' Tyrieocrinus'' * '' Ulrichicrinus'' * '' Ureocrinus'' * '' Vasocrinus'' * '' Wetherbyocrinus'' * '' Woodocrinus'' * '' Worthenocrinus'' * '' Yakovlevicrinus'' * '' Zeacrinitacea'' * '' Zeacrinites'' * '' Zeusocrinus'' * '' Zostocrinus'' * '' Zygotocrinus''


References


External links


Cladida
in the
Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals, plants, and microorganisms. History The Paleobiology Database (PBDB) originated in the NCEAS-funded Phanerozoic Marine Pale ...
Early Ordovician first appearances Crinoidea {{paleo-crinoidea-stub