The Icla Formation is an early Devonian formation from Bolivia. It preserves a moderately diverse fauna of trilobites, brachiopods, crinoids and a few species of jawed fish.
Paleobiota
PaleobiotaGenusSpeciesHigher taxonNotesImagesRamirosuareziaR. bolivianaGnathostomataResembles a mix of gnathostome groups, may be the same as ZamponiopteronPucapampellaP. rodrigaeStem-ChondrichthyesAlso known from the Belèn Formation, one of the most basal known cartilaginous fishMeperocrinusM. angelinaEmperocrinidae (Camerata)Has unusual wing-shaped extensions of its calyxLutocrinusL. boliviaensisRhodocrinitidae (Diplobathrida)GriphocrinusG. pirovanoiDimerocrinitidae (Diplobathrida)LegrandellaL. lombardiiProsomapodaA "synziphosurine" chelicerateMaurotarionM. dereimsi, M. racheboufiAulacopleuridae (Proetida)BainellaB. (Belenops) insolitaCalmoniidaeDeltacephalaspisD. (Prestalia) tumidaCalmoniidaeSchizostylusS. (Schizostylus) ?brevicaudatusCalmoniidaeProbolopsP. glabellirostrisCalmoniidaeKozlowskiaspisK. (Kozlowskiapis) supernaCalmoniidaeAcastoides??A. verneuiliCalmoniidaePhacopinaP. padillaCalmoniidaePlesiomalvinellaP. pujravii, P. bouleiCalmoniidaeMalvinellaM. haugiCalmoniidaeVogesinaV. devonica, V. lacunaferaCalmoniidaeFormerly classed in the genus PhacopinaNuculitesN. beneckei, N. oblongatusMalletiidae PalaeoneiloP. rhysa?MalletiidaePhestiaP. inornata?NuculanidaeBolithecaB. steinmanniOrthothecidaBolithesB. crasquinaeHyolithidaProtoleptostrophiaP. concinnaStropheodontidae (Strophomenoidea)SchuchertellaS. sp?Schuchertellidae (Orthotetida)AustralostrophiaA. mesembrinaChonostrophiidae (Chonetidina)PleurochonetesP. anteloi, P. lauriataChonetidae (Chonetidina)P. anteloi was formerly placed in its own genus (Gamonetes) before being synonymisedNotiochonetesN. falklandicaChonetidae (Chonetidina)KentronetesK. iclaenseChonetidinaFormerly included in Quadrikentron, but split out into its own genusAntelocoeliaA. johnsoniLeptocoeliidae (Rhynchonellida)AustralocoeliaA. palmataLeptocoeliidae (Rhynchonellida)MeristelloidesM. rikowskiiMeristellidae (Athyridida)AustralospiriferA. hawkinsiDelthyrididae (Spiriferida)MetaplasiaM. pseudoumbonataAmbocoeliidae (Spiriferida)PlicoplasiaP. planoconvexaAmbocoeliidae (Spiriferida)ProboscidinaP. arceiCentronellidae (Terebratulida)MutationellaM. spMutationellidae (Terebratulida)PodolellaP. spMutationellidae (Terebratulida)DerbyinaD. smithi, D. jamesianaMutationellidae (Terebratulida)PleurothyrellaP. knodiMutationellidae (Terebratulida)ScaphiocoeliaS. bolivianaMutationellidae (Terebratulida)CryptonellaC. bainiCryptonellidae (Terebratulida)ConulariaC. quichua, C. albertensisConulariidaParaconulariaP. ulrichiana, P. africanaConulariida
References