Restoration of T. sesselensis
Triodus is an extinct genus of xenacanthiform cartilaginous fish that lived from the Carboniferous to the Permian . In 2017, a new species Triodus richterae was described from the Rio do Rasto Formation of Brazil .[ 1]
References
^ Victor E. Pauliv; Agustín G. Martinelli; Heitor Francischini; Paula Dentzien-Dias; Marina B. Soares; Cesar L. Schultz; Ana M. Ribeiro (2017). "The first Western Gondwanan species of Triodus Jordan 1849: A new Xenacanthiformes (Chondrichthyes) from the late Paleozoic of Southern Brazil". Journal of South American Earth Sciences . 80 : 482– 493. Bibcode :2017JSAES..80..482P . doi :10.1016/j.jsames.2017.09.007 .
Further reading
The Rise of Fishes: 500 Million Years of Evolution by John A. Long
† Altholepidiformes† Elegestolepidida
† Tchunacanthidae
Fecundosquama
Lenacanthus
Tchunacanthus
† Ischnacanthiformes
Acanthospina
Campylodus
Granulacanthus
Onchus
Serradentus
Acritolepidae Ischnacanthidae
Arcticacanthus
Arenaceacanthus
Atopacanthus
Bracteatacanthus
Cacheacanthus
Erymnacanthus
Euryacanthus
Gomphonchus
Grenfellacanthus
Ischnacanthus
Marsdenius ?
Persacanthus
Plectrodus
Rockycampacanthus
Rohonilepis
Taemasacanthus
Tricuspicanthus
Xylacanthus
Podoliacanthidae Poracanthodidae
Gomphonchoporus
Machaeraporus
Obruchevacanthus ?
Poracanthodes
Radioporacanthodes
Taimyrolepis
Trundlelepis
Zemlyacanthus
† Diplacanthiformes
† Acanthodiformes
† "Climatiiformes " and related taxa
Brochoadmones
Dobunnacanthus
Kathemacanthus
Lupopsyroides
Lupopsyrus
Obtusacanthus
"Climatiidae"
Brachyacanthus
Canadalepis
Cheiracanthoides
Climatius
Eifellepis
Endemolepis
Erriwacanthus
Hanilepis
Iranolepis
Laliacanthus
Lijiangichthys
Minioracanthus
Nodocosta ?
Nostolepoides
Parexus
Ptomacanthus
Sevyacanthus
Tareyacanthus
Vernicomacanthus
Watsonacanthus
Wetteldorfia
Gyracanthidae Vesperaliidae
Acanthacanthus
Vesperalia
† Lamellin-forming taxa
Sinacanthidae
Eosinacanthus
Hunanacanthus
Neosinacanthus
Sinacanthus
Tarimacanthus
Mongolepidida
Mongolepididae
Mongolepis
Rongolepis
Sodolepis
Taklamakanolepis
Teslepis
Shiqianolepidae
Chenolepis
Shiqianolepis
Tielikewatielepis
Xiaohaizilepis
Xinjiangichthys
† Incertae sedis "Conventionally defined chondrichthyans"
"Conventionally defined chondrichthyans"
Altacollum
Arauzia
Canyonlepis ?
Cladolepis
Frigorilepis ?
Funicristata
Gualepis
Hercynolepis
Iberolepis
Ivanelepis
Jolepis
Karksilepis
Knerialepis
Lugalepis
Lunalepis
Modicucollum
Nobilesquama
Nogueralepis
Nostolepis
Nostovicina
Ohiolepis
Seretolepis
Serpensiugum
Tuvalepis
Verrucasquama
Wellingtonella ?