Symmoriidae is an extinct family of cartilaginous fish belonging to the order Symmoriiformes.[1] Members of the family are known from the Devonian and Carboniferous periods.[2]
References
 | 
|---|
 | 
 | 
|---|
 | †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 |  |  | Scale taxa | 
- Altacollum
 
- Arauzia
 
- Canyonlepis?
 
- Cladolepis
 
- Frigorilepis?
 
- Funicristata
 
- Gualepis
 
- Hercynolepis
 
- Ivanelepis
 
- Jolepis
 
- Karksilepis
 
- Knerialepis
 
- Lugalepis
 
- Lunalepis
 
- Modicucollum
 
- Nobilesquama
 
- Nogueralepis
 
- Nostolepis
 
- Nostovicina
 
- Ohiolepis
 
- Seretolepis
 
- Serpensiugum
 
- Tuvalepis
 
- Verrucasquama
 
- Wellingtonella?
  
  | 
|---|
 
  | 
|---|
 "Conventionally defined chondrichthyans" |  | 
|---|
 
  |  
  | 
"Conventionally defined chondrichthyans"  | 
|---|
  |  |  
  | 
 | 
 | 
 
Taxon identifiers  | 
|---|
| Symmoriidae |  | 
|---|