| Basic info | Taxonomic history | Classification | Relationships |
| Morphology | Ecology and taphonomy | Map | Age range and collections |
Symmoriiformes
Taxonomy
Symmoriida was named by Zangerl (1981). It is not extant.
It was synonymized subjectively with Cladodontida by Lund (1986); it was corrected as Symmoriiformes by Maisey (2008) and Ginter et al. (2010).
It was assigned to Cladoselachii by Goto et al. (1988); to Elasmobranchii by Zangerl (1981), Williams (1985) and Williams (1998); to Chondrichthyes by Coates and Sequeira (2001), Sepkoski (2002) and Maisey (2008); and to Cladodontomorphi by Ginter et al. (2010).
It was synonymized subjectively with Cladodontida by Lund (1986); it was corrected as Symmoriiformes by Maisey (2008) and Ginter et al. (2010).
It was assigned to Cladoselachii by Goto et al. (1988); to Elasmobranchii by Zangerl (1981), Williams (1985) and Williams (1998); to Chondrichthyes by Coates and Sequeira (2001), Sepkoski (2002) and Maisey (2008); and to Cladodontomorphi by Ginter et al. (2010).
Synonymy list
| Year | Name and author |
|---|---|
| 1981 | Symmoriida Zangerl p. 68 |
| 1985 | Symmoriida Williams p. 88 |
| 1988 | Symmoriida Goto et al. p. 292 |
| 1998 | Symmoriida Williams p. 251 |
| 2001 | Symmoriida Coates and Sequeira |
| 2002 | Symmoriida Sepkoski, Jr. |
| 2008 | Symmoriiformes Maisey p. 186 |
| 2010 | Symmoriiformes Ginter et al. p. 59 |
Is something missing? Join the Paleobiology Database and enter the data