Plagiochasma (echinoderm)
| Plagiochasma | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Subphylum: | Echinozoa |
| Class: | Echinoidea |
| Infraclass: | Irregularia |
| Family: | Pygaulidae |
| Genus: | Plagiochasma Pomel, 1883 |
| Species | |
|
See text | |
Plagiochasma is an extinct echinoderm genus in the family Pygaulidae.[1]
Species includes:
- Plagiochasma olfersii (L. Agassiz, 1836); Hauterivian, Early Cretaceous of France and Switzerland
- Plagiochasma faringdonense (Wright, 1875); Lower Greensand, Upper Aptian, Early Cretaceous of UK
- Plagiochasma cruciferum (Morton, 1830); Paleocene of Denmark, Belgium, The Netherlands, Trinidad and the United States.
- Plagiochasma texanum Smith & Rader, 2009; Lower Albian, Texas, USA