Tomiostrobus
| Tomiostrobus Temporal range: | |
|---|---|
| Fertile plant of Tomiostrobus australis from Early Triassic Gosford Formation near Terrigal, NSW, Australia. | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Lycophytes |
| Class: | Lycopodiopsida |
| Order: | Isoetales |
| Family: | Isoetaceae |
| Genus: | †Tomiostrobus Retallack |
| Species | |
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Tomiostrobus is an extinct quillwort genus from the Early Triassic of Australia, China and Russia, which was especially widespread in the aftermath of Permian Triassic mass extinctions.