Tomiostrobus

{{Short description|Extinct genus of spore-bearing plants}}

{{Automatic taxobox

| image = Tomiostrobus australis.jpg

| image_caption = Fertile plant of Tomiostrobus australis from Early Triassic Gosford Formation near Terrigal, NSW, Australia.{{cite journal| journal=Journal of Paleontology| title=Earliest Triassic origin of Isoetes and quillwort evolutionary radiation| author=Retallack, Gregory J.| volume=7| pages=500–521|year=1997| issue=3| doi=10.1017/S0022336000039524}}

| fossil_range = {{fossilrange|Early Triassic}}

| taxon = Tomiostrobus

| authority = Retallack

| subdivision_ranks = Species

| subdivision = *Tomiostrobus australis

• Tomiostrobus polaris
• Tomiostrobus radiatus
• Tomiostrobus sinensis

}}

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.{{cite journal| journal=Gondwana Research| title=Permian and Triassic greenhouse crises| author=Retallack, Gregory J.| volume=24| pages=90–103|year=2013| issue=1| doi=10.1016/j.gr.2012.03.003| bibcode=2013GondR..24...90R}}

File:Isoetes and Tomiostrobus.jpg

File:Skilliostrobus australis juvenile.jpg

File:Skilliostrobus australis.jpg