Litothallus

{{Short description|Extinct genus of plants}}

{{Speciesbox

| name = Litothallus

| taxon = Litothallus ganovex

| authority = Bomfleur et al, 2009 {{Cite journal | last1 = Bomfleur | first1 = B. | last2 = Krings | first2 = M. | last3 = Kaštovský | first3 = J. | last4 = Kerp | first4 = H. | title = An enigmatic non-marine thalloid organism from the Triassic of East Antarctica | doi = 10.1016/j.revpalbo.2009.06.004 | journal = Review of Palaeobotany and Palynology | volume = 157 | issue = 3–4 | pages = 317 | year = 2009 }}}}

Litothallus is a genus of non-marine thalloid organism found in overbank deposits from the Triassic of Antarctica. It looks a bit like Hildenbrandia, and was composed of up to 15 layers of non-mineralized cellular sheets.{{Cite journal

| last1 = Bomfleur | first1 = B.

| last2 = Krings | first2 = M.

| last3 = Kerp | first3 = H.

| title = Thalloid organisms and the fossil record: New perspectives from the Transantarctic Mountains

| journal = Plant Signaling & Behavior

| volume = 5

| issue = 3

| pages = 293–295

| year = 2010

| pmid = 20081351

| pmc = 2881282

| doi = 10.4161/psb.5.3.10736

}}