Marchantiopsida

{{Short description|Class of liverworts}}

{{Automatic taxobox

| image = Marchantia polymorpha 20100619 44.jpg

| image_caption = Marchantia polymorpha

| taxon = Marchantiopsida

| authority = Cronquist, Takht. et W.Zimm., 1966{{cite journal | last = Cronquist | first = A. | author2= Takhtajan, A. | author3= Zimmermann, W. | year= 1966 | title = On the higher taxa of Embryobionta | journal = Taxon | volume = 15 | number = 4 | pages = 129–168 | doi = 10.2307/1217531 | jstor = 1217531 }}

| subdivision_ranks = Orders

| subdivision = Blasiidae

• Blasiales

Marchantiidae

• Lunulariales
• Marchantiales (complex thalloids)
• Neohodgsoniales
• Sphaerocarpales (bottle liverworts)

}}

Marchantiopsida is a class of liverworts within the phylum Marchantiophyta.{{cite journal | author=Söderström | year=2016 | title=World checklist of hornworts and liverworts | journal=PhytoKeys | issue=59 | pages=1–826| doi=10.3897/phytokeys.59.6261|display-authors=etal | pmid=26929706 | pmc=4758082 | doi-access=free }} The species in this class are known as complex thalloid liverworts. The species in this class are widely distributed and can be found worldwide.{{Cite web|title=Class Marchantiopsida {{!}} Introduction to Bryophytes|url=http://blogs.ubc.ca/biology321/?page_id=74|access-date=2022-02-19|language=en-US}} Complex oil bodies are only found in the gametophyte.[https://academic.oup.com/jxb/article/73/13/4427/6565307?login=false Liverwort oil bodies: diversity, biochemistry, and molecular cell biology of the earliest secretory structure of land plants]