Goniaceae
{{Short description|Family of algae}}
{{Automatic taxobox
|image=Gonium pectorale EPA.jpg
| taxon = Goniaceae
| subdivision_ranks = Genera
| subdivision =
}}
Goniaceae is a family of algae in the order Chlamydomonadales, that includes the genera Astrephomene and Gonium.{{cite journal |last=Nozaki |first=H. |last2=Kuroiwa |first2=T. |date=1992 |title= Ultrastructure of the extracellular matrix and taxonomy of Eudorina, Pleodorina and Yamagishiella gen. nov. (Volvocaceae, Chlorophyta)|url= http://www.phycologia.org/doi/abs/10.2216/i0031-8884-31-6-529.1|archive-url= https://archive.today/20140611050402/http://www.phycologia.org/doi/abs/10.2216/i0031-8884-31-6-529.1|url-status= usurped|archive-date= June 11, 2014|journal= Phycologia|volume= 31|issue= 6|pages= 529–541|doi= 10.2216/i0031-8884-31-6-529.1|accessdate=9 June 2014|url-access= subscription}} Members of the Goniaceae are distinguished from those of the Volvocaceae by having each cell surrounded by a tripartite boundary of the extracellular matrix, as opposed to the entire colony being surrounded by the tripartite boundary in Volvocaceae. Goniaceae is the sister group to Volvocaceae.{{Cite journal |last=Herron |first=Matthew D. |date=2016 |title=Origins of multicellular complexity: Volvox and the volvocine algae |journal=Molecular Ecology |volume=25 |issue=6 |pages=1213–1223 |doi=10.1111/mec.13551 |pmc=5765864 |pmid=26822195|bibcode=2016MolEc..25.1213H }}