Cymatosaurus

{{Short description|Extinct genus of reptiles}}

{{Automatic taxobox

| fossil_range = Early-Middle Triassic, {{fossil_range|247.5|237}}

| image = Cymatosaurus and pachypleurosaur humeri.png

| image_caption = Cymatosaurus and pachypleurosaur humeri

| display_parents = 2

| taxon = Cymatosaurus

| authority = Fritsch, 1894

| subdivision_ranks = Species

| subdivision =

• †C. fridericianus Fritsch, 1894 (type)
• †C. latifrons Gürich, 1884
• †C. multidentatus (von Huene, 1958)
• †C. minor Rieppel & Wernburg, 1998
• †C. erikae Maisch, 2014{{Cite journal|author=Michael W. Maisch |year=2014 |title=A well preserved skull of Cymatosaurus (Reptilia: Sauropterygia) from the uppermost Buntsandstein (Middle Triassic) of Germany |journal=Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen |volume=272 |issue=2 |pages=213–224 |doi=10.1127/0077-7749/2014/0407 }}

}}

Cymatosaurus is an extinct genus of pistosauroid or nothosauriform sauropterygian. It is known to have been alive from the Early Triassic to the Middle Triassic period (latest Olenekian to Anisian stages) of Germany and they seem to originate from the Netherlands.{{Cite journal | last1 = Klein | first1 = N. | editor1-last = Farke | editor1-first = Andrew Allen | title = Long Bone Histology of Sauropterygia from the Lower Muschelkalk of the Germanic Basin Provides Unexpected Implications for Phylogeny | doi = 10.1371/journal.pone.0011613 | journal = PLOS ONE | volume = 5 | issue = 7 | pages = e11613 | year = 2010 | pmid = 20657768| pmc =2908119 | bibcode = 2010PLoSO...511613K | doi-access = free }}{{cite journal|author1=Sander, P.M.|author2=Klein, N.|author3=Albers, P.C.H.|author4=Bickelmann, C.|author5=Winkelhorst, H.|year=2014|title=Postcranial morphology of a basal Pistosauroidea (Sauropterygia) from the Lower Muschelkalk of Winterswijk, The Netherlands|journal=Paläontologische Zeitschrift|volume=88|issue=1 |pages=55–71|doi=10.1007/s12542-013-0181-5|bibcode=2014PalZ...88...55S |s2cid=129760276 |url=https://www.researchgate.net/profile/Paul-Sander/publication/257787566}} It was small to medium-sized for an eosauropterygian, measuring {{convert|1|-|1.2|m|ft}} long.