Editing Crayfish (section)

== Fossil record ==

Fossil burrows very similar in construction to those of modern crayfish and likely produced by early crayfish are known from the [[Early Permian]] (~300-270 million years ago) of equatorial [[Pangea]], in what is now North America ([[Washington Formation]]), and Europe ([[Sardinia]]). The oldest body fossils assigned to crayfish are known from the [[Late Triassic]] (~230-200 million years ago) [[Chinle Formation]] of North America, assigned to the species "''Enoploclytia''" ''porteri'' and ''Camborygma eumekenomos,'' which are not assigned to any modern families. An indeterminate member of the modern family [[Cambaridae]] is known from the Late Jurassic [[Morrison Formation]] of North America.<ref>{{Cite journal |last1=Audo |first1=Denis |last2=Hasiotis |first2=Stephen T |last3=Kawai |first3=Tadashi |date=2023-12-01 |title=Diversity and evolutionary history of fossil crayfishes |url=https://academic.oup.com/jcb/article/doi/10.1093/jcbiol/ruad079/7504443 |journal=Journal of Crustacean Biology |language=en |volume=43 |issue=4 |doi=10.1093/jcbiol/ruad079 |issn=0278-0372}}</ref> The earliest records of other modern families date to the Early Cretaceous, including the [[Parastacidae|parastacid]] ''[[Palaeoechinastacus]]'' from Australia which is 115&nbsp;million years old,<ref>{{Cite journal |last1=Martin |first1=Anthony J. |last2=Rich |first2=Thomas H. |last3=Poore |first3=Gary C.B. |last4=Schultz |first4=Mark B. |last5=Austin |first5=Christopher M. |last6=Kool |first6=Lesley |last7=Vickers-Rich |first7=Patricia |date=2008 |title=Fossil evidence in Australia for oldest known freshwater crayfish of Gondwana |url=http://dx.doi.org/10.1016/j.gr.2008.01.002 |journal=Gondwana Research |volume=14 |issue=3 |pages=287–296 |doi=10.1016/j.gr.2008.01.002 |bibcode=2008GondR..14..287M |issn=1342-937X}}</ref> the [[Cambaroididae|cambaroidid]] ''[[Palaeocambarus]]'' from the [[Yixian Formation]] of China which is likely around 120 million years old ([[Barremian]]-[[Aptian]]),<ref name=":0">{{Cite journal |date=2023 |title=Crayfishes from the Jehol biota |url=https://sciencepress.mnhn.fr/en/periodiques/geodiversitas/45/24 |journal=Geodiversitas |language=en |volume=45 |issue=24 |pages=689–719}}</ref> and the [[Astacidae|astacid]] ''"[[Austropotamobius]]" llopisi'' from the [[Las Hoyas]] site in [[Spain]] (Barremian).<ref>{{Cite journal |last1=García-Penas |first1=Álvaro |last2=Ferratges |first2=Fernando Ari |last3=Moreno-Bedmar |first3=Josep Anton |last4=Bover-Arnal |first4=Telm |last5=Gasca |first5=José Manuel |last6=Aurell |first6=Marcos |last7=Zamora |first7=Samuel |date=2023 |title=Decapod crustaceans from the Lower Cretaceous of Spain, with an account of new occurrences in Barremian-Aptian strata of the Maestrazgo Basin |journal=Cretaceous Research |volume=150 |pages=105576 |doi=10.1016/j.cretres.2023.105576 |bibcode=2023CrRes.15005576G |issn=0195-6671|doi-access=free }}</ref>