{{Short description|Extinct genus of fishes}} {{Speciesbox | fossil_range = {{fossilrange|95|93.5|Upper Cenomanian<ref name="sepkoskidb">{{cite journal|last=Sepkoski |first=Jack |title=A compendium of fossil marine animal genera |journal=Bulletins of American Paleontology |volume=364 |page=560 |year=2002 |url=http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=611&rank=class |accessdate=2009-02-27 |url-status=dead |archiveurl=https://web.archive.org/web/20080430004102/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=611&rank=class |archivedate=2008-04-30 }}</ref>}} | taxon = Heterothrissa signeuxae | authority = Gaudant, 1978 | parent_authority = Gaudant, 1978 }}
'''''Heterothrissa''''' is an extinct genus of prehistoric marine ray-finned fish that lived during the Late Cretaceous.<ref name="sepkoskidb">{{cite journal|last=Sepkoski |first=Jack |title=A compendium of fossil marine animal genera |journal=Bulletins of American Paleontology |volume=364 |page=560 |year=2002 |url=http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=611&rank=class |accessdate=2009-02-27 |url-status=dead |archiveurl=https://web.archive.org/web/20080430004102/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=611&rank=class |archivedate=2008-04-30 }}</ref> It contains a single species, '''''H. signeuxae''''' known from the Cenomanian-aged Sannine Formation of Lebanon.'''<ref name=":18">{{Cite journal |last1=Amalfitano |first1=Jacopo |last2=Giusberti |first2=Luca |last3=Fornaciari |first3=Eliana |last4=Carnevale |first4=Giorgio |date=2020-04-03 |title=Upper Cenomanian Fishes from the Bonarelli Level (Oae2) of Northeastern Italy |url=https://riviste.unimi.it/index.php/RIPS/article/view/13224 |journal=Rivista Italiana di Paleontologia e Stratigrafia |volume=126 |issue=2 |doi=10.13130/2039-4942/13224 |issn=2039-4942}}</ref>'''<ref>{{Citation |last1=Maksoud |first1=Sibelle |title=Biostratigraphy and palaeoenvironments of the Upper Cretaceous fossil fish Konservat-Lagerstätten of Lebano |date=2025 |url=https://europepmc.org/article/PPR/PPR1077108 |access-date=2026-05-28 |doi=10.21203/rs.3.rs-7269932/v1 |last2=Hossny |first2=Tamara El |last3=Samankassou |first3=Elias |last4=Cavin |first4=Lionel |last5=Saad |first5=Pierre Abi |last6=Azar |first6=Dany |last7=Piuz |first7=André}}</ref> It was a member of the Ctenothrissiformes, a group of early-diverging acanthomorph relatives.<ref>{{Cite journal |last1=Dornburg |first1=Alex |last2=Townsend |first2=Jeffrey P. |last3=Friedman |first3=Matt |last4=Near |first4=Thomas J. |date=2014-08-08 |title=Phylogenetic informativeness reconciles ray-finned fish molecular divergence times |journal=BMC Evolutionary Biology |language=en |volume=14 |issue=1 |pages=169 |doi=10.1186/s12862-014-0169-0 |doi-access=free |issn=1471-2148 |pmc=4236503 |pmid=25103329 |bibcode=2014BMCEE..14..169D }}</ref>
==See also== {{Portal|Paleontology|Fish}} * Prehistoric fish * List of prehistoric bony fish
==References== {{Reflist}}
{{Taxonbar|from=Q5747864}} Category:Ctenothrissiformes
{{paleo-rayfinned-fish-stub}} {{cretaceous-fish-stub}} Category:Monotypic prehistoric bony fish genera Category:Late Cretaceous bony fish Category:Cenomanian genera Category:Late Cretaceous fish of Asia Category:Fossils of Lebanon Category:Fossil taxa described in 1978