Kaibabvenator

{{Short description|Extinct genus of cartilaginous fishes}}

{{Use dmy dates|date=August 2024}}

{{Speciesbox

| image = Kaibabvenator swiftae.jpg

| image_alt =

| image_caption = Comparison of K. swiftae, Diablodontus, and Glikmanius

| fossil_range = {{fossil range|272.5|268|Permian}}

| genus = Kaibabvenator

| species = swiftae

| authority = Hodnett et al. 2012

| parent_authority = Hodnett, Elliot, Olson & Wittke, 2012{{cite journal|doi=10.1080/08912963.2012.683193|title=Ctenacanthiform sharks from the Permian Kaibab Formation, northern Arizona|journal=Historical Biology|volume=24|issue=4|pages=381|year=2012|last1=Hodnett|first1=John-Paul M.|last2=Elliott|first2=David K.|last3=Olson|first3=Tom J.|last4=Wittke|first4=James H.|bibcode=2012HBio...24..381H |s2cid=85332499}}

| synonyms =

| synonyms_ref = {{citation needed|date=}}

}}

Kaibabvenator swiftae is a very large, extinct ctenacanthiform fish that lived in marine environments in what is now Arizona, during the Middle Permian Period.{{Cite web |title=†Kaibabvenator Hodnett et al. 2012 (elasmobranch) |url=https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=244570 |access-date=27 August 2023 |website=fossilworks.org}} K. swiftae is known from large teeth up to 30 millimeters long found in the Kachina Microsite, of the lower Fossil Mountain Member, in the Kaibab Formation near Flagstaff, Arizona, suggesting a total body length of around {{Convert|5-6|m|ft}}.{{Cite journal |last1=Hodnett |first1=John-Paul M. |last2=Toomey |first2=Rickard |last3=Egli |first3=H. Chase |last4=Ward |first4=Gabe |last5=Wood |first5=John R. |last6=Olson |first6=Rickard |last7=Tolleson |first7=Kelli |last8=Tweet |first8=Justin S. |last9=Santucci |first9=Vincent L. |date=February 2024 |title=New ctenacanth sharks (Chondrichthyes; Elasmobranchii; Ctenacanthiformes) from the Middle to Late Mississippian of Kentucky and Alabama |url=https://www.tandfonline.com/doi/full/10.1080/02724634.2023.2292599 |journal=Journal of Vertebrate Paleontology |volume=43 |issue=3 |language=en |doi=10.1080/02724634.2023.2292599 |issn=0272-4634|url-access=subscription }} The specific name honors researcher Sandra Swift for her paleontological contributions to Northern Arizona University.