Pseudoscapanorhynchidae

{{short description|Family of fishes}}

{{Automatic_taxobox

| image = Cretodus crassidens vertebrae and teeth.jpg

| image_caption = Teeth and vertebrae of Cretodus

| taxon = Pseudoscapanorhynchidae

| authority = Herman, 1979{{cite journal |last1=Herman |first1=J. |date=1979 |title=Réflexions sur la systématique des Galeoidei et sur les affinités du genre Cetorhinus à l'occasion de la découverte d'éléments de la denture d'un exemplaire fossile dans les Sables du Kattendijk à Kallo (Pliocène inférieur, Belgique) |journal=Annales de la Société géologique de Belgique |volume=102 |issue=1 |pages=357–377 |url=https://popups.uliege.be/0037-9395/index.php?id=4357}}

| subdivision_ranks = Genera

| subdivision =

• †Cretodus
• †Eoptolamna
• †Leptostyrax
• †Lilamna
• †Protolamna
• †Pseudoscapanorhynchus

| synonyms =

• Cretodontidae
  Zhelezko in Zhelezko & Kozlov, 1999{{cite book |last1=Zhelezko |first1=V.I. |last2=Kozlov |first2=V.A. |date=1999 |title=Elasmobrankhii i biostratigrafiya paleogena Zaural'ya i Sredney Azii [Elasmobranchii and Palaeogene biostratigraphy of Trans Urals and Central Asia] |url=https://www.geokniga.org/books/6287 |location=Ekaterinburg |publisher=Russian Academy of Sciences, Urals Branch}}
• Eoptolamnidae
  Kriwet et al., 2008{{cite journal |last1=Kriwet |first1=J. |last2=Klug |first2=S. |last3=Canudo |first3=J.I. |last4=Cuenca-Bescos |first4=G. |date=2008 |title=A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii) |journal=Zoological Journal of the Linnean Society |volume=154 |issue=2 |pages=278–290 |doi=10.1111/j.1096-3642.2008.00410.x |doi-access=free}}

| fossil_range = {{fossil range|139.8|66.0|latest=33.9|Valanginian-Maastrichtian|PS=(possible Eocene occurrence)}}

}}

Pseudoscapanorhynchidae is a family of extinct mackerel sharks that lived during the Cretaceous and potentially the Paleogene. It currently includes Cretodus, Eoptolamna, Leptostyrax, Protolamna, Pseudoscapanorhynchus, and possibly Lilamna.{{cite journal |last1=Shimada |first1=K. |last2=Everhart |first2=M.J. |date=2019 |title=A new large Late Cretaceous lamniform shark from North America, with comments on the taxonomy, paleoecology, and evolution of the genus Cretodus |journal=Journal of Vertebrate Paleontology |volume=39 |issue=4 |pages=e1673399 |doi=10.1080/02724634.2019.1673399 |doi-access=|bibcode=2019JVPal..39E3399S |s2cid=209439997 }}{{cite journal |last1=Greenfield |first1=T. |date=2021 |title=Lilamna nom. nov., a new replacement name for Archaeolamna Li, 1997 (Chondrichthyes: Lamniformes: ?Pseudoscapanorhynchidae) |journal=Zoosystematica Rossica |volume=30 |issue=2 |pages=213–214 |doi=10.31610/zsr/2021.30.2.213 |doi-access=|s2cid=241795349 }}