尤金齒目

{{Automatic Taxobox
|fossil_range = 泥盆紀早期至三叠纪早期
| image =
| image_width = 250px
| image_caption =
| image2 = Helicoprion bessonovi cropped.png
| image2_width = 250px
| image2_caption = 旋齒鯊（H. bessonovi）的想像圖
| taxon = Eugeneodontida
| authority = Zangerl, 1981
| subdivision_ranks =
| subdivision =
| synonyms =

• Eugeneodontiformes（）是一类已經絕跡且鮮為人知的奇異軟骨魚。尤金齒目下頜關節和長橈骨支撐的胸鰭上有獨特的“旋齒”。尤金齒目被列入全頭類，現存最親近的親種是短鼻銀鮫科

**†光齿鲨属 Lestrodus*
**†属 Tuyuria*

參考資料
外部連結
*[http://palaeos.com/vertebrates/chondrichthyes/chondrichthyes.html#Eugeneodontida] Palaeos Vertebrates 70.100 Chondrichthyes: Eugnathostomata at paleos.com
*[https://www.jstor.org/pss/1306378 JSTOR: Journal of Paleontology Vol. 70, No. 1 (Jan., 1996), pp. 162-165]
*[http://www.devoniantimes.org/who/pages/sharks.html More about Chondrichthyes] at Devonian Times

尤金齒目