Dichotomous Key/Actinopterygii

Dichotomous Key: Selachimorpha Kingdom: Animalia Phylum: Animalia Subphylum: Chordata Class: Selachimorpha Information related to Selachimorpha Wikipedia Wikispecies Wikicommons

Parent key: Chordata Subphyla Vertebrata Key: Selachimorpha Vertebrata Clerck, 1757

1

• Spiracles
  • Present - Chondrostei
  • Either only remnants present or spiracles absent - #2

2

• Spiracles
  • Remnants present - Holostei
  • Absent - Teleostei