Heteroptychodus steinmanni

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: Chondrichthyes
Subclassis: Elasmobranchii
Infraclassis: Euselachii
Division/Cohort: Neoselachii
Subdivision/Subcohort: Selachimorpha
Familia: †Ptychodontidae
Genus: †Heteroptychodus

Species: †Heteroptychodus steinmanni

Name

†Heteroptychodus steinmanni Yabe & Obata, 1930

References

• Cuny, G., Suteethorn, V., Kamha, S., Buffetaut, E. & Philippe, M. 2006. A new hybodont shark assemblage from the Lower Cretaceous of Thailand. Historical Biology 18(1): 21–31. DOI: 10.1080/08912960500510495 Reference page. 
• Yabe, H. & Obata, T. 1930. On some fossil fishes from the Cretaceous of Japan. Japanese Journal of Geology and Geography 3: 1-7, 2 pl. Reference page.