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: †Acanthodii
Ordo: †Ischnacanthiformes
Familiae: Ischnacanthidae - Poracanthodidae
Genus inc. sedis: †Machaeracanthus
References
http://media.wiley.com/product_data/excerpt/17/04712503/0471250317.pdf
Vernacular names
latviešu: Išnakantveidīgās
русский: Ишнакантообразные
Ischanacanthiformes is a prehistoric order of "acanthodian" stem-chondrichthyans found in Canada, Ukraine and United Kingdom. Members of this order were nektonic carnivores,[1] eating animals that swim rather than plankton. They had slender builds, light armor, deeply inserted spines, shark-like teeth, and two dorsal fins.[1] Some species were around 2 meters (6.56 feet) long.[2] It was described by Berg in 1940.[3][4]
References
McGraw-Hill Dictionary of Scientific & Technical Terms (6 ed.). McGraw-Hill Companies, Inc. 2003.
"Palaeos Vertebrates Acanthodii: Teleostomi". palaeos.com. Retrieved 2018-09-30.
"†order Ischnacanthiformes Berg 1940 (spiny fish)". Fossilworks. Archived from the original on 12 October 2022. Retrieved 11 January 2014.
Burrow, Carole. Acanthodians with dentigerous jaws: the Ischnacanthiformes and Acanthodopsis. Department of Zoology and Entomology, University of Queensland.
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