Cephalaspidomorphi

New Latin, from Ancient Greek κεφαλή (kephalḗ, “head”) + stem of ἀσπίς (aspís, “shield”) +‎ -morphi

†Cephalaspidomorphi

1. A taxonomic class within the subphylum Vertebrata – jawless fish, all of which are extinct in most current classifications.

• In much of the 20th century this class included lampreys (Petromyzontidae).

• (class): Eukaryota - superkingdom; Animalia - kingdom; Bilateria - subkingdom; Deuterostomia - infrakingdom; Chordata - phylum; Chordata Craniata - clade; Vertebrata - subphylum; Hyperoartia - clade

• (class): †Atelaspidiformes, †Birkeniiformes, †Cephalaspidiformes, †Galeaspidiformes, †Pituriaspidiformes, †Tremataspidiformes - orders

• †Anaspida
• †Galeaspida
• †Osteostraci
• †Pituriaspida

• Ruggiero MA, Gordon DP, Orrell TM, Bailly N, Bourgoin T, Brusca RC, et al. (2015) A Higher Level Classification of All Living Organisms. PLoS ONE 10(4): e0119248. doi: 10.1371/journal.pone.0119248. pmid:25923521