Entity:

Concise hierarchy

Current position

Agnatha (Class) Cope, 1889

Ref: M.J. Benton, 2015: [433]; Benton, 2015: box 3.1 (p. 48).

Ref: B. Grzimek et al., 1974: 45. [inferred rank]

*Agnatha* (Class) Cope, 1889	Ref: M.J. Benton, 2015: [433], box 3.1 (p. 48).
*Agnatha* (Class) Cope, 1889	Ref: M.J. Benton, 2005: [389], box 3.1.
*Agnatha* (Class) Cope, 1889	Ref: B. Gardiner et al., 1989: 301.
*Agnatha* (Class) Cope, 1889	Ref: R.L. Carroll, 1988: App. (p. 595).
†*Ostracodermata* (Class)	Ref: B. Grzimek et al., 1974: 45. [inferred rank]