Species: plutonensis JOHNSON & ELLIOTT, 1996
Etymology:
Locality: Mount Elden, Coconino County, Northern Arizona.
Horizon: Martin Formation.
Biostratigraphy:
Age: Frasnian Stage, Lower Late Devonian Epoch, Late Devonian.
Syntypes:
MNA P1.436: Inferognathal.
MNA V6590:
MNA V6612: Postpineal plate.
MNA V6613: Left central plate.
MNA V6614: Right paranuchal plate.
MNA V6615: Left postorbital plate.
MNA V6616: Left preorbitla plate.
MNA V6621: Marginal plate.
MNA V6623: Submarginal plate.
MNA V6625: Median dorsla plate.
MNA V6630: Dorsal fin spine.
MNA V6632: Anterior dorsolatral plate.
MNA V6647: Anterior lateral plate.
MNA V6662: Superorgnathal.
MNA V6665: Anterior median plate.
MNA V6698: Anterior ventrolateral plate.
MNAV6699: Spinal plate.
Referred material:
MNA P1.423:
MNA P1.428:
MNA P1.431:
MNA P1.432:
MNA P1.434:
MNA P1.439:
MNA P1.455:
MNA P1.456:
MNA V6575-V6577:
MNA V6585: Infreognathal:
MNA V6586-V6589:
MNA V6591-V6600:
MNA V6617: Left preorbital plate.
MNA V6618:
MNA V6619: Left preorbital plate.
MNA V6620:
MNA V6622:
MNA V6624:
MNA V6626-V6627:
MNA V6628: Median dorsal spine.
MNA V6629:
MNA V6631: Dorsl fin spine.
MNA V6633: Anterior dorsolateral plate.
MNA V6634-V6644:
MNA V6645: Anterior lateral plate.
MNA V6646:
MNA V6648: Anterior lateral plate.
MNA V6649-V6661:
MNA V6663:
MNA V6664: