Genus: Arotus COPE, 1877
Etymology:

Species: hieroglyphus (COPE, 1876) COPE, 1877
Etymology:
= Ceratodus hieroglyphus COPE, 1876

Holotype: AMNH 7080

Locality: Unreported locality along or adjacent to Missouri River Valley, between Fort Benton and Amell's Creek/Cow Island, northdenttral, Montana.

Horizon: Judith River Formation.

Biostratigraphy:

Age: Campanian Stage, Late Senonian Subepoch, Late Gulf Epoch, Late Cretaceous.

Material: Fragment of a dermal plate with rugose ornament described by COPE as a dental element.

Referred material:

BRINKMAN, KUNDRAT, WARD, MURRAY, AIMBETOV, Van LOON & BANERJEE, 2025

Locality: Dzhyrakuduk locality, site CBI-14, north of Bukhara in central Kyzylkum Desert, Uzbekistan.

Horizon: Lower part of Bissekty Formation.

Biostratigraphy:

Age: Coniacian Stage, Lower Senonian Subepoch, Lower Gulf Epoch, Late Cretaceous.

Material:

UPJS-SUDE_0005 t0 _0007, _0059: Scales.

ROM VP 51972: 17 scales.

ROM VP 52176: 6 scales.

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