Genus: Docodon MARSH, 1881
Etymology: Greek, dokos, “beam, rafter” and Greek, odon, “tooth”: Beam tooth.
= Diplocynodon MARSH, 1880 non POMEL, 1847
Etymology: Greek, diplos, “double,” Greek, kyon, “dog” and Greek, odon, “tooth”: Double canine tooth.
= Dicrocynodon MARSH, 1880
Etymology: Greek, dikros, “double”, Greek, kyon, “dog” and Greek, odon, “tooth”: Double canine tooth.
= Ennacodon MARSH, 1887
Etymology:

Species: victor (MARSH, 1880) MARSH, 1881
Etymology:
= Diplocynodon victor MARSH, 1880
= Dicrocynodon victor MARSH, 1880

Holotype: YPM 11826

Locality: Reeds YPM Quarry 9, (Mammal Quarry), T22N, R77W, Sec. 12, Como Bluff, Albany County, Wyoming.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 3.

Age: Upper Part, Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.

Material: Right lower jaw nearly complete, with c, p1-4, m1-6.

Referred material:

AMNH 104798:

AMNH 104801:

AMNH 104796:

AMNH 104797:

AMNH 104800:

AMNH 104828:

 


FOSTER & MARTIN, 1995, MARTIN & FORSTER, 1998

Locality: SDSM locality V941, Little Houston Quarry, Crook County, Wyoming.

Horizon: Upper Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 4.

Age: Upper Part, Comobluffian age, Tithonian Stage, uppermost Malm Epoch, Late Jurassic.
Note: Morrison Formation, lower portion of the upper third, Late Jurassic, approximately 10m below the contact with Lower Cretaceous Lakota Formation.

Material:

SDSM 26911: Right dentary ramus with broken m2 or m3 and complete m3 or m4.

FOSTER, TRUJILLO, MADSEN & MARTIN, 2006

SDSM 60480: Partial left dentary with 4 molars.

SDSM 60482: Partial right dentary with 3 molars.

SDSM 30492: Maxilla fragment with deciduous (?) molar and erupting molar.

MWC 5727: Maxilla fragment wiht premolar.

FOSTER, TRUJILLO, MADSEN & MARTIN, 2006

Locality: MIle 175 Locality, Crook County, Wyoming.

Horizon: Upper Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 4.

Age: Upper Part, Comobluffian age, Tithonian Stage, uppermost Malm Epoch, Late Jurassic.

Material:

UW 20578: Partial right lower molar.

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Species: striatus MARSH, 1881
Etymology:

Holotype: YPM 11823

Locality: Reeds YPM Quarry 9, (Mammal Quarry), T22N, R77W, Sec. 12, Como Bluff, Albany County, Wyoming.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 3.

Age: Upper Part, Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.

Material: Right lower jaw in matrix, internal aspect, with c, p1-4, and m1-5.
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Species: affinis (MARSH, 1887)
Etymology:
= Enneodon affinis MARSH, 1887

Holotype: USNM 2129

Locality: Reeds YPM Quarry 9, (Mammal Quarry), T22N, R77W, Sec. 12, Como Bluff, Albany County, Wyoming.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 3.

Age: Upper Part, Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.
.
Material: Left lower jaw in matrix, outer aspect, with c, p1, p3-4 and m2-4.
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Species: crassus (MARSH, 1887)
Etymology:
= Enneodon crassus MARSH, 1887

Holotype: USNM 2130

Locality: Reeds YPM Quarry 9, (Mammal Quarry), T22N, R77W, Sec. 12, Como Bluff, Albany County, Wyoming.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 3.

Age: Upper Part, Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.

Material: Right lower jaw in matrix, outer aspect, with c, p3-4 and m1-4.
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Species: superus SIMPSON, 1929
Etymology:

Holotype: YPM 10647

Locality: Reeds YPM Quarry 9, (Mammal Quarry), T22N, R77W, Sec. 12, Como Bluff, Albany County, Wyoming.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 3.

Age: Upper Part, Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.

Material: Right maxilla with canine and M1-5.

Referred material:

YPM 13769: Left maxilla with C, P1-3, M1-2 and an isolated molar.

YPM 13770: Right maxilla with P3 and M2-4.

USNM 2715: Right maxilla with P1, P3 and M2-5.

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Species: apoxys ROUGIER, SHETH, CARPENTER, APPELLA-GUISCAFRE, & DAVIS, 2014
Etymology: Greek, apoxys, "tapering off"; in reference to the distinctive diminishing size of the last two lower molars, and to the smaller size of cusp g in compariosn other species of Docodon.
= Docodon sp HARRIS & CARPENTER, 1996

Holotype: DMNH 42198

Locality: DMNH Quarry 6 (Small’s Quarry), DMNH Loc., 6111, 1992 Stegosaurus stenops Quarry, Garden Park, near Canon City, Fremont County, Colorado.

Horizon: Lower Upper Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 2.

Age: Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.

Material: A nearly complete left dentary wiht alveoli for il-i4, p1, and crowns of the canine, p2-p4 and m1-m7.

Referred material:

DMNH 42196: A parial left dentary missing most of the post dentary region, preserving crowns of p2-p4 and m1-m7.

DMNH 42187: A partial left dentary missing most of the postdentary region, preserving alveoli for il-i4 and p3, roots of the canine, and crowns of p1, p2, and p4 and m1-m7.

 

= Docodon cf. apoxys FOSTER, PAGNAC & HUNT-FOSTER, 2020

Locality: V9138, Little Houston Quarry, approximately 20 km west of Sundance in southern Crook County, just north of Little Houston Creek, Black Hills, northeast Wyoming.

Horizon: Member?, Morrison Formation.

Biostratigraphy: Zone?

Age: Age?, Stage?, Malm Epoch, Late Jurassic.

Material:

SDSM 60480: Jaw fragment with 3 molars.

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