Species: fumosus EATON, 1995
Etymology: Greek, fumosus, "smokey," after the Smoky Hollow Member of the Straight Cliffs Formation, from which all specimens were recovered.

Holotype: MNA V6122

Locality: MNA Locality 995, approximately 7.5 km northeast of the town of Henrieville, Bryce Valley, east of Bryce Canyon National Park, Garfield County, Utah.

Horizon: Smoky Hollow Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Upper Turonian Stage, upper Gallic subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material: M1.

Hypodigm:

MNA V5639, V5643, V6109, V7468, V7469, V7457, V7476: p4.

MNA V6108, V6110, V6116, V6120, V6298, V6346, V6478, V6761, V6764, V6768, V6769, V6772, V6775, V7357, V7376, V7377, V7378, V7379, V7365, V7400, V7412, V7426, V7430, V7464, V7466: m1.

MNA V6117, V6762, V6765, V7360, V7367, V7406, V7422, V7432, V7438, V7439, V7440, V7446, V7448, V7449, V7454, V7487, V7491, V7492, V7493, V7494: m2.

MNA V6114, V6349, V6496, V7359, V7366, V7386, V7417, V7418, V7425, V7434, V7435, V7447, V7452, V7457, V7467: P4.

MNA V5641, 5642, V5645, V6106, V6112, V6135, V6360, V7373, V7374, V7375, V7389, V7392, V7401, V7403, V7410, V7421, V7427, V7428, V7437, V7443, V7444, V7445, V7458, V7488: M1.

MNA V5649, V6448, V607, V6494, V6757, V6767, V7352, V7353, V7358, V7393, V7395, V7398, V7399, V7404, V7414, V7415, V7424, V7433, V7436, V7451, V7456, V7481, V7482: M2.

 

Locality: MNA Loc. 1003, Bryce Valley, east of Bryce Canyon National Park, southwestern Utah.

Horizon: Smoky Hollow Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Upper Turonian Stage, upper Gallic subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material:

MNA V5330: p4.

MNA V5333, V7380, V7381, V7383, V7384, V7463, V7470: m1.

MNA V5336, V7485, V7489: M2.

MNA V7459: P4.

MNA V7479: M1.

MNA V5335, V7477, V7478: M2.

 

Locality: OMNH Loc. 4, Bryce Valley, east of Bryce Canyon National Park, southwestern Utah.

Horizon: Smoky Hollow Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Upper Turonian Stage, upper Gallic subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material:

OMNH 22483, 25444: M1.

OMNH 22447, 22450, 224577, 22481, 23030, 25445, 25447, 25448, 25449, 25450: M2.

OMNH 22462, 22476, 23008: P4.

OMNH 22456, 22463, 22482, 22485, 230321, 25465, 25469: M1.

OMNH 23013, 25470, 25471, 25472, 25478, 25480: M2.

 

Locality: OMNH Locality V60, Bryce Valley, east of Bryce Canyon National Park, southwestern Utah.

Horizon: Smoky Hollow Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Upper Turonian Stage, upper Gallic subepoch, lower Gulf Epoch, Early Late Cretaceous.

OMNH 23083, 24511, 24513, 24515, 24517, 24518: p4.

OMNH 23068, 23082, 23084, 23085, 23087, 24520, 24521, 24522, 24524, 24534, 24562: m1.

OMNH 23090. 23091, 23093, 23094, 23095, 23096, 24534, 24537, 24538, 24539, 24540, 24541, 24542, 24548, 24550, 24553: m2.

OMNH 23058, 23070, 23071, 23081, 24575, 24576, 24578: M1.

OMNH 23076, 23079, 23080, 24582, 24584, 24588, 24589, 24590, 24591, 24592: M2.

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Species: hadrosus EATON, 1995
Etymology: Greek, hadrosus, "stout."

Holotype: OMNH 25467

Locality: OMNH Loc. V4, Bryce Valley, east of Bryce Canyon National Park, southwestern Utah.

Horizon: Smoky Hollow Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Upper Turonian Stage, upper Gallic subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material: M1.

Hypodigm

OMNH 25443: m1.

OMNH 22445, 25468: M1.

OMNH 25462: P4.

 

Locality: MNA Loc. 995, Bryce Valley, east of Bryce Canyon National Park, southwestern Utah.

Horizon: Smoky Hollow Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Upper Turonian Stage, upper Gallic subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material:

MNA V7379, 7474: m2.

MNA V6302, V7371: m1.

MNA V6344: M1.

MNA V5651, V7483: Me.

 

 

Locality: MNA Loc. 1003, Bryce Valley, east of Bryce Canyon National Park, southwestern Utah.

Horizon: Smoky Hollow Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Upper Turonian Stage, upper Gallic subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material:

MNA V5332: M2.

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Species: intermedius EATON & CIFELLI, 2001
Etymology: In reference to its morphological intermediacy between Cedaromys and Bryceomys spp.

Holotype: OMNH 33001

Locality: OMNH V868, San Rafael Swell, Emery County, Utah.

Horizon: Member? Cedar Mountain Formation.

Biostratigraphy:

Age: Age?, Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch-Cenomanian Stage Boundary?, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material: m1.

Referred material:

OMNH 33004, 33006, 33961: m1.

OMNH 32985, 33958: P4.

 

Locality: OMNH V235, San Rafael Swell, Emery County, Utah.

Horizon: Member? Cedar Mountain Formation.

Biostratigraphy:

Age: Age?, Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch-Cenomanian Stage Boundary?, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

OMNH 32929: p4.

OMNH 25735: M1.

OMNH 29756: M2.

 

Locality: OMNH V235, San Rafael Swell, Emery County, Utah.

Horizon: Member? Cedar Mountain Formation.

Biostratigraphy:

Age: Age?, Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch-Cenomanian Stage Boundary?, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

OMNH 27242: M2.

 

Locality: OMNH V794, San Rafael Swell, Emery County, Utah.

Horizon: Member? Cedar Mountain Formation.

Biostratigraphy:

Age: Age?, Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch-Cenomanian Stage Boundary?, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

OMNH 34004, 34005: p4.

 

Locality: OMNH V695, San Rafael Swell, Emery County, Utah.

Horizon: Member? Cedar Mountain Formation.

Biostratigraphy:

Age: Age?, Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch-Cenomanian Stage Boundary?, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

OMNH 33174: m1.

OMNH 27553: M1.

OMNH 26679, 27453: M2.

 

Locality: OMNH V794, San Rafael Swell, Emery County, Utah.

Horizon: Member? Cedar Mountain Formation.

Biostratigraphy:

Age: Age?, Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch-Cenomanian Stage Boundary?, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

OMNH 30563, 30564, 30566, 30569: m2.

OMNH 30532: M2.

 

= Paracimexomys New sp. A. EATON & NELSON, 1991

Locality: Locality RRQ, San Rafael Swell, Utah.

Horizon: Member? Cedar Mountain Formation.

Biostratigraphy:

Age: Age?, Stage?, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

FHSM 20358: LLP4.

 

Locality: Museum of Northern Arizona Locality 1072, San Rafael Swell, Utah.

Horizon: Member? Cedar Mountain Formation.

Biostratigraphy:

Age: Age?, Stage?, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

MNA V5660: LLM2.

MNA V5816: Anterior half of URP4.

 

WEAVER, WILSON, KRUMENACKER, McLAUGHLIN, MOORE & VARRICCHIO, 2019

Locality: H34D site (Idaho Museum of Natural History locality 2167), northern Caribou County, Idaho.

Horizon: Wayan Formation.

Biostratigraphy:

Age: Albian Stage, Middle Gallic subepoch, upper Early Cretaceous Epoch, Early Cretaceous- Cenomanian Stage, Upper Gallic Subepoch, Lowermost Gulf Epoch, Middle Cretaceous.

Material:

IMNH 50883: A left M2.