Species: nisti BAKKER, GALTON, SIEGWARTH & FILLA, 1990
Etymology: Nisti masculine third declension genitive form of “nist” in horror of the National Institute of Standards and Technology.

Holotype: CPS 106

Locality: Drinker nisti Quarry –L & Quarry U (Lower and Upper Big Nose quarry), west Como Bluff, sec. 16, tp 22N, R77W, Albany County, Wyoming.

Horizon: Breakfast Bench Beds, 17 meters below the Dakota Sandstone, Upper Brushy Basin Member, Late Morrison Formation.

Biostratigraphy: Zone 4.

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

Material: Partial subadult skeleton with parts of upper and lower jaws, centra from all sections of the column, partial fore and hind limbs.

Caudal centra.

Ankle bones.

Top, fragmentary metatarsals, bottom, phalanges.

Referred material:

CPS 107: Very young individual, about 1/4 adult size, vertebral centra, proximal radius, distal metatarsals III and astragalus.

CPS 108: 1/2 grown individual, vertebral centra, distal humerus, phalange of hind foot.
Note: Lower level of Big Nose.

CPS 109: 1/2 grown individual, dorsal vertebral centrum.

 

Locality: Op-KAT, East Como Bluff, sec 5, tp 22N, R76W, Albany County, Wyoming.

Horizon: Breakfast Bench Beds, 18 m below Dakota Sandstone, Upper Brushy Basin Member, Late Morrison Formation.

Biostratigraphy: Zone 4.

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

Material:

CPS 197: Fully adult individual, dentary tooth, caudal vertebrae, partial phalanges of pes.

CPS 198: 1/5 grown femur head.

 

Locality: Quarry 9, West Como Bluff, Wyoming.

Horizon: 30 m below the Dakota Sandstone, Upper Brushy Basin Member, Late Morrison Formation.

Biostratigraphy: Zone 4.

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

Material:

USNM 5808: Juvenile femur.

YPM 9524: Anterior maxillary tooth.

 

BAKKER, 1997

Locality: Como Bluff, Wyoming.

Horizon: Upper Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 4.

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

Material:

TATE 545: Tooth.

 

TURNER & PETERSON, 1999

Locality: Two Thigh Quarry, Como Bluff, Como Bluff East (East of Marshall road), Albany 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:

Number: Not given:

Locality: Ninemile Hill Site, Medicine Bow Anticline (also called Flat top Anticline), Carbon 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:

Number: Not given:

 

= Drinker? Sp

Locality: Lynn Quarry, Medicine Bow Anticline (also called Flat top Anticline), Carbon County, Wyoming.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 3.

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

Material:

Number: Not given: