Species: advenus MARSH, 1877
Etymology: Latin, advena, "stranger."

Holotype: YPM 1465

Locality: Wallace County, and Butte Creek, Logan County, Kansas.

Horizon: Smoky Hill Member, Niobrara Formation.

Biostratigraphy:

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

Material: Juvenile right tarso-metatarsal.

Referred material:

Locality: Logan County, Kansas.

Horizon:

Biostratigraphy:

Age:

Material:

KUVP 16112: Fragment of the bill just anterior to the nasal openings, 4 thoracic, 6 cervical vertebrae, fragment of both femora, parts of both tibiotarsi, tarsometatarsus, toes.

KUVP 2290: 4 thoracic, 6 cervical vertebrae, most of the right coracoid, anticular end of left scapula, distal end and portion of the shaft of a right humerus, left radius, left ulna, right and left femora, patella, parts of both tibiotarsi, fibula, tarsometatarsus, toes.

FMNH 395: Mandibular ramus, last unfused thoracic vertebrae, 5 caudal vertebrae and a pygostyle, right and left femora, both tibiotarsi, fibula, tarsometatarsus, toes.

UNSM 20030: First 8 vertebrae anterior to the sacrum, 5 caudal vertebrae and a pygostyle, 4 dorsal and 4 sternal ribs, anterior and lateral margins of the sternum with the entire central portion and the posterior margin missing, scapular end and a fragment of the sternal end of the left coracoid, proximal end and greater portion of the shaft of the left humerus, right side of the pelvis, right femur, patella, both tibiotarsi, fibula, tarsometatarsus, toes.

AMNH 5101: A fragment of the left side of the bill, a fragment of the frontal bone, ventral half of a right quadrate, 22 presacral vertebrae, 5 caudal vertebrae, synsacrum, pelvis.

YPM 1465: Tarsometatarsus and toes.

YPM 5768: Tarsometatarsus and toes.

 

BRODKORB, 1963/LAMBRECHT, 1933

Locality: Butte Creek, Logan County, Kansas.

Horizon: Smoky Hill Member, Niobrara Formation.

Biostratigraphy:

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

Material:

Number: Not given:

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