Species: tenuirostris OSBORN, 1886
Etymology:
= Tytthoconus tenuirostris (OSBORN, 1886) PALMER, 1903
Holotype: ANSP 10248
Locality: Sanford Basin, Chatham County, North Carolina.
Horizon: Cumnock Formation, Newark Supergroup.
Biostratigraphy:
Age: Late Carnian Stage, Early Late Triassic Epoch, Late Triassic.
Material: Teeth.
Referred material:
SUES, 2001
Locality: USNM Locality 39981, 0.16 km (0.1 miles) east of the eastern branch of the Little Tomahawk Creek, along the former course of VA 652 (old Hundred Road), near Midlothia, 77°40’17”N, 37°27’50”W, Hallsboro 7.5 Minute Quadrangle, Chesterfield County, Virginia.
Horizon: Tomahawk Creek Member, Vinita (Turkey Branch) Formation, Newark Supergroup.
Biostratigraphy:
Age: Early to Middle Carnian Stage, Early Late Triassic Epoch, Late Triassic.
Material:
USNM 437637: Incomplete left dentary lacking much of the articular and coronoid processes, with alveoli for 3 incisors and the canine, 7 mostly broken postcanine teeth, and attached left symphseal end of right dentary.
ROM 44300: Incomplete left dentary with alveoli for one incisor and the canine, 3 postcanine teeth, and the basal portions of 4 postcanines, mandibular symphysis for the most part preserved only as an impression and posterior portion of dentary broken and displaced anterolaterally.
ROM 44301: Anterior portion of right dentary with alveolus for canine, 5 preserved postcanine teeth, and alveoli for 3 postcanines.
USNM 448579: Isolated complete postcanine tooth.
USNM 448600, ROM 44301: Isolated postcanine teeth with most of the root broken off.