Species: arcuatus (MARSH, 1896) LUCAS, HECKERT & HUBER, 1998
Etymology: Latin, arcuatus, "bent, curved."
= Stegomus arcuatus MARSH, 1896
= Stegomus arcuatus arcuatus (MARSH, 1896) JEPSEN, 1948

Holotype: Yale Museum No. 1647

Locality: Quarry of Freeman Clark near the State street bridge over the Quinnipiac river in Fair Haven, within the municipality of New Haven, New Haven County, Connecticut.

Horizon:

Biostratigraphy:

Age: Late Triassic.

Material: Dorsal scutes.

Referred material:

LUCAS & HECKERT, 1997, HECKERT & LUCAS, 1998

Locality: Eastern New Mexico.

Horizon: Bull Canyon Formation.

Biostratigraphy:

Age: Revueltian, Early Norian Substage, Early Norian Epoch, Middle Late Triassic Epoch, Late Triassic.

Material:

NMMNH P 17212: 2 partial right dorsal paramedian scutes.

NMMNH P 17213: Left dorsal paramedian scute.

NMMNH P 17215: 2 partial left dorsal paramedian scutes.

NMMNH P 17216: A partial right dorsal paramedian scute.

NMMNH P 17223: A possible lateral scute.

NMMNH P 17228: Several delicate, faintly decorated fragments of paramadian and lateral scutes.

NMMNH P 17163: 5 dorsal paramedian scute fragments.

NMMNH P 17165: A mid-dorsal paramedian scute.

 

= Stegomus arcuatus jerseyensis JEPSEN, 1948
Etymology: Latin, arcuatus, "bent, curved" and in reference to the state of New Jersey.

Holotype: NJSM No. 10740

Locality: Near Neshanic Station, Somerset County, New Jersey.

Horizon: Passaic Formation.

Biostratigraphy:

Age: Late Triassic.

Material: 9 segments of the caudal scutes and 4 caudal vertebrae.

Referred specimens:

BAIRD, 1986

Locality: Bank of Nishiaskawick Creek, Huntendon County, New Jersey.

Horizon: Passaic Formation.

Biostratigraphy:

Age: Late Triassic.

Material:

YPM [PU] 21750: Natural cast of ventral aspect of skull and dorsal carapace.

 

BAIRD & TAKE,

Locality: Nova Scotia, Canada.

Horizon: Wolfville sandstone, basal formation of the Newark Group.

Biostratigraphy:

Age: Late Triassic.

Material: Caudal scutes and a vertebrae.

 

HUBER, LUCAS & HUNT, 1993

Horizon: Triangle Brick Quarry, Deep River Basin, North Carolina.

Horizon: Lower Sanford Formation, Newark Supergroup.

Biostratigraphy:

Age: Late Triassic.

Material:

NCSM 11756: Natural cast of portion of proximal tail.