Genus: Tecovasuchus MARTZ & SMALL,
2006
= Genus: Nova Taxon A MARTZ, MUELLER & SMALL, 2003
Etymology: In reference to the Tecovas Formation, from which all currently
know material is derived, and Greek, suchos, "crocodile."
Species: chatterjeei MARTZ & SMALL, 2006
Etymology: In honor
of Dr. Sankar Chatterjee for his guidance as our mentor and his contributions
to Triassic vertebrate paleontology.
Holotype: TTUP 00545
Locality: Excat locality unknown, in the vicinity of Rotten Hill, along breaks of Sierrita de la Cruz Creek, northeast of Amarillo, between the towns of Boden and Tascosa, Oldham County, Texas.
Horizon: Tecovas Formation, Chinle Group (Dockum Group).
Biostratigraphy:
Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material: 5 almost complete paramedian osteoderms with fragments of at least 3 otehrs, one nearly complete lateral osteoderm and fragments of at least one other, partial braincase, and partial vertebra. A badly weathered vertebra and a rib are dubiously assoicated with tehrest of the material.
Referred material:
TMM 31173-54: Partial left paramedian osteoderm.
Locality: L-7 Ranch near Cedar Hill, Crosby County, Western Texas.
Horizon: Tecovas Formation, Chinle Group (Dockum Group).
Biostratigraphy:Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
TTUP-09222: An almost complete left dorsal paramedian osteoderm.
Locality: Davidson Creek, Crosby County, Western Texas.
Horizon: Tecovas Formation, Chinle Group (Dockum Group).
Biostratigraphy:Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
TTUP-07244: An incomplete dorsal paramedian osteoderm.
HECKERT, SPIELMANN, LUCAS & HUNT, 2007
Locality: Crosby County, Texas.
Horizon: Tecovas Formation, Chinle Group (Dockum Group).
Biostratigraphy:Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UMMP 8869: Complete lateral osteoderm.
UMMP 9600: A complete right anterior dorsal paramedium osteoderm.
Locality: Placerias quarry (UCMP A269, MNA 207C), Big Hollow Wash near Romero Springs, a small valley 6 1/2 miles (approximately 10.4 km) S 65"W of St. Johns, Apache County, Arizona.
Note: Located 0.3 miles northwest of Romero Springs at approximately Long. 109'28'W and lat. 34"27'N on the USGS St. Johns quadrangle of 1921.Horizon: Bluewater Creek Formation, Lower Chinle Group.
Biostratigraphy:
Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
MNA V2898: An incomplete left lateral osteoderm.
Locality: Downs Quarry (MNA Loc. 207N), approximately 72 m east of Placerias Quarry, Big Hollow Wash near Romero Spring, approximately 10.4 km southwest of St. Johns, Apache County, Arizona.
Horizon: Bluewater Creek Formation, Lower Chinle Group.
Biostratigraphy:
Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
MNA V3202: Several osteoderms, including incomplete right lateral and paramedian osteoderms.
= Paratypothorax sp HECKERT, 1997
Locality: NMMNH L-3252, Zuni Mountains, West Central New Mexico.
Horizon: Bluewater Creek Formation, Lower Chinle Group.
Biostratigraphy:
Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
NMMNH P-18305: An incomplete left lateral osteoderm.
Locality: NMMNH P-1186, New Mexico.
Horizon: Los Esteros Member, Santa Rosa Formation.
Biostratigraphy:
Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
NMMNH P-25641: An incomplete right? lateral osteoderm, left? lateral osteoderm, and 2 dorsal paramedian osteoderm fragments.
PARKER, 2005
Locality: Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
PEFO 37871: partial paramedian osteoderm.
MNA V3000: Left trunk lateral osteoderm.
= Desmatosuchinae gen. sp indet. LUCAS, HECKERT & HUNT, 1995
Locality: “near the river crossing of the old Spur-Crosbyton road”, Crosby County, Texas.
Horizon: Tecovas Member, Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UMMP 9600: A right paramedian scute.
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