LONG & MURRY, 1995
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:
C. L. Camp collection: 25 presaceral vertebrae (2 sacrals, 14 caudals, 5 scapula, 5 coracoids, 2 interclavicles), 1 clavicle, 4 humeri, 8 ila, 3 pubes, 6 ischia, 15 femora, 4 tibiae, 1 fibula, also numerous isolated skull and manidbular elements, 6 right quadrates established a minimum number of individuals found at the quarry.
MNA Pl. 2984: Left quadrate.
MNA Pl. V3601, MNA Pl. 2961: Right denatries.
MNA Pl. 2782: Tiny left dentary.
MNA P1. 2962, MNA V3746: Dentaries.
MNA Pl. 2849: Cervical centrum.
MNA Pl. 3003: Cervical vertebra.
MNA Pl. 2843, MNA Pl. 2922: Dorsal centra.
MNA Pl. 2844: Posterior dorsal vertebra.
MNA Pl. 2841: Left coracoid.
MNA Pl. V3716: Left pubis.
MNA Pl.2975: Left femur.
MNA Pl. 2814: Femur.
MNA Pl. 3022: Fibula.
MNA Pl. 2866, MNA Pl. 2993: Scutes.
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 Pl. 2675: A beautifully preserved braincase.
Note: Originally believed represented a rauischiuid by JACOBS & MURRY, 1980.MNA V3739: A quadrate and paroccipital process.
MNA V3737: A deep snout.
Note: The above two may belong to the same specimen.MNA V3732: Right quadrate.
MNA Pl. 2731, MNA Pl. 3072: Left quadrates.
MNA V3736: Quadrate.
MNA V3733: Left quadratojugal.
MNA V3726: Left side of skull deck including postorbital and parietal.
MNA Pl. 3062: Right postorbital and fragments.
MNA Pl. 3069: Right jugal.
MNA Pl. 2738: Maxilla.
MNA Pl. 2741: Maxilla with palate.
MNA V3734: Right and left maxilla with palate.
MNA Pl. 3055: Left maxilla (perhaps referable to braincase, etc specimens).
MNA Pl. 3056: Premaxilla (?same individuals MNA Pl. 3055).
MNA V3665: 4 fragments of premaxilla.
MNA Pl.2736: Jaw fragment of alveoli.
MNA Pl. 3088: Jaw fragment.
MNA Pl. 2680: Occipital condyle.
MNA V3601: Right dentary.
MNA Pl. 3054: Left dentary.
MNA Pl. 3057: Right articular and saurangular.
MNA Pl. 3070: Left articular.
MNA V3727: Left articular and saurangular.
MNA Pl. 3059: Left angular.
MNA V3667, MNA Pl 3087, MNA Pl. 3097: Cervical centra.
MNA Pl. 2730: Cervical vertebra.
MNA Pl. 3086: Cervical neural spine.
MNA Pl.3063: Anterior dorsal vertebra.
MNA Pl. 3064: Dorsal centrum.
MNA Pl. 3058: Anterior caudal vertebra.
MNA Pl.2740, MAN Pl. 3060: Left coracoids.
MNA Pl. 3103: Left pubis.
MNA Pl. 3085: Right pubis.
MNA Pl. 3093: Right ischium (probably same individual as MNA Pl. 3085).
MNA Pl. 3080: Fibula.
MNA Pl. 2742: Dermal scutes.
Locality: Blue Hills 1, (UCMP 7307 and 7308), 3 miles NE of St. Johns, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 27048, 27160: Portions of 2 skulls.
Locality: Blue Hills 2 (UCMP 7309), St. Johns, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 27057: Cervical vertebrae and ribs.
Locality: Big Hollow Wash N (USNM), approximately 5 to 6 km northwest of St. Johns, St. Johns Area, Apache County, Arizona.
Horizon: Bluewater Creek Formation, Lower Chinle Group.
Biostratigraphy:
Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
USNM 15680: Vertebrae and pelvic elements.
USNM 18313: Much of postcranium, excellently preserved.
Locality: Picket House Draw (USNM), side wash running into Picket House Draw, approximately 5 km east of St. Johns, Apache County, Arizona.Horizon: Bluewater Creek Formation, 15 m above the Chinle-Moenkopi contact, Lower Chinle Group.
Biostratigraphy:
Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
USNM 17098: Skull and jaws.
Note: In 1946, E. H. Colbert collected a partial skeleton in the Vicinity of St. Johns, near Kern Wash on the Davis Ranch. This specimen is now housed at the AMNH.
Locality: PEFO 085005 (UCMP V85228, PF100), Wizard Wash E, mudstone between Sonsela Sandstone and Brown Sandstone, about 6 m below brown sandstone, Devil’s Playground Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
Number: Not given:
Locality: Devil’s Caldron (UCMP V82254, PF 105), at top of mudstone just below base of Sonsela Sandstone, Devil’s Playground Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
Number: Not given:
Locality: Saurian Valley N 1, PEFO 085004 (UCMP V85225, PF 99) (part of UCMP V7034), fauna at top of Sonsela Sandstone, Devil’s Playground area, Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
Locality: Tepees Northwest, (UCMP Loc. V82273, PF 111d, 112), W 1/2 of NE 1/4, Sec. 24, T 18N, R 24E,in variegated siltstone bed, Tepees Area, Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 126997: Squamosal.
UCMP 126725: Squamosal.
Locality: Phytosaur Basin West, PEFO 085022 (UCMP V82276, PF119). NE 1/4 of SW 1/4, Sec. 26, T 18N, R 24E, Blue Mesa W Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
Number: Not given:
Locality: Dying Ground (PF 121, SMU #228), Sec. 23, T 18N, R 24E in variegated siltstone bed, Blue Mesa W Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Partial skull, squamosal and humerus.
Locality: PEFO 085026 (UCMP V85235, MNA 302:115, PF123), Annie’s Canyon (part of V7038), (old Blue Forest, Petrified Forest, 6 miles SE of Adamana), Blue Mesa W Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: An enormous humerus, right postorbital, frontal and miscellaneous fragments.
Locality: Phytosaur Basin of C. L Camp., PEFO 085023 (UCMP V7039, MNA 302:101, PF120), in Blue Mesa W Area, NW 1/4 of SE 1/4, Sec. 26, T 18N, R 24 E, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 27006: Poorly preserved portions of jaws, with teeth, vertebrae, scutes, fragments of ilium, scapula, humerus, radius, complete astragalus, proximal and distal portions of calcaneum.
Locality: Phytosaur Basin E, PEFO 085024 (UCMP 7040, MNA 302:101, PF 121), in Blue Mesa siltstone of Self (1965) at very top of siltstone just beneath Camp Butte Sandstone, Blue Mesa W Area, Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 27008: Pelvis (left side), portions of both femora, both tibiae, anterior caudal centrum, portions of other centra, fragments of right ischium and ilia, scutes, etc.
Locality: Tepees East, PEFO 085021 (UCMP V82257, PF118), NW 1/4 of NW 1/4, Sec. 24, T 18N, R 24E, in variegated siltstone bed, Blue Mesa W Area, Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Scute.
Locality: Tepees Northeast, PEFO 085020 (UCMP V82248, PF117), SW 1/4 of SW 1/4, Sec. 14, T 18N, R 24E, in variegated siltstone bed, Blue Mesa Area, Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Left frontal.
Locality: Blue Mesa Northwest, PEFO 085061 (UCMP Loc. V82244, PF113), just west of center, Sec. 12, T 18N, R 24E, in variegated siltstone bed, Blue Mesa W Area, Petrified Forest Area, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Left and right squamosal, part of right scapula, left ilium, appendicular scute.
Locality: Camp Butte N1, Dinosaur Wash, Dying Grounds, General Blue Forest Area of C. L. Camp, PEFO 085025 (UCMP V7038, MNA 302:8, SMU 228, PFO 122), on line between NE 1/4 of NW 1/4 and NW 1.4 of NE 1/, Sec. 26, T 18N, Blue Mesa W Area, Petrified Forest, Apache County, Arizona.
Horizon: Upper Blue Mesa Member, Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 26717: Pubis, coracoid, scapula, humerus, femur, vertebrae, etc.
UCMP 26718: Left femur.
UCMP 26697: Sacrals, ischium, rib.
UCMP 26706: Lower jaw.
Locality: PEFO 085044 (UCMP V82234, PF144), Blue Mesa NE2, Fence Line, Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Scute.
Locality: Blue Mesa NE 2, PEFO 085043 (UCMP V82235, MNA 302:73, PF143), Blue Mesa E Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
PEFO 4895: Proximal extremity of humerus and fragment of scapula.
Locality: Lower Billings Gap, PEFO 085046 (UCMP V7042, PF146), Paulcell 6, Petrified Forest, Blue Mesa E Area, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 27017: Limb bone fragments.
Locality: PEFO 085049 (UCMP V84226, PF149), Angry Man Flat, Blue Mesa E Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Complete femur.
Locality: PEFO 085050 (UCMP V85050, PF150), Paulcell 4, Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Scute.
Locality: PEFO 085048 (UCMP V84232, PF148), Paulcell 5, Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Left squamosal.
Locality: Base of Point of Bluff, PEFO 085060 (UCMP 7046, MNA 302:97, USNM 19, PF157),
Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Squamosal.
Locality: Point of Bluff S, PEFO 085059 (UCMP V7046A, PF156), Point of Bluff Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Squamosal.
Locality: Agate Bridge NE (UCMP V82243), King’s Throne Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Teeth, dorsal vertebra.
Locality: Agate Bridge N (UCMP V82339, PF 161), NE 1/4 of SE 1/4 and SE 1/4 of NE 1/4, SEC. 4, T 17N, R 24E, near base of black/grey siltstone, approximately 6 m below Sonsela Sandstone, resting on a loose sandstone, Lot’s Wife Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 129823: Left scapula.
Locality: Agate Bridge Southeast, PEFO 085068 (UCMP V82245, PF165), E 1/2 of SE 1/4, Sec. 10, T 17N, R 24 E, Agate Bridge Southeast Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 129874: Scute.
Locality: Jasper Forest West, PEFO 085069 (UCMP V82237, PF166), SW 1/4 of NE 1/4, Sec. 8, T 17N, R 24E, Jasper Forest Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Quadrate and scute.
Locality: Battleship Northwest, (UCMP Loc. V8261), on line between NE 1/4 of SE 1/4, Sec. 17, and NW 1/4 of SW 1/4, Sec. 16, T 17N, R 24E, Battleship Northwest Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 13007: Scute.
Locality: Battleship W1, PEFO 08574 (UCMP V82260, PF 171), Battleship West Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Left scapulocoracoid.
Locality: Crystal Forest, PEFO 085077 (UCMP V82238, PF172) (part of ucmp v7037), log level, just below Sonseal Sandstone, NE 1/4 of NW 1/4, Sec 22, T 17N, R 14E, Crystal Forest Area, Petrified Forest, Apache County, Arizona.Horizon: Uppermost Blue Mesa Member, Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
UCMP 129821: Scute.
UCMP 129822: Scute.
Note: Possibly John Nuir’s original collections (UCMP 7037), which included phytosaur material, are from this area.
Locality: Crystal Forest S (MNA: 302:56-58), Crystal Forest Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
MNA: Partial upper Jaw.
Locality: Crystal Forest Butte (PF 173), Sonseal Sandstone level, purple-cream level, about 12 m below brown-grey cherty unionid bed, Crystal Forest Area, Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 129814: Appendicular scutes.
UCMP 129817: Appendicular scutes.
Locality: Long Logs (UCMP V82042, PF17), approximate level of Rainbow Sandstone, about 11 sto 12 m below Flattops Sandstone 1, Long Logs Area, Petrified Forest, Apache County, Arizona.
Horizon: Middle Painted Desert Member, Upper Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 126985, 126729. 126729, 126982, 126984, 126986: Squamsoals.
UCMP 34608: Entire mandibular symphyseal area.
Locality: Allentown Claypit (MNA), Allentown Area, Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
MNA Pl. 709: Femur, proximal extremity.
MNA Pl. 711: Huge femur, distal extremity.
Locality: Nazlini 1 (UCMP V3205), 11 km north of Nazili Trading post, Nazlini Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Mandibular smyphysis
Locality: Nazlini 2 (UCMP V3206), Nazlini Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 35740: Partial skull, including squamosal, occiptial condyle, snout, complete tibia and incomplete femur.
Locality: Lukachukai W (UCMP A270), Lukachukai Trading Post, 10 km west of Lukachukai, lower level, Lukachukai Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
Number: Not given: Partial snout with crest, right coracoid, distal extremity of left femur, and scutes.
Locality: Round Rock 5 (UCMP V6945), Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 85374: Left squamosal and other fragments of skull and scute.
UCMP 83476: Very large scutes.
Locality: Depot Tank SW, PEFO 085011 (UCMP 7036, MNA 302:103, PF107), approximately 1.6 km north of Lithodendron Wash Brecks, Depot Tank Area, Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 26691: Snout fragments.
UCMP 26692: Teeth and scute.
Locality: Depot Tank S, PEFO 085012 (UCMP A258, MNA 302:104, PF 108), approximately 2 to 5 km north of red breaks on northwest side of Lithodendron Wash, Depot Tank Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 27151: Poorly preserved skull.
Locality: Little Carrizo Wash , PEFO 085013 (UCMP A267, PF 109), approximately 5 to 6 km north of red breaks across Digger Wash about 3 km west of Lithodendron Wash, Depot Tank Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 27277: Fragments of phytosaur bones, poorly preserved, but abundant.
Locality: Saurian Valley, PEFO 085002 (UCMP V82251, PF97) (part of UCMP V7034), NW 1/4 of SE 1/4, Sec. 15, and NE 1/4 of SW 1/4, Sec. 15. T 19N, R 23E, Lithodendron Wash Area, 6 to 8 m below? Sonsela Sandstone, Devil’s Playground Area, Petrified Forest, Apache County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group..
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 27180: Fragmentary skull.
UCMP 27182: Large, broken skull.
UCMP 26684: Portions of a small skull.
UCMP 26683: Fragmentary large skull and dermal scutes.
UCMP 26719: Skull lacking rostrum.
UCMP 26996: Left squamosal.
PEFO 4858: Squamosals.
Locality: Giant Logs, PEFO 085081 (UCMP V82232, PF 177), in Rainbow Sandstone at Log Level, Petrified Forest, N1/2, SW ¼, SW ¼ to NW ¼, NW ¼, SW ¼, sec. 35, T17N, R23E, Apache County, Arizona.Horizon: Sonsela Member, Middle Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 129809: Numerous scutes.
Locality: Rincon Basin E (UCMP), 16 km northeast of Winslow on eastern margin of Rincon Basin, Winslow Area, Petrified Forest, Navajo County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP:
Locality: Ward’s Bonebed (UCMP V4121, V4150, V3309, V7317, etc), 5 km northeast to 10 km southeast of Cameron, Near Tanner's Crossing, Cameron Area, Petrified Forest, Coconino County, Arizona.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
AMNH 3000: Fragmentary small skull.
AMNH 3001: Various vertebrae, dermal plates and foot bones.
AMNH 3003: Much of skull.
Locality: Near Lamy, Santa Fe County, New Mexico.
Horizon: Los Esteros Member, Santa Rosa Formation.
Biostratigraphy:
Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
NMMNH: Left squamosal.
Locality: NMMNH L00374, San Ysidro, North-central New Mexico.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
Number: Not given:
Locality: Herring Ranch,/Rotten Hill Locality, Sierrita de la Cruz Creek, Potter County, Texas.
Horizon: Tecovas Member, Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
Note: The following specimens are referable to Leptosuchus and/or Smilosuchus.
PPHM WT 3099: Prenarial region of snout.
PPHM WT 2899: Lower jaw (Actual number of this specimen may be PPHM WT 2898)
PPHM WT 3092: Mandible fragments.
PPHM WT 3058.1: Mandibular fragments.
PPHM WT 3098: Vertebral centra ( one from huge individual).
PPHM WT3042: 11 vertebrae.
PPHM WT2930: 32 centra (some from huge individuals).
PPHM WT 2990: 2 articulated dorsal neural arches.
PPHM WT 3079: 7 clavicles.
PPHM WT 3059.1: Clavicle.
PPHM WT 3080: 6 clavicle fragments.
PPHM WT 2917: interclavicle.
PPHM WT3156: Proximal end of interclavicle.
PPHM WT 3226: Interclavicle.
PPHM WT2994: Proximal portion of coracoid.
PPHM WT 2901: Right coracoid (probably belong to same individual as 2092).
PPHM WT 2902: Right scapula.
PPHM WT 3091: Proximal end of left scapula.
PPHM WT 3102: Proximal portion of small scapula and coracoid.
PPHM WT 2925: Distal end of large right humerus.
PPHM WT 3103: Small right humerus.
PPHM WT 2928: Complete left humerus.
PPHM WT 3103: Proximal two-thirds of left humerus of small individual in two pieces.
PPHM WT 2914: Proximal end of ulna.
PPHM WT 2903: Right ulna.
PPHM WT 3153: Right pubes.
PPHM WT 2912: Right ischium.
PPHM WT 3081: Proximal end of small left femur, small complete right femur, middle portion of shaft of left femur of moderate-size individual, shaft of right femur form moderate-size individual.
PPHM WT 3238.1: Right femur of small individual.
PPHM WT 3229: Proximal portion of left femur of moderate-size individual.
PPHM WT 2914.1: Left femur lacking distal extremity.
PPHM WT 3165: Badly crushed right femur.
PPHM WT 3104: Distal ends of 2 femora from different size individual (one is pathological).
PPHM WT 3116: Tibia.
PPHM WT 2958: 24 dorsal scutes.
Locality: TMM Site 1 (TMM Locality 31172), Crosby County, Texas.
Horizon: Tecovas Member, Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
TMM 31172-19: Rostrum.
TMM 31172-13: Right ilium and pubis.
Locality: TMM Site 2 (TMM Locality 31173), Crosby County, Texas.
Horizon: Tecovas Member, Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:TMM 31173-48: Portion of rostrum.
TMM 31173-51: Tip of rostrum.
TMM 31173-93: 13 small presacral vertebrae.
TMM 31173-78: Dorsal vertebrae, rib fragments, scute and fibula.
TMM 31173-22: Series of presacral and sacral vertebrae lacking neural arches and spines.
TMM 31173-52: Interclavicle.
TMM 31173-39: Left scapula.
TMM 31173-88: Left scapulocoracoid.
TMM 31173-34: Right scapulocoracoid and left coracoid.
TMM 31173-75: Pair of ilia.
TMM 31173-6: Right ilium with pathological deformity.
TMM 31173-94: Partial skeleton including fragmentary skull, numerous vertebrae, right ilium and complete left femur.
TMM 31173-7: Nearly complete right ischium with almost entire posterior blade preserved.
TMM 31173-6: Nearly complete right ischium.
TMM 31173-137: Complete right femur of medium-sized individual.
TMM 31173-2: Proximal extremity of right femur.
TMM 31173-76: Poorly preserved right femur.
TMM 31173-13: Right femur and rib of large individual.
TMM 31173-86: Complete large left femur.
TMM 31173-78: Large left fibula.
Locality: Ned Elliot Ranch, Home Creek (TMM Locality 31097), Crosby County, Texas.Horizon: Tecovas Member, Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
TMM 31097-1: Proximal half of femur.
Locality: Espuela Ranch (TMM Locality 31097), Dickens County, Texas.Horizon: Tecovas Member, Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
TMM 1010-3: Braincase.
Locality: Near windmill in top pasture, approximately 5 km north of Dickens, Dickens County, Texas.Horizon: Tecovas Member, Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
ANSP 14688: Miscellaneous elements.
Note: Mixed with holotype of Desmatosuchus haplocerus.
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PARKER & IRIMIS, 2005
Locality: Gobstopper Hill Locality (PFV 263), Petrified Forest National Monument, Apache County, Arizona.
Horizon: Blue Mesa Member just below the base of the Sonsela Member, Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
PEFO 26695: A relatively complete skeleton lacking skull.
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POLCYN, WINKLER, JACOS & NEWMAN, 2002
Locality: SMU locality 251, vicinity of North Stinking Springs Mountian, what use to be Seven Springs Ranch, northwest of St. Johns, Apache County, Arizona.
Horizon: Lowe Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Late Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
SMU 74750: Nearly complete skull.