Genus: Calyptosuchus LONG & BALLEW, 1985
Etymology: Greek, kalyptos, "covered" and Greek, suchus, "crocodile."
= Caliptosuchus ASH, 1985 (sic)
= Calyptosuchuas LONG & BALLEW, 1985 (sic)
Species: wellesi LONG & BALLEW, 1985
Etymology: In honor of Dr. Samuel P. Welles, whose encouragemtn befefited this
study.
= Stagonolepis wellesi (LONG & BALLEW, 1985)
Holotype: UCMP 13950
Locality: Northeast of Rotten Hill, near the breaks of Cerita de la Cruz Creek, probably in easternmost Oldham County, Texas.
Horizon: Tecovas Member, Dockum Formation.
Biostratigraphy:
Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material: Mid-dorsal to mid-caudal armor with associated vertebrae, crushed pelvis.
Referred material:
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: Parts of 3 paramedian scutes.
UCMP 126953: 2 paramedian knobs and a single lateral cervical plate.
UCMP 126954: 1 paramedian fragment.
Locality: Findlay's Fourtune, (MNA Loc. 302-111), NE 1/4 of NE 1/4, Sec. 15, T 19N, R 23E, Lithodendron Wash 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. 3175: 6 fragment of paramedian scutes.
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 126944: 15 fragments of paramedian scutes.
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 126854: 2 fragments of paramedian scutes.
UCMP 126856: 1 lateral scute from tail.
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 126979: 1 fragment of a paramedian scute.
UCMP: Proximal knob.
Locality: Blue Mesa North 1, PEFO 085018 (UCMP V82233, PF115), near boundary line between NE 1/4 and SE 1/4, Sec. 23, 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:
UCMP 126897: Lateral scute of the caudal region.
Locality: Blue Mesa North 2, PEFO 085019 (UCMP V82236, PF116), on line between SE 1/4 and NE 1/4, Sec. 23 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:
UCMP 126899: 2 pieces of paramedian scute.
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 126497: Eminence of paramedian 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, PF122), 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: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 126875-126879, 126903: 12 fragments of paramedian scutes and 1 lateral scute.
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 126971: 2 fragments of a paramedian scute.
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:
UCMP 126975: A large paramedian knob.
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 126864, 126906: 3 lots of 14 fragments of paramedian and lateral scutes.
UCMP 126874: Left coracoid.
Locality: Agate Bridge Northeast, (UCMP Loc. V82242), NE 14 of NE 1/4 Sec. 3, T 17N, R 24 E, Agate Bridge 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 126938-126941: 2 lots consisting of about 140 fragments of paramedian scutes and 1 lateral scute.
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 126946: A lateral scute from the cervical region.
UCMP 126943: Paramedian plate fragment.
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 126900: 3 fragments of paramedian scutes.
Locality: Jasper Forest South, PEFO 085070 (UCMP V82041, MNA 302:42, SMU 232, PF167), on line between SE 1/4 and NE 1/4 of SE 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 126848m 126849, 125851, 126869, 126882-126884, 126886-126894, 126936: 17 lots of about 200 fragments of paramedian scutes an 4 lateral scutes.
Brake down is as follows as per LONG & MURRY, 1995
UCMP 126882: Paramedian plate fragment.
UCMP 126890: Paramedian plate fragment, anterior dorsal region.
UCMP 126848: Paramedian plate fragment and caudal plates.
UCMP 126888: Two knobs of paramedian plates.
UCMP 126892: Lateral plate of the cervical region.
UCMP 129804: Paramedian plate with knob.
UCMP 126883: Lateral plate of the dorsal region.
UCMP 126887: Paramedian plate fragment.
UCMP 12687: Lateral plate of the caudal region.
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 126865: paramedian plate and lateral plate of cervical region.
UCMP 126961: Knobs of paramedian plates.
UCMP 126962:
Locality: Long Logs, (UCMP Loc. V82024), Near Center of SE 1/4, Sec. 1. T 16N, R 23E, Long Logs Area, NE ¼, NE ¼, SE ¼, sec. 1, T16N, R23E, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 126853: Left paramedian plate fragment.
UCMP 125895: Fragment of paramedian plate.
UCMP 126896: Fragments of paramedian plates.
Locality: Revuelto Creek, Quay County, New Mexico.Horizon: Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
YPM 3695: Paramedian scute.
Locality: Vicinity of Cedar Mountain, Crosby County, Texas.Horizon: Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP 102347: A partial paramedian scute.
Locality: Near head of Home Creek/Swenson Ranch area, Crosby County, Texas.
Horizon: Tecovas Member, Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UMMP 7470: Partial skeleton with associated armor.
UCMP 11351: Scute.
FRASER, HECKERT, LUCAS & SCHNEIDER, 2006
Locality: Spoils of a minning operation, Deep River Basin, North Carolina.
Horizon: Pekin Formation.
Biostratigraphy:
Age: Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
Number: Not given: Caudal paramedian and acaudal lateral osteoderm.
HUNT & LUCAS, 1989Locality: Lamy Amphibian Quarry, SW 1/4, SW 1/4, NE 1/4, NE 1/4, Sec. 29, T 12N, R 11E, Santa Fe County, New Mexico.
Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
Number: Not given:
Locality: Rotten Hill/Sierrita de la Cruz Locality, 35°23' 06''N, 102°09'40''W, badlands along Sierrita de la Cruz creek, Ady 7.5' Quadrangle, Potter County, Texas.
Horizon: Tecovas Member, Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
Number: Not given:
Locality: Mesa del Oro, Cibola County, Central New Mexico.Horizon: Lower Petrified Forest Formation.
Biostratigraphy:
Age: Adamanian, Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
Number: Not given: Dermal scutes.
HUNT & LUCAS, 1995
Locality: Canada Colorado, NMMNH locality 149, NW 1/4, SW 1/4, NW 1/4, SE 1/4, Sec. 2, T14N, R10E, 4 km east of 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:
Number: Not given: Paramedian and lateral scutes.
HECKERT & LUCAS, 2002Locality: Hoyadade Ischigualsto, Department of Valle Fertil, San Juan Province, Argentina.
Horizon: Ischigualsto Formation.
Biostratigraphy:
Age: Late Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
PVL 2052: Fragmentary skull and fragmentary skeleton.
LESSNER, PARKER, MARSH, NESBITT, IRMIS & MUELLER, 2018
Locality: Miller Quarry (Post Quarry MOTT VPL 3624, TUPP, DMNH Locality 1160), 2 km due south of Cooper Creek on the R. C. Miller's Ranch, 8 km southeast of Post, Lat. 33°31’17”N, Long. 101°18’54"W, 9 miles southeast of Post Garza County, West Texas.
Horizon: Cooper Canyon Member, Dockum Formation.
Biostratigraphy:
Age: Early Norian Epoch, Middle Late Triassic Epoch, Late Triassic.
Material:
TTU-P 09420:
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:
UCMP 27414: Posterior portion of skull.
UCMP 27409: Posterior portion of skull.
UCMP 2742: Basicranium.
UCMP27416: Basicranium.
UCMP 27431: Occipital condyle.
UCMP 33205: Left parietal.
UCMP 34468: Left frontal.
UCMP 27470, 27469, 27474: Right quadrates.
UCMP 27475: Left quadrate.
UCMP 28342: Right articular/surangular.
UCMP 27970: Right scapulocoracid.
UCMP78698: Left scapulocoracoid, probably same individual as UCMP 25979.
UCMP 32201: Right scapulaocoracoid, probably same individual as UCMP 25943.
UCMP 32210: Right scapulocoracoid.
UCMP 27956: Left scapula.
UCMP 27980: Well-preserved left scapula, same individual as UCMP 27976.
UCMP 32191: Left scapula, same individual as UCMP 27975.
UCMP 32154: Left scapula.
UCMP 32422: Well-preserved left ilia.
UCMP 37975: Left coracoid.
UCMP 27976: Left coracoid.
UCMP 32196: Left coracoid.
UCMP 25979: Left ilium.
UCMP 25941: Badly crushed right ilium, probably same individual as UCMP 32422.
UCMP 32422: Well-preserved left ilium.
UCMP 27611: Acetabular region of left ilium.
UCMP 25936: Anterior blade of left ilium, part of same ilium as UCMP 25067.
UCMP 25067: Posterior blade of left ilium, probably part of same ilium as UCMP 25936.
UCMP 250565: Posterior blade of right ilium.
UCMP 27402: Middle portion of right pubis.
UCMP 32144: Left pubis.
UCMP 32143: Crushed but nearly complete left pubis.
UCMP 26000: Proximal portion of shaft of right pubis.
UCMP 25966: Left pubis.
UCMP 32150: Left pubis, probably same individual as UCMP 32150.
UCMP 25970: Right pubes.
UCMP 32151: Right pubes.
UCMP 32164: Left pubis.
UCMP 25982: Right ischium.
UCMP 32148: Well-preserved left ischium, probably same individual as UCMP 32422.
UCMP 25957: Left ischium.
UCMP 32156: Right ischium.
UCMP 25948: Left ischium, same individual as UCMP 25979.
UCMP 32163: Right ischium.
UCMP 27983: Right ischium, may belong to same individual as UCMP 32148.
UCMP 25918: Well preserved left femur.
UCMP 25912: Left femur.
UCMP 25914: Left femur missing distal extremity.
UCMP 25931: Distal extremity of left femur.
UCMP 25862: Proximal extremity of left femur, probably same individual as UCMP 25931.
UCMP 25925: Distal extremity of left femur.
UCMP 25984: Nearly complete left tibia, with some shaft reconstruction.
UCMP 25887: Well-preserved left tibia.
UCMP 27970: Distal extremity of left tibia.
UCMP 25897: Distal extremity of left tibia.
UCMP 25896: Proximal extremity of left tibia, same individual as UCMP 25897.
UCMP 25876: Proximal extremity of right tibia.
UCMP 25869: Proximal extremity of left fibula.
UCMP 25802: Proximal extremity of left fibula, amen individual as UCMP 25887 and UCMP 25914.
UCMP 34481: Left calcaneum, probably same individual as UCMP 25918.
UCMP 34479: Right calcaneum.
UCMP 34485: Left atragalus, probably same individual as UCMP 34481.
Numerous uncatalogued paramedian and lateral plates are also found within the UCMP collection.
MNA Pl. 2775, 2803, 2879, 2881, 2882, 2919, 2976, 3030: Paramedian plates.
MNA Pl. 2930: Post-dorsal left paramedian plate.
MNA Pl. 2902: Paramedian plate in 2 pieces.
MNA Pl. 2970: paramedian plate in 3 pieces.MNA Pl. 2776, V3741: Lateral plates.
MNA Pl. 2935: Post dorsal lateral plate.
MNA Pl. 2776, MNA V3741: Lateral plates.
MNA Pl. 2935: Post dorsal lateral plate.
?MNA V3096: Lateral plate.
?MNA Pl. 3017, ?3019: Cervical lateral plates.
MNA Pl. 2716: Lateral plate form anterior dorsal region and other plates, also a ?Desmatosuchus neural spine and paramedian plate.
MNA Pl. 3000: Lateral plate.
MNA Pl. 2898: Lateral caudal plate.
MNA Pl. 2804: Plate.
MNA Pl. 2887, 2939: Ventral plates.
MNA Pl. 2862: Left articular and surangular.
MNA Pl. 2985: Dorsal centrum.
MNA Pl. 2942: Dorsal vertebra.
MNA V3729: Left astragalus.
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. 2665, 2729, 3090, 3092, 3094: paramedian plates.
MNA Pl. 3091: Plate, rib and neural arch.
MNA Pl. 2676, V3744: Lateral plates.
MNA Pl. 2666, 2667, 2688: Caudal plates.
MNA Pl. 3117: Axis-atlas.
MNA Pl. 3129: Cervical vertebra.
MNA Pl. 2744: Posterior dorsal vertebra.
?MNA Pl.3100: Right ulna.
MNA Pl. 3101: Left calcaneium.
Locality: Big Hollow Wash, (UCMP V80003), St. Johns area, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UCMP: Fragments of armor, vertebrae and a coracoid.
Locality: Big Hollow Wash N (USNM), 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 18313: Paramedian scutes and partial ilium found with a Leptosuchus skeleton.
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 27225: Much of a carapace.
UCMP 27158: 2 plates.
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: Paramedian scutes.
Locality: PEFO 085027 (UCMP V85236, MNA 302:116, SMU 230, PF124), Crocodile Hill (part of V7038), 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: Fragments of paramedian scute with knob.
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 12671: Fragment of paramedian scute.
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: Paramedian scute fragments, lateral plate from cervical region.
Locality: Paulcell 4 (PF 150), 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: Lateral plate of the cervical region.
Locality: Paulcell 6 (PF 145), 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: Lateral plate of the cervical region.
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 126938, 126943: Paramedian plate fragment.
MNA Pl. 1773: Caudal centrum.
Locality: St. Michaels S (UA, MNA 227), MNA is approximately 2.8 km south and 5.2 km west of St. Michaels, UA is approximately 3 km south of St. Michaels, St. Michaels Area, Petrified Forest, Apache County, Arizona.Horizon: Lower Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Latest Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UA 2092: Paramedian plate fragment.
Locality: Fossil Garden, PEFO 085003 (UCMP V82252, PF98) (part of UCMP V7034), 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 129999: Paramedian plate fragment.
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:
UCMP: Lateral plate.
Locality: Ward’s Bonebed, USNM (Without number; BB 5/19/01), (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:
Several hundred pounds of material including numerous scutes and vertebrae.
UCMP: Many plate fragments.
UCMP (RAL 81-5B): Numerous plate fragments.
AMNH 3004: A number of paramedian plates, some complete, found with a Leptosuchus specimen.
Locality: Canada Colorado, NMMNH locality 149, NW 1/4, SW 1/4, NW 1/4, SE 1/4, Sec. 2, T14N, R10E, 4 km east of Lamy, Santa Fe County, New Mexico.Horizon: Santa Rosa Formation.
Biostratigraphy:
Age: Late middle or early late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
Number: Not given:
Locality: East side of White River, Crosby County, Texas.
Horizon: Tecovas Member, Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UMMP 7335: Left coracoid.
Locality: Red Tank/Walker’s Tank, Crosby County, Texas.Horizon: Tecovas Member, Dockum Formation.
Biostratigraphy:Age: Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
UMMP 10188: Paramedian plate.
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 31173-46: Mid-caudal vertebrae (Smaller vertebra with this number is not Stegonolepis).
Locality: Rotten Hill Bonebed (PPHM WT), Herring Ranch Locality, Rotten Hill, Potter County, Texas.Horizon: Lower part of the Tecovas Formation, Chinle Group (or Tecovas Member, Dockum Formation).
Biostratigraphy:Age: Adamanian age, Late Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
PPHM WT 3034: 22 specimens of fragmentary armor plates including 6 lateral plates (4 nearly complete), 16 specimens of paramedian plates (Including 2 overlapping and nearly complete, all plates probably from a single individual.
PPHM WT 3036.2: Lateral plate.
MUELLER, HUTTENLOCKER, SMALL, PINTO, DEAN-WALLACE & CHATTERJEE, 2022
Locality: Boren Quarry (MOTT VPL 3869), Garza County, Texas.
Horizon: Tecovas Formation, Dockum Group.
Biostratigraphy: Otischalkian LVF.
Age: Early Norian Stage, Middle Late Triassic Epoch, Middle Late Triassic.
Material:
Number: Not given:
POLCYN, WINKLER, JACOS & NEWMAN, 2002Locality: SMU locality 252, 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:
Number: Not given: