Genus: Protosuchus BROWN, 1934
Etymology: Greek, proto, "first" and Greek, souchos, "crocodile." First crocodile.
= Archaeosuchus BROWN, 1933 non BROOM, 1905 (Archaeosuchus cairncrossi, Theraspida, Deuterosauroidea, incertae sedis)
Etymology: Greek, archae, "ancient, " and Greek, souchos, "crocodile": Ancient crocodile.
= Baroqueosuchus BUSBEY & GOW, 1984
Etymology: The name emphasises the ornate achitecture of the braincase and quadrate, reminiscent of the baroque period in art and architecture, and Greek, souchos, "crocodile".
= Lesotosuchus WHETSTONE & WHYBROW, 1983
Etymology: Greek, leptos, "thin, small" and Greek, Greek, souchos, "crocodile": Small crocodile.

Species: richardsoni (BROWN, 1933) BROWN, 1934
Etymology: In honor of Navajo Indian northeast of Cameron, Arizona Mr. Hubert Richardson, proprietor of the famous trading post at Cameron.
= Archaeosuchus richardsoni BROWN, 1933

Holotype: AMNH 3024

Locality: About 1 mile to the east of Dinosaur canyon, some 5 or 6 miles up the canyon from the point of its opening into the Little Colorado valley,
15 miles northeast of Cameron, Coconino County, Arizona.

Horizon: Dinosaur Canyon Beds.

Biostratigraphy:

Age: Exact stage unknown, Lias Epoch, Early Jurassic.

Material: Skull and skeleton.

Referred material:

AMNH 3025: Left coracoid and portion of a right coracoid, left humerus, left scapula, part of a tibia? part of a left dentary? vertebrae, scutes and miscellaneous fragments.

AMNH 3026: Right radius and ulna and fragments of manus, ribs, scutes, distal portion of tibia, astragalus and calcaneum, fibula? and various fragments not identified.

AMNH 3027: Portion of the anterior region of a crushed skull.

AMNH 3028: 5 fragments of limb bones, femora and tibiae.

AMNH 3056: Part of pelvis, including both pubes and portions of ischia, proximal portion of left femur and complete right femur, a series of 7 or more posterior presacral vertebrae.

AMNH 3057: A few associated skeletal bones.

UCMP 36717: A partial skeleton, including a left manus, left radius, left femur, tibia, fibula, and pes, a series of 14 or more presacral vertebrae with ribs and scutes.

 

CROMPTON & SMITH, 1980

Locality: 79/2A, Tonahakaad Wash, 35'47" Latitude, 111'07" Longititude, 15 miles southeast of Cameron, Coconino County, Arizona.

Horizon: Dinosaur Canyon Member, Moenave Formation.

Biostratigraphy:

Age: Hettangian-Early Pliensbachian Stage, Lias Epoch, Early Jurassic.

Material:

MCZ 6727; NMA Pl. 2461: Skull, lacking table top and dentaries.

 

CLARK & FASTOVSKY, 1986

Locality: UCMP locality V84245, Tonahakaad Wash, Coconino County, Arizona.

Horizon: Moenave Formation.

Biostratigraphy:

Age: Hettangian-Early Pliensbachian Stage, Lias Epoch, Early Jurassic.

Material:

V84246/130860:

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Species: haughtoni (BUSHEY & GOW, 1984) GOW, 2000
Etymology: The new species is named in honour of Dr. S.H. Haughton (1888-1982), doyen of South African geology, whose work on the Red Beds published in
1924 set the scene for many important subsequent discoveries.
= Baroqueosuchus haughtoni BUSHEY & GOW, 1984

Holotype: BP-1-4746

Locality: Farm Sunnyside, near Clarens, Free (Orange Free) State, South Africa.

Horizon: Upper Elliot Formation.

Biostratigraphy:

Age: Hettangian-Lower Sinemurian Stage, Lower Lias Epoch, Early Jurassic.

Material: Partial braincase.

Paratype: BP-1-4946

Locality: Farm Damplaats near Ladybrand, Free (Orange Free) State, South Africa.

Horizon: Upper Elliot Formation.

Biostratigraphy:

Age: Hettangian-Lower Sinemurian Stage, Lower Lias Epoch, Early Jurassic.

Material: Partial braincase with disarticulated squamosals.

Referred material:

GOW, 2000

Locality: Groot Verwulf District Fouriesburg, eastern Free (Orange Free) State, South Africa.

Horizon: Upper Elliot Formation, Stormberg Series.

Biostratigraphy:

Age: Hettangian-Lower Sinemurian Stage, Lower Lias Epoch, Early Jurassic.

Material:

BP/1/4770: Nearly complete skull and dentary.

 

= Protosuchia incertae sedis GOW & KITCHING, 1988

Locality: Farm Bosheok, district Bethlehem, Eastern Free (Orange Free) State, South Africa.

Horizon: Upper Elliot Formation, Stormberg Series.

Biostratigraphy: Tritylodon acme zone.

Age: Hettangian-Lower Sinemurian Stage, Lower Lias Epoch, Early Jurassic.

Material:

BP/1/5290: Fragmentary skull.

 

= Lesotosuchus charigi WHETSTONE & WHYBROW, 1983
Etymology: In honor of Alan J. Charig who has attributed much to our knowledge of early archosaurs.

Holotype: NHMUK (old BMNH) R8503

Locality: Lithipeng South, Mohales Hoek District, from northwest face of vertical slop at Longitude 20'44" and Latitude 30'19"S., Lesotho, Southern Africa.

Horizon: Red Beds of Stormberg Series, just below Cave Sandstone.

Biostratigraphy:

Age: Lias Epoch, Early Jurassic.

Material: Left otic and temporal region of skull, left dentary, 1 cervical, 2 dorsal, 2 caudal vertebrae, a caudal chevron, some rib fragments, dorsal end of the right scapula, right coracoid, right and left humeri, a left ulna, most of left femur, distal end of right femur, a right fibula, right and left metatarsals of the second digit, 2 phalanges from the pes and several osteoderms.

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Species: micmac SUES, SHUBIN, OLSEN & AMARAL, 1996
Etymology: Named in honor of the Micmac Indians of Nova Scotia and adjoining regions of eastern North America.

Holotype: NSM 988GF7

Locality: In the eastern micro basin and the banks of a creek draining onto the beach about 50 m east of site M in the western micro basin, Wasson Bluff, near Parrsboro, lat. 45°23’40”N, long. 64°14’00” to 30”W, Cumberland County, Nova Scotia, Canada.

Horizon: McCoy Brook Formation, Fundy Group, Newark Supergroup.

Biostratigraphy:

Age: Hettangian Stage, Lowermost Lias Epoch, Early Jurassic.

Material: Right dentary with one caniniform tooth and two postcaniniform teeth preserved.

Hypodigm

MCZ 9116, NSM 988GF5.1, 988GF8.1, 988F9.1: Dentaries.

NSM 988GF31.1: Right premaxilla.

MCZ 9117: Left maxilla.

NSM 988GF27.1: Right jugal.

MCZ 9121: Left pterygoid.

MCZ 9115: Incomplete braincase.

SUES, & OLSEN, 2016

FGM999GF64: Incomplete skull.

Protosuchus micmac (modified from Sues & Olsen, 2015).

FEDAK, 2007 (Origianlly referred to Sauropodomorpha)

Locality: Sites F, Wasson Bluff, near Parrsboro, Cumberland County, Nova Scotia Province, Canada.

Horizon: McCoy Brook Formation, Fundy Group, Newark Supergroup.

Biostratigraphy:

Age: Hettangian Stage, Lowermost Lias Epoch, Early Jurassic.

Material:

FGMOO1GF18: Articulated pelvic girdle and hind limb.