Hamada du Guir (Cretaceous to of Morocco)

Where: Morocco (30.9° N, 4.0° W: paleocoordinates 17.5° N, 3.8° W)

• coordinate based on political unit

When: Tegana? Formation, Late/Upper Albian to Late/Upper Albian (105.3 - 93.5 Ma)

• No formation name is given. "specimen..collected from the basement of the Hamada du Guir...mapped as...Infra-Cenomanian because it is overlain by Cenomano-Turonian marine limestones."

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; red siliciclastic sediments

• "The vertebrate-bearing red beds from which the specimen described here was collected from the basement of the Hamada du Guir, a vast stony plateau in southern Morocco, close to the Algerian border."

•"Stratum typicum: red beds of late Albian to early Cenomanian Age."

Size class: macrofossils

Collected by Alberti in 1971

• Only Hamadasuchus n.g. rebouli n.sp. is described in reference # 6005; the fishes, crocodilians, and dinosaurs are described in Buffetaut 1976a and Buffetaut 1989a.

Primary reference: E. Buffetaut. 1989. New remains of the enigmatic dinosaur Spinosaurus from the Cretaceous of Morocco and the affinities between Spinosaurus and Baryonyx. Neues Jahrbuch für Geologie und Paläontologie Monatshefte 1989(2):79-87 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13274: authorized by John Alroy, entered by Robin Whatley on 12.02.2002, edited by John Alroy, Matthew Carrano and Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• "The fauna...is reminiscent of that from Baharija in Egypt"
Coelacanthimorpha
 Coelacanthiformes - Coelacanthidae
Mawsonia lavocati Tabaste 1963 coelacanth
Reptilia
 Testudines -
Hamadachelys escuilliei3 Tong and Buffetaut 1996 sideneck turtle
 Testudines - Euraxemydidae
Dirqadim schaefferi n. gen. n. sp.3
Dirqadim schaefferi n. gen. n. sp.3 Gaffney et al. 2006 sideneck turtle
Holotype MDEt 41 (skull), and AMNH 30038 (partial skull)
 Avetheropoda - Carcharodontosauridae
Carcharodontosaurus sp. Stromer 1931 allosauroid
"probably"
 Saurischia - Spinosauridae
"Baryonychidae indet." = Baryonychinae2
"Baryonychidae indet." = Baryonychinae2 Charig and Milner 1986 tetanuran
 Loricata - Trematochampsidae
Trematochampsidae indet. Buffetaut 1974 crocodilian
"probable"
 Loricata - Peirosauridae
Hamadasuchus rebouli n. gen. n. sp.1
Hamadasuchus rebouli n. gen. n. sp.1 Buffetaut 1994 crocodilian