Aganane

Description

Source: Wikipédia

The Aganane Formation is a Pliensbachian (Early Jurassic), with some levels being potentially Latest Sinemurian, geologic formation in the Khenifra, Midelt, Azilal, Béni-Mellal, Ouarzazate, Tinerhir and Errachidia areas, in the Middle and High Atlas of Morocco, being the remnant of a local massive Carbonate platform, and known mostly for its rich tracksites (up to 1350 tracks in 1988) including footprints of dinosaurs. Is (in part) coeval with the Calcaires du Bou Dahar. This unit is know by other multiple synonymous names such as Aït Chitachen, Aït Bazzi, Aghbalou or Assemsouk Formation in the High Atlas and Calcaires de Tizi Nehassa in the Middle Atlas.
This formation has been dated to the Pliensbachian stage of the Lower Jurassic, thanks to the find of the ammonite Arieticeras cf. algovianum, indicator of Middle Domerian (=Uppermost Pliensbachian) in the upper zone, and lower delimitation by the foraminifers Mayncina termieri and Orbitopsella praecursor (indicators of Lower Pliensbachian age).
The Aganane Formation starts at the W sequences referred to either the synonyms "Aït Chitachen/Aït Bazzi" Formations at sectors such as Demnate or Telouet (continental-fluvial, coastal lagoon) and Azilal area. At Tazoult, part of the Azilal profile contacts the bottom with the karst Talmest-Tazoult Formation, then a section where the Aganane itself indicates an eastward expansion of the carbonate facies, finally, a westward advance of the Imilchil pelagic facies, mostly part of the Jbel Choucht Formation or Ouchbis Formation.

Découvertes

Source: The Paleobiology Database

Site(s) correspondant(s) à cette formation: 23

• Aït Blal piste, Demnate tracksite : Azilal - ? ^{30599 60844}
1.5 km E of Ait Blal, on the Ait Ioudridenes territory, near Demnate, Lakhdar Basin. Coordinates (prob. Lambert) goven as 376,9/122,0/1580 m. On a slab disengaged by workers extending the piste toward the E.
• Coelurosauria
• Assif-n-Stremt tracksite : Azilal - ? ³⁰⁵⁹⁹
along Assif-n-Stremt, 200 m from the junction with Aqqa-n-Tighboula. Coordinates (prob. Lambert) given as 395,7/125,7/1590 m.
• Dinosauria
• Iba'ziz tracksite : Azilal - ? ³⁰⁵⁹⁹
Iba'ziz, along edge of Oued Lakhdar, at the beginning of the path from Tizi-n-Gadow. Coordinates (prob. Lambert) given as 384,0/124,5/1270 m.
• Dinosauria
• Tigharguenine tracksite : Azilal - ? ³⁰⁵⁹⁹
Tigharguenine , near Bernat, at 4 km on the Azilal-Marrakech road. Coordinates (prob. Lambert) given as 383,2/145,0/1360 m.
• Dinosauria
• Timit tracksite : Azilal - ? ^{30599 70614}
Timit, under the Marabout of Sidi Moussa, near the automobiile piste, in the Aït Bou Guemez Valley
• Sauropoda
• Tabant tracksite : Azilal - ? ^{30599 70614}
A little before arriving at Tabant, 50 m above the automobiile piste, in the Aït Bou Guemez Valley. Coordinates (prob. Lambert) given as 402,5/118,9/1950 m.
• Sauropoda
• Dinosauria
• Theropoda
• Ibaqalliwn 1 tracksite : Azilal - ? ^{30599 70614}
environs of Ibaqalliwn village, in Aït Bou Guemez Valley. Coordinates (prob. Lambert) given as 406,0/118,6/1900 m. Several sites suggested; one surface used as a "threshing floor"
• Dinosauria
• Sauropoda
• Jbel Azourki tracksite : Azilal - ? ³⁰⁵⁹⁹
W of Jbel Azourki, exposed by a rockfall. Coordinates given as (prob. Lambert) 413,4/126,8/2350 m.
• Dinosauria
• Tizi-n-Aït tracksite : Azilal - ? ³⁰⁵⁹⁹
E of Tizi-n-Aït, S of Jbel Waougoulzat. Coordinates (prob. Lambert) given as 409,3/114,1/2750 m.
• Dinosauria
• Carnosauria
• Ibaqalliwn 2 tracksite : Azilal - ? ⁷⁰⁶¹⁴
environs of Ibaqalliwn village, in Aït Bou Guemez Valley.
• Sauropoda
• Ibaqalliwn 3 tracksite : Azilal - ? ⁷⁰⁶¹⁴
environs of Ibaqalliwn village, in Aït Bou Guemez Valley.
• Sauropoda
• Ibaqalliwn 4 tracksite : Azilal - ? ⁷⁰⁶¹⁴
environs of Ibaqalliwn village, in Aït Bou Guemez Valley.
• Sauropoda
• An tracksite : Azilal - ? ⁷⁰⁶¹⁴
An, just W of town of Aguerd
• Sauropoda
• Ibaqalliwn tracksite (1IBQ) : Azilal - ? ⁷⁰⁶¹⁴
environs of Ibaqalliwn village, in Aït Bou Guemez Valley.
• Dinosauria
• Ibaqalliwn tracksite (2IBQ) : Azilal - ? ⁷⁰⁶¹⁴
environs of Ibaqalliwn village, in Aït Bou Guemez Valley. Alongside road from Ibaqalliwn to Rbat.
• Sauropoda
• Ibaqalliwn tracksite (3IBQ) : Azilal - ? ⁷⁰⁶¹⁴
environs of Ibaqalliwn village, in Aït Bou Guemez Valley. Alongside road from Ibaqalliwn to Rbat.
• Sauropoda
• Ibaqalliwn tracksite (4IBQ) : Azilal - ? ⁷⁰⁶¹⁴
environs of Ibaqalliwn village, in Aït Bou Guemez Valley. Alongside road from Ibaqalliwn to Rbat.
• Sauropoda
• Ibaqalliwn tracksite (5IBQ) : Azilal - ? ⁷⁰⁶¹⁴
environs of Ibaqalliwn village, in Aït Bou Guemez Valley. Alongside road from Ibaqalliwn to Rbat.
• Sauropoda
• Akourbi tracksite : Azilal - ? ⁷⁰⁶¹⁴
N of houses of Akourbi village, in Aït Bou Guemez Valley
• Theropoda
• Ansous tracksite, 1ANS : Azilal - ? ⁷⁰⁶¹⁷
near Ansous. UTM 744369 / 3509422
• Theropoda
• Ansous tracksite, 2ANS : Azilal - ? ⁷⁰⁶¹⁷
near Ansous. UTM 744413 / 3509481
• Thyreophora
• Ansous tracksite, 3ANS : Azilal - ? ⁷⁰⁶¹⁷
near Ansous. UTM 744722 / 3510222
• Theropoda
• Ansous tracksite, 4ANS : Azilal - ? ⁷⁰⁶¹⁷
near Ansous. UTM 7447693 / 3510222
• Sauropoda
• Theropoda