Geology Reference
In-Depth Information
many others in the world, are valuable for geoscience pop-
ularization and promotion of Earth Science education
(Santos 2008 ).
5
Conclusion
About 10 dinosaur track sites are known in Algeria. Among
them is the Amoura site in Djebel Bou Kahil, eastern Sah-
aran Atlas, which is one of the oldest known scienti
c ref-
erences to dinosaur tracks in the world. Numerous sites have
been identi
ed in recent years in the El Bayadh area
(Western Saharan Atlas); these contain theropod as well as
sauropod footprints and trackways. Some of them are
exceptionally large and are very well preserved. These sites
are mostly abandoned and no serious action has yet been
taken to protect and conserve them. Some of these sites are
in an advanced state of decay. Geoconservation measures
should include: (i) the protection of these sites through the
establishment of geological protected areas; (ii) providing
facilities for scienti
Fig. 18 Amoura track site. At right, a limestone slab containing
footprints have been removed
belts to the north. The contrast between the two domains can
be easily observed from this location. Amoura is also a site
of historical cultural heritage, with its old ksars (forti
c, educational, cultural and touristic
purposes; and (iii) the creation of geoparks, notably, in the
region of El Bayadh.
ed
villages), gardens, old sundial and the presence of an
archaeological site near the village. Given its scienti
c,
educational and cultural signi
cance, it is urgent that the
Amoura site be declared a protected area and a geological
heritage site.
The dinosaur track site of Tiout is less well known and
the presence of dinosaur footprints at this site is hard to
locate by non-experts given the small number of these tracks
and their small size. The location of these footprints on a
vertically uplifted limestone slab protects them from climate
hazards. However, the site remains unknown to the author-
ities and the lack of reporting of its presence could lead to its
destruction, e.g. from limestone mining. Consequently, it is
extremely important and necessary to report the presence of
the site in the very near future and to classify it as a protected
natural site.
In Djurdjura, slabs containing dinosaur footprints have
been removed and are now in the Geological Museum of the
Polish Geological Institute (Poland). No study has been
undertaken since the discovery of this site; therefore, a new
References
Bassoullet JP (1971) D
é
couverte d
'
empreintes de pas de Reptiles dans
l
'
Infralias de la r
é
gion d
'
Ain-Sefra (Atlas
saharien-Alg
é
rie).
Compte Rendu sommaire des s
é
ances de la Soci
é
t
é
G
é
ologique
359
Bellair P, de Lapparent AF (1948) Le Cr é tac é et les empreintes de pas
de Dinosauriens d ' Amoura (Alg é rie). Bul de la Soci é t é d ' Histoire
Nat de l ' Afrique du Nord 32:168 - 175
Bensalah M, Adaci M, Hebib H, Bessedik M, Belkebir L, Mahboubi M,
Mansouri MEH, Mammeri C, Mansour B (2005) Pr é sence d ' em-
preintes de pas de dinosauriens dans le Cr é tac é au Nord d ' El-
Bayadh (Djebel Amour, Alg é rie). Sci Technol B 23:107 - 109
Bessedik M, Mammeri C, Belkebir L, Mahboubi M, Adaci M, Hebib
H, Bensalah M, Mansour B, Mansouri MEH (2008) Nouvelles
donn é es sur les ichnites de dinosaures de la r é gion d ' El Bayadh
(Cr é tac é inf é rieur, Alg é rie). Palaeovertebrata 36(1 - 4):7 - 35
Brusatte SL, Nied ź wiedzki G, Butler RJ (2011) Footprints pull origin
and diversi cation of dinosaur stem-lineage deep into Early
Triassic. Proc R Soc Lond B 278:1107 - 1113
Cornet A (1952) L ' Atlas saharien sud-oranais. 19 è me Congr. G é ol.
Intern. Alger, Monographie r é gionale, 1 è re s é rie 12:51
Durand-Delga M (1969) Mise au point sur la structure du Nord-Est de
la Berb
de France 7:358
-
eld investigation should be carried out in order to
nd any
new tracks within the lithological level where the
rst dis-
coveries were made. Further, given the rarity of these
dinosaur footprints attributed to Rotodactylus which is
among early members of the dinosaur stem lineage (Brusatte
et al. 2011 ), this exceptional site deserves more attention.
The protection of these tracks sites and their transfor-
mation into outdoor geological and palaeontological muse-
ums (geosites) is crucial in the development of local tourism
and can contribute to the improvement of the local economy
of these regions. In addition, some of these sites, such as
131
Emberger J (1960) Esquisse g é ologique de la partie orientale des monts
des Ouled Nail (Atlas saharien, Alg é rie). Bul du Service de la Carte
G
é
rie. Publ du Service G
é
ol de l
'
Alg
é
rie 39:89
-
rie 27:363
Flandrin J (1952) La cha
é
ol de l
'
Alg
é
ne du Djurdjura. XIX è me Congres G
î
é
ologique
49
Gaudry A (1890) Les Enchainements du Monde Animal dans les temps
g
International. Monographies r
é
gionales. 1re S
é
rie: Alg
é
rie 19:1
-
ologiques. Fossiles secondaires. Masson, Paris, p 523
Herkat M (2009) Geodynamic Evolution of the North African Atlastic
Belt. In: David MF, Antonio RG (eds) Geomorphology and plate
tectonics. Nova Science Publishers, New York, pp 311
é
-
382
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