Dor el Talha Idam: Bartonian - Late/Upper Eocene, Libya

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Rhinopristiformes - Pristidae
Pristis sp. Linck 1790
Dipnomorpha - Lepidosirenidae
Protopterus sp. Agassiz 1843
Mammalia - Rodentia
Rodentia indet. Bowdich 1821
Mammalia - Creodonta
Creodonta indet. (Cope 1875)
Mammalia - Hyracoidea
Hyracoidea indet. Huxley 1869
Mammalia - Embrithopoda - Arsinoitheriidae
Arsinoitherium sp. Beadnell 1902
Mammalia - Proboscidea
Phiomia wintoni
Phiomia minor
Mammalia - Proboscidea - Moeritheriidae
Moeritherium trigodon (Andrews 1904)
original and current combination Moeritherium trigonodon
Mammalia - Proboscidea - Barytheriidae
Barytherium sp. Andrews 1901
Reptilia - Testudines - Pelomedusidae
Pelomedusidae indet. Cope 1868
Reptilia - Madtsoiidae
Gigantophis sp. Andrews 1901
Reptilia - Gavialidae
Crocodilia indet. Owen 1842
    = Gavialidae indet. Adams 1854
Agrasar 2004
BRSUG 22202: anterior portion of dentary symphysis including the first eight pairs of dentary alveoli. BRSUG 27379: fragment of a lower jaw including the posteriormost part of the symphysis and the anteriormost part of the divergent mandibular rami. BRSUG 27380: anterior part of a snout. BRSUG 27381: fragment of a left maxilla. BRSUG 27382: fragment of a right maxilla. BRSUG 27383: fragment of the posteriormost portion of the symphyseal part of a right dentary accompanied by the anteriormost portion of both splenials (medial to the last three preserved alveoli). BRSUG 27384: fragment of a right dentary. (Specimens BRSUG 27379 and BRSUG 27380 come from the same individual. The same is true for specimens BRSUG 27381, 27382, and 27383. Specimens BRSUG 27381 and 27382 come from the same part of the snout and their alveoli oppose the ones in the other side)
Reptilia
Tomistoma sp. Müller 1846
    = Tomistominae indet. Eastman 1902
Agrasar 2004
BRSUG 27385: anterior portion of a dentary symphysis. BRSUG 27386: fragment of a right dentary. BRSUG 27387: retroarticular process of a left lower jaw. BRSUG 27392: fragmentary skull with almost complete snout but lacking lower jaw. BRSUG 27393: fragmentary lower jaw (specimens BRSUG 27385, 27386 and 27387 very probably come from the same individual since they were found in association in the same place)
Mesosuchia indet. Huxley 1875
Agrasar 2004
invalid subgroup of Mesoeucrocodylia
BRSUG 27401, amphicoelous vertebra
Actinopteri - Centropomidae
Lates sp. Cuvier 1828
Actinopteri - Siluriformes - Bagridae
Fajumia sp. Stromer 1904
see common names

Geography
Country:Libya
Coordinates: 25.7° North, 18.2° East (view map)
Paleocoordinates:21.0° North, 14.1° East
Basis of coordinate:stated in text
Time
Period:Paleogene Epoch:Eocene
10 m.y. bin:Cenozoic 3
Key time interval:Bartonian - Late/Upper Eocene
Age range of interval:41.30000 - 33.90000 m.y. ago
Stratigraphy
Formation:Idam Unit
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:bioturbation siltstone
Secondary lithology:red or brown,white sandstone
Includes fossils?Y
Includes fossils?Y
Environment:marine indet.
Taphonomy
Modes of preservation:body,original phosphate
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Also known as:Dur at Talhah; Dor-El-Talha
Database number:55449
Authorizer:M. Uhen, P. Mannion Enterer:M. Uhen, P. Mannion
Modifier:P. Mannion Research group:vertebrate
Created:2005-10-25 12:00:21 Last modified:2017-08-29 06:00:10
Access level:the public Released:2005-10-25 12:00:21
Creative Commons license:CC BY
Reference information

Primary reference:

14946. A. W. R. Wight. 1980. Palaeogene vertebrate fauna and regressive sediments of Dur at Talhah, southern Sirt Basin, Libya. Symposium on the Geology of Libya 2:309-325 [M. Uhen/M. Uhen]

Secondary references:

46478 E. L. Agrasar. 2004. Crocodilian remains from the Upper Eocene of Dor-El-Talha, Libya. Annales de Paléontologie 90:209-222 [P. Mannion/P. Mannion]
56597 P. Coster, K. C. Beard, M. J. Salem, Y. Chaimanee, and J. J. Jaeger. 2015. New fossils from the Paleogene of central Libya illuminate the evolutionary history of endemic African anomaluroid rodents. Frontiers in Earth Science 3(56):1-15 [P. Coster/P. Coster/P. Mannion]
34161 J.-J. Jaeger, K. C. Beard, Y. Chaimanee, M. Salem, M. Benammi, O. Hlal, P. Coster, A. A. Bilal, P. Duringer, M. Schuster, X. Valentin, B. Marandat, L. Marivaux, E. Metais, O. Hammuda and M. Brunet. 2010. Late middle Eocene epoch of Libya yields earliest known radiation of African anthropoids. Nature 467:1095-1098 [K. Beard/K. Beard]
33889 J.-J. Jaeger, L. Marivaux, M. Salem, A. A. Bilal, M. Benammi, Y. Chaimanee, P. Duringer, B. Marandat, E. Metais, M. Schuster, X. Valentin and M. Brunet. 2010. New rodent assemblages from the Eocene Dur At-Talah escarpment (Sahara of central Libya): systematic, biochronological, and palaeobiogeographical implications. Zoological Journal of the Linnean Society 160:195-213 [K. Beard/K. Beard]