Minqar Tibaghbagh (Eocene of Egypt)

Also known as Qattara Depression, Minqar Tabaghbagh

Where: Egypt (29.2° N, 27.4° E: paleocoordinates 24.6° N, 23.5° E)

• coordinate stated in text

When: Daba'a Formation, Priabonian (38.0 - 33.9 Ma)

• early Priabonian

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal; poorly lithified, fine-grained, gray sandstone

• El Beialy et al. (2019) investigated the Dabaa Formation in the southern Qattara Depression and argued that the palynological assemblages reflect fluctuating conditions on the southern margin of the Tethys/Paratethys Ocean, with the frequent co-occurrence of Homotryblium floripes, Pediastrum and Botryococcus reflecting restricted and probably lagoonal marine environments influenced by seasonal river inflow.
• Dinoflagellates studied by El Beialy et al. (2019) were extracted by standard methods, suggesting poorly lithified lithology.

Size class: macrofossils

Preservation: original phosphate

Primary reference: H. J. van Vliet and G. A. el Khair. 2010. A new Eocene marine mammal site in the Qattara depression (Egypt). Cainozoic Research 7(1-2):73-77 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 96952: authorized by Mark Uhen, entered by Mark Uhen on 14.07.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia indet. Linnaeus 1758 clam
 Nautilida - Aturiidae
Aturia sp. Bronn 1838 nautiloid
Chondrichthyes indet. Huxley 1880 cartilaginous fish
 Odontaspidida - Lamiostomatidae
Xiphodolamia serrata1 Adnet et al. 2009 elasmobranch
 Odontaspidida - Alopiidae
Alopias alabamensis1 thresher shark
Alopias sp.1 Rafinesque 1810 thresher shark
 Plagiostomi - Squalidae
Otodus cf. sokolowi1 dogfish shark
 Myliobatiformes - Myliobatidae
Myliobatis sp.1 Cuvier 1816 eagle ray
 Pristiformes - Pristidae
Pristis sp. Linck 1790 sawfish
Pristis lathami1 Galeotti 1837 sawfish
Propristis schweinfurthi1 Priem 1897 sawfish
Anoxypristis sp.1 White and Moy-Thomas 1941 sawfish
 Lamniformes - Lamnidae
Isurus praecursor, "Carcharocles auriculatus" = Carcharodon auriculatus
Isurus praecursor Thurmond and Jones 1981 mako shark
"Carcharocles auriculatus" = Carcharodon auriculatus Blainville 1818 white shark
 Lamniformes - Odontaspididae
Carcharias sp. Rafinesque 1810 sand shark
 Carchariniformes - Carcharhinidae
Physogaleus sp.1 Cappetta 1980 requiem shark
Negaprion fequens1 lemon shark
Negaprion sp.1 Whitley 1940 lemon shark
Misrichthys stromeri1 requiem shark
Galeocerdo sp. Müller and Henle 1837 tiger shark
Carcharhinus sp. de Blainville 1816 requiem shark
Rhizoprionodon sp.1 Whitley 1929 sharpnose shark
 Hexanchiformes - Hexanchidae
Hexanchus agassizi1 sixgill shark
 Perciformes -
Xiphioidei indet. Swainson 1839 perch-like fish
 Testudines -
"Chelonia indet." = Testudines
"Chelonia indet." = Testudines Batsch 1788 turtle
 Loricata -
"Crocodilia indet." = Crocodylia
"Crocodilia indet." = Crocodylia Owen 1842 crocodilian
 Sirenia -
 Sirenia - Dugongidae
Dugongidae indet.2 Gray 1821 dugong
Eotheroides sp.1 Palmer 1899 dugong
 Cetacea - Basilosauridae
Dorudon atrox Andrews 1906 whale
Masracetus sp.1 Gingerich 2007 whale
Basilosaurus isis Andrews 1904 whale
 Cassiduloida -
Conoclypeus sp. Davies sea urchin
Anthozoa indet. Ehrenberg 1834
  - Aetobatidae
"Aetobatis sp." = Aetobatus
"Aetobatis sp." = Aetobatus Blainville 1816