Bu el Haderait (Eocene of Libya)

Where: Libya (28.3° N, 18.5° E: paleocoordinates 21.5° N, 14.2° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Al Gata Member (Wadi Thamit Formation), Lutetian (47.8 - 41.3 Ma)

• Wadi Thamit Group- Al Gata and T'med al k'sour Chalks

•Wadi Thamit identified as a formation by Domning et al 2017

• member-level stratigraphic resolution

Environment/lithology: limestone

• alternating micrites and shelly limestones

•A whitish calcilutite with Nummulites laevigatus,

Size class: macrofossils

Preservation: original phosphate

Collected by R.J.G. Savage in 1964; reposited in the BMNH

• Collected by 1964 Bristol University Expedition (additional specimens in Department of Geology, Bristol University)

Primary reference: G. J. Heal. 1973. Contributions to the Study of Sirenian Evolution. 1-245 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49943: authorized by Mark Uhen, entered by Mark Uhen on 02.05.2005, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Rotaliina
 Nummulitacea - Nummulitidae
 Rotaliacea - Elphidiidae
Elphidium sp. Monfort 1808
 Nonionacea - Nonionidae
Nonion sp. Monfort 1808
Malacostraca
 Decapoda - Carpiliidae
"Palaeocarpilius aquilinus" = Bryocarpilius aquilinus1
"Palaeocarpilius aquilinus" = Bryocarpilius aquilinus1 Collins and Morris 1973 crab
Bivalvia
 Ostreida -
Ostreacea indet. Rafinesque 1815 oyster
Gastropoda
 Ptenoglossa -
Volutacea indet. Rafinesque 1815 snail
Cephalopoda
 Nautilida -
Nautilida indet. Agassiz 1847 nautiloid
Bryozoa
 Bryozoa -
Mammalia
 Sirenia - Protosirenidae
Libysiren sickenbergi n. gen. n. sp.2
Libysiren sickenbergi n. gen. n. sp.2 Domning et al. 2017 sirenian
Echinoidea
 Spatangoida - Schizasteridae
 Spatangoida - Brissidae
 Echinolampadoida - Echinolampadidae
 Clypeasteroida - Fibulariidae
Echinocyamus sp. sand dollar