Gour Lazib HGL50 (Eocene to of Algeria)

Also known as Draa Hammada; Glib Zegdou outlier; Hammada du Dra

Where: Bechar region, Algeria (30.0° N, 4.0° W: paleocoordinates 24.4° N, 6.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: middle Member (Glib Zegdou Formation), Ypresian to Ypresian (56.0 - 41.3 Ma)

• 1 meter below HGL51; late Early or early Middle Eocene

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lenticular sandstone

• Il renferme un horizon lenticulaire de grès jaune à rouge, à boules d’argile, très riche en charophytes. [yellow to red lenticular sandstone with clay balls, rich in charophytes]

Size classes: macrofossils, microfossils

Collected in 2003 onwards

Collection methods: chemical,

• Approximately 450 kg of sediment acid washed.

Primary reference: M. Adaci, R. Tabuce, F. Mebrouk, M. Bensalah, P.-H. Fabre, L. Hautier, J.-J. Jaeger, V. Lazzari, M. Mahboubi, L. Marivaux, O. Otero, S. Peigné, and H. Tong. 2007. Nouveaux sites à vertébrés paléogènes dans la région des Gour Lazib (Sahara nord-occidental, Algérie). Comptes Rendus Palevol 6:535-544 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 77014: authorized by Patricia Holroyd, entered by Patricia Holroyd on 16.12.2007, edited by Philip Mannion, Matthew Jones and Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• some mammals are new
 Teleostei -
Perciformes indet. Stirton 1953 perch-like fish
 Siluriformes - Clariidae
? Clariidae indet. Bonaparte 1846 airbreathing catfish
 Teleostei -
 Polypteriformes - Polypteridae
Mammalia indet. Linnaeus 1758 mammal
 Primates -
Primates indet. Linnaeus 1758 primate
3 new genera and species
 Primates - Azibiidae
"Azibius trerki" = Azibius trerki, "Dralestes hammadaensis" = Azibius trerki, "Tabelia hammadae" = Azibius trerki, Algeripithecus minutus
"Azibius trerki" = Azibius trerki Sudre 1975 primate
"Dralestes hammadaensis" = Azibius trerki Sudre 1975 primate
"Tabelia hammadae" = Azibius trerki Sudre 1975 primate
Algeripithecus minutus Godinot and Mahboubi 1992 primate
 Glires -
Rodentia "n. gen." rodent
n. gen. n. sp.
 Rodentia - Zegdoumyidae
Lazibemys zegdouensis n. gen. n. sp.1 Marivaux et al. 2011 rodent
HGL50-70 - holotype; paratypes: HGL50-71 and 72
Glibia sp. Vianey-Liaud et al. 1994 rodent
Glibia pentalopha Vianey-Liaud et al. 1994 rodent
HGL50 specimens
Zegdoumys lavocati Vianey-Liaud et al. 1994 rodent
HGL50-01-16, 73 and 74
 Placentalia -
Lipotyphla indet. Haeckel 1866 placental
 Ferae -
Creodonta indet. Cope 1875 creodont
 Proboscidea - Proboscidea
 Placentalia -
Hyracoidea "n. gen." Huxley 1869 hyrax
n. gen. n. sp.
Hyracoidea indet. Huxley 1869 hyrax
 Hyracoidea - Pliohyracidae
? Thyrohyrax sp. Meyer 1973 hyrax
Microhyrax lavocati Sudre 1979 hyrax
 Chiroptera -
Chiroptera indet. Blumenbach 1779 bat
2 new genera and species
Drakonycteris glibzegdouensis n. gen. n. sp.2 Ravel et al. 2016 bat
 Chiroptera - Philisidae
Witwatia sigei3 Ravel et al. 2012 bat
 Chiroptera - Emballonuridae
Pseudovespertiliavus parva n. gen. n. sp.2 Ravel et al. 2016 sac-winged bat
 Ungulata -
Condylarthra indet. eutherian
n. gen. n. sp.
 Hyaenodonta -
Glibzegdouia tabelbalaensis Crochet et al. 2001 eutherian
GZC 35 - holotype; referred specimens: HGL 50-406, 408 and 411
Furodon crocheti n. gen. n. sp.4 Solé et al. 2014 eutherian
HGL 50bis-56 - holotype; referred material: HGL 50-404, 405, 407 and 410
Helioseus insolitus Sudre 1979 mammal
 Ceratodontiformes - Protopteridae
Protopteridae indet. Australian lungfish
Charophyta indet. Migula 1890