Also known as Djebel Onk
Where: Algeria (34.7° N, 8.0° W: paleocoordinates 28.2° N, 8.9° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Thanetian (59.2 - 56.0 Ma)
• Top of the main sub-layer (2) or "a" belonging to the upper unit of the "Upper Thanetian phosphatic beam"
• bed-level stratigraphic resolution
Environment/lithology: poorly lithified, phosphatic claystone
Size class: macrofossils
Collection methods: bulk, sieve
• Repository: Laboratory of Geosciences, Tebessa University, Algeria
Primary reference: S. Boulemia and S. Adnet. 2023. A new Palaeogene elasmobranch fauna (Tebessa region, eastern Algeria) and the importance of Algerian-Tunisian phosphates for the North African fossil record. Annales de Paléontologie 109(102632) [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 232262: authorized by Matthew Clapham, entered by Matthew Clapham on 04.11.2023
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
Premontreia (Oxyscyllium) subulidens, Scyliorhinus entomodon, Scyliorhinus aff. ptychtus, Abdounia beaugei
Premontreia (Oxyscyllium) subulidens Arambourg 1952 cat shark
Scyliorhinus entomodon Noubhani and Cappetta 1997 cat shark
Scyliorhinus aff. ptychtus Noubhani and Cappetta 1997 cat shark
Abdounia beaugei Arambourg 1935 cat shark | |
Physogaleus secundus, Physogaleus onkensis n. sp., "Rhizoprionodon gantourensis" = Rhizoprionodon ganntourensis
Physogaleus secundus Winkler 1876 requiem shark
Physogaleus onkensis n. sp. Boulemia and Adnet 2023 requiem shark
"Rhizoprionodon gantourensis" = Rhizoprionodon ganntourensis Arambourg 1952 sharpnose shark | |
Brachycarcharias lerichei Casier 1946 sand tiger shark
Jaekelotodus africanus Arambourg 1952 sand tiger shark | |
"Serratolamna" gafsana White 1926 mackerel shark | |
Otodus obliquus, "? Cretalamna sp." = Cretolamna
Otodus obliquus Agassiz 1838 mackerel shark
"? Cretalamna sp." = Cretolamna Glikman 1958 mackerel shark | |
Striatolamia striata Winkler 1874 goblin shark | |
| |
Ginglymostoma sp., "Ginglymostoma aff. kouribgaense" = Ginglymostoma khouribgaense, Nebrius obliquus
Ginglymostoma sp. Müller and Henle 1838 nurse shark
"Ginglymostoma aff. kouribgaense" = Ginglymostoma khouribgaense Noubhani and Cappetta 1997 nurse shark
Nebrius obliquus Leidy 1877 nurse shark | |
Palaeorhincodon dartevellei Arambourg 1952 carpet shark | |
| |
Squalus sp. Linnaeus 1758 dogfish shark | |
Squatina prima Winkler 1874 angel shark | |
"Aetomylaeus" cf. striatus, "Aetomylaeus" cf. dixoni, Garabatis atlasi, Archaeomanta priemi, Burnhamia sp.
"Aetomylaeus" cf. striatus Agassiz 1843 eagle ray
"Aetomylaeus" cf. dixoni Agassiz 1843 eagle ray
Garabatis atlasi Cappetta 1993 cow-nosed ray
Archaeomanta priemi Herman 1979 eagle ray
Burnhamia sp. Cappetta 1976 eagle ray | |
Heterotorpedo aff. brahimi Noubhani and Cappetta 1997 stingray | |
Dasyatis sp. Rafinesque 1810 whiptail stingray |