Sessao (Paleocene of Niger)

Where: Niger (16.9° N, 4.2° E: paleocoordinates 8.8° N, 0.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Thanetian (59.2 - 56.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marginal marine; marl

Size class: macrofossils

Collected by L. Thaler, D.E. Russell, J. Sudre, P. Louis in 1966

• Repository: Laboratoire de Paléontologie de l'Université des Sciences et Techniques du Languedoc

Primary reference: H. Cappetta. 1972. Les poissons crétacés et tertiaires du bassin des Iullemmeden (République du Niger). Palaeovertebrata 5:179-251 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 229530: authorized by Matthew Clapham, entered by Matthew Clapham on 15.03.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Rajiformes - Rhinobatidae
Rhinobatos sp. Link 1790 guitarfish
 Rajiformes - Rajidae
Raja louisi n. sp.
Raja louisi n. sp. Cappetta 1972 skate
 Carcharhiniformes - Scyliorhinidae
Scyliorhinus aff. cabindensis Leriche 1927 cat shark
 Orectolobiformes - Ginglymostomatidae
Ginglymostoma sokotoense White 1934 nurse shark
 Orectolobiformes - Orectolobidae
"Orectolobus nigeriensis" = Squatiscyllium nigeriensis
"Orectolobus nigeriensis" = Squatiscyllium nigeriensis White 1934 wobbegong
 Lamniformes - Odontaspididae
Odontaspis substriata Stromer 1910 sand tiger shark
 Torpediniformes - Torpedinidae
Eotorpedo hilgendorfi Jaekel 1904 torpedo
Eotorpedo jaekeli White 1934 torpedo
 Myliobatiformes - Dasyatidae
Hypolophites sp. Stromer 1910 whiptail stingray
Hypolophites thaleri n. sp. Cappetta 1972 whiptail stingray
Dasyatis sp. Rafinesque 1810 whiptail stingray
Dasyatis russelli n. sp. Cappetta 1972 whiptail stingray
Dasyatis sessaoensis n. sp. Cappetta 1972 whiptail stingray
Dasyatis sudrei n. sp. Cappetta 1972 whiptail stingray
Dasyatis duponti Winkler 1874 whiptail stingray
 Myliobatiformes - Myliobatidae
Myliobatis wurnoensis White 1934 eagle ray
Osteichthyes
 Dipnoi - Ceratodontidae
Ceratodus casieri n. sp. Cappetta 1972 lungfish
Actinopteri
 Pycnodontiformes - Pycnodontidae
Pycnodus cf. praecursor Dartevelle and Casier 1949
 Osteoglossiformes - Osteoglossidae
Brychaetus aff. muelleri Woodward 1901 arowana
 Siluriformes - Bagridae
Eomacrones wilsoni White 1934 naked catfish