In Beceten (Cretaceous to of Niger)

Also known as Inbécéten

Where: Tahoua, Niger (15.1° N, 6.0° E: paleocoordinates 1.7° N, 0.9° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: In Beceten Formation, Late/Upper Coniacian to Late/Upper Coniacian (89.3 - 83.6 Ma)

• layer enclosed by two well-dated beds (biostratigraphically), described as "lower Senonian"

•"late Coniacian-Santonian (Báez and Rage 1998)

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; shale and sandstone

• "fluvial-lacustrine" (Báez and Rage 1998)
• "a formation composed of an alternation of clays and limestones"; vertebrates are in one of the clay beds

•"shales and sandstones" (Báez and Rage 1998)

Size classes: macrofossils, mesofossils

Collected by Greigert, F. de Broin, D. E. Russell, P. Taquet in 1966, 1970–1973; reposited in the MNHN

Collection methods: bulk, surface (float), surface (in situ), sieve,

• "Most fossils lie exposed on the ground surface... A large number of the specimens collected came from screen-washing operations" (Báez and Rage 1998)

Primary reference: F. de Broin, E. Buffetaut, J.-C. Koeniguer, J.-C. Rage, D. E. Russell, P. Taquet, C. Vergnaud-Grazzini and S. Wenz. 1974. La fauna de Vertébrés continentaux du gisement d'In Beceten (Sénonien du Niger) [The continental vertebrate fauna from the In Beceten locality (Senonian of Niger)]. Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences à Paris, série D 279:469-472 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 48867: authorized by Matthew Carrano, entered by Matthew Carrano on 01.04.2005, edited by John Alroy and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

 Holostei - Gigantodontidae
Stromerichthys sp. Weiler 1935
 Amiiformes - Amiidae
Amia sp. Linnaeus 1766 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteidae indet. Cuvier 1825 gar
"close to the genus Paralepidosteus"
 Dipnoi - Ceratodontidae
Ceratodus sp. Agassiz 1838 lungfish
 Salientia - Ranidae
Ranidae indet. Rafinesque 1814 frog
 Salientia - Panpipidae
Pipidae "sp. 2", "Pachybatrachus taqueti n. gen. n. sp." = Pachycentrata taqueti1
Pipidae "sp. 2" Gray 1825 clawed frog
new form
"Pachybatrachus taqueti n. gen. n. sp." = Pachycentrata taqueti1 Báez and Rage 1998 clawed frog
"very close to Xenopus"
 Caudata - Urodela
Urodela indet. salamander
 Testudines - Podocnemidae
Erymnochelys madagascariensis Grandidier 1867 sideneck turtle
 Testudines - Pelomedusidae
Pelomedusidae indet. Cope 1868 sideneck turtle
similar to Podocnemis
 Saurischia - Titanosauridae
Titanosaurinae indet. Lydekker 1893 titanosaurid
 Avetheropoda -
 Loricata -
cf. Araripesuchus sp.3 Price 1959 crocodilian
Trematochampsa taqueti n. gen. n. sp.2 Buffetaut 1974 crocodilian
Tethysuchia indet.3 crocodilian
"provisionally assigned"
 Serpentes -
Serpentes indet. snake
same as undescribed genus from Paleocene of Niger
 Squamata - Madtsoiidae
Madtsoia aff. madagascariensis4 Hoffstetter 1961 snake
similar to M. madagascariensis but with some differences of possible specific value
 Squamata -
 Ceratodontiformes - Lepidosirenidae
Protopterus sp. Agassiz 1843 african lungfish
"Dicotyledoneae indet." = Dicotyledonae
"Dicotyledoneae indet." = Dicotyledonae
silicified trunks