Aruk-Tau range, near Akdzhar village (Cretaceous of Tajikistan)

Where: Tajikistan (37.8° N, 68.6° E: paleocoordinates 31.2° N, 62.8° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bostrychoceras polyplocum ammonoid zone, Daralitau Formation, Late/Upper Campanian (83.5 - 70.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collection methods: Repository: Museum of the Department of Geology and Subsoil Resources Protection under the Council of Ministers of the Tajik SSR

Primary reference: A. A. Atabekyan and F. K. Khakimov. 1976. Kampanskie i Maastrikhtskie ammonity sredney Azii 1-146 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 185088: authorized by Matthew Clapham, entered by Matthew Clapham on 09.04.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Scaphitidae
"Trachyscaphites gibbus" = Scaphites (Scaphites) gibbus, "Scaphites aff. brevis" = Jeletzkytes brevis, "Scaphites aff. pumilus" = Hoploscaphites pumilis
"Trachyscaphites gibbus" = Scaphites (Scaphites) gibbus Schlüter 1872 ammonite
"Scaphites aff. brevis" = Jeletzkytes brevis Meek 1876 ammonite
"Scaphites aff. pumilus" = Hoploscaphites pumilis Stephenson 1941 ammonite
 Ammonitida - Baculitidae
Baculites anceps Lamarck 1822 ammonite
 Ammonitida - Nostoceratidae
Didymoceras "sp. 1" Hyatt 1900 ammonite
Didymoceras cf. vancouverensis Gabb 1864 ammonite
"Nostoceras cf. draconis" = Didymoceras draconis Stephenson 1941 ammonite
Nostoceras sp. Hyatt 1894 ammonite
Nostoceras cf. hyatti Stephenson 1941 ammonite
"Didymoceras schloenbachi" = Nostoceras (Nostoceras) schloenbachi Favre 1869 ammonite
 Ammonitida - Diplomoceratidae
"Solenoceras humei" = Solenoceras (Oxybeloceras) humei Douville 1928 ammonite
Glyptoxoceras retrorsum Schlüter 1872 ammonite