Northeast of Belek, Bolshoy Balkhan (Cretaceous of Turkmenistan)

Where: Turkmenistan (39.6° N, 54.4° E: paleocoordinates 33.5° N, 50.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Mantelliceras mantelli ammonoid zone, Early/Lower Cenomanian (99.6 - 93.5 Ma)

• 36 m above the base of the Cenomanian claystone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siltstone

Size class: macrofossils

Collection methods: Repository: Central Geological and Prospecting Museum, St. Petersburg (TsGM)

Primary reference: A. A. Atabekyan. 1985. Turrilitidy pozdnego Al'ba i Cenomana yuga SSSR. Akademiya Nauk SSSR, Ministerstvo Geologii SSSR, Mezhvedomstvennyy Stratigraficheskiy Komitet SSSR, Trudy 14:1-111 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 186686: authorized by Matthew Clapham, entered by Matthew Clapham on 30.06.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Hoplitidae
Hyphoplites falcatus Mantell 1822 ammonite
 Ammonitida - Schloenbachiidae
Schloenbachia varians Sowerby 1817 ammonite
ssp. subtuberculata
 Ammonitida - Acanthoceratidae
Mantelliceras cf. tuberculatum Mantell 1822 ammonite
 Ammonitida - Turrilitidae
Mariella (Mariella) essenensis Geinitz 1849 ammonite
Mariella (Mariella) cf. essenensis Geinitz 1849 ammonite