Koshagir Ridge, Bolshoy Balkhan (Tiunov collection) (Cretaceous of Turkmenistan)

Where: Turkmenistan (39.6° N, 54.5° E: paleocoordinates 33.5° N, 50.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• 57m below the lower Turonian phosphorite horizon, 5 m below top of Mantelliceras mantelli zone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Collected by K.V. Tiunov

• 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 186645: authorized by Matthew Clapham, entered by Matthew Clapham on 28.06.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Turrilitidae
"Mariella (Mariella) cenomanensis" = Mariella cenomanensis
"Mariella (Mariella) cenomanensis" = Mariella cenomanensis Schluter 1876 ammonite