Bed 104 (Cretaceous of Iraq)

Where: Zakho, Iraq (37.0° N, 43.4° E: paleocoordinates 8.8° N, 38.1° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Pseudosubplanites euxinus ammonoid zone, Chia Gara Formation, Berriasian (145.0 - 139.8 Ma)

• Total thickness 232.4 meters

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, brown limestone and lithified marl

Size class: macrofossils

Preservation: cast

Collection methods: quarrying,

Primary reference: M. K. Howarth. 1992. Tithonian and Berriasian ammonites from the Chia Gara Formation in northern Iran. Palaeontology 35(3):597-655 [A. Rojas/A. Rojas/A. Rojas]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 192416: authorized by Alexis Rojas, entered by Alexis Rojas on 02.04.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Neocomitidae
"Berriasella aff. alpillensis" = Tirnovella alpillensis Mazenot 1939 ammonite
Berriasella "sp. 6" Uhlig 1905 ammonite
Berriasella (Berriasiella) jacobi Mazenot 1939 ammonite
Berriasella aff. carpathica Mazenot 1939 ammonite