Rouen-1 Hardground (Cretaceous of France)

Also known as Rouen, France

Where: Normandy, France (48.6° N, 0.6° E: paleocoordinates 37.4° N, 2.4° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Craie de Rouen Formation, Middle Cenomanian (99.6 - 93.5 Ma)

• PJW: This should be Craie de Rouen given the ammonoid fauna.

• formation-level stratigraphic resolution

Environment/lithology: lithified chalk

Size class: macrofossils

Collection methods: surface (in situ), mechanical,

Primary reference: J. Hardenbol, M. Caron, F. Amedro, C. Dupuis and F. Robaszynski. 1993. The Cenomanian-Turonian boundary in central Tunisia in the context of a sequence-stratigraphic interpretation. Cretaceous Research 14(4/5):449-454 [C. Marshall/S. Low]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 4027: authorized by Charles Marshall, entered by Sofy Low on 13.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• After Juignet & Kennedy (1976).
Cephalopoda
 Ammonitida - Scaphitidae
Scaphites equalis Sowerby 1813 ammonite
Scaphites obliquus Sowerby 1813 ammonite
 Ammonitida - Turrilitidae
Turrilites costatus Lamarck 1801 ammonite
 Ammonitida - Baculitidae
"Sciponoceras baculoide" = Sciponoceras baculoides
"Sciponoceras baculoide" = Sciponoceras baculoides Mantell 1822 ammonite
 Ammonitida - Acanthoceratidae
Mantelliceras tuberculatum Mantell 1822 ammonite
Mantelliceras cantianum Spath 1926 ammonite
Mantelliceras ex gr. dixoni Spath 1926 ammonite
"gr. dixoni" - originally entered as "Mantelliceras gr. dixoni"
Mantelliceras mantelli Sowerby 1814 ammonite
"Calycoceras gentoni" = Calycoceras (Gentoniceras) gentoni Brongniart 1822 ammonite
 Ammonitida - Forbesiceratidae
Forbesiceras largilliertianum d'Orbigny 1841 ammonite
Forbesiceras obtectum Sharpe 1853 ammonite
 Ammonitida - Schloenbachiidae
Schloenbachia varians Sowerby 1817 ammonite
 Ammonitida - Desmoceratidae
"Puzosia communis" = Puzosia (Puzosia) communis
"Puzosia communis" = Puzosia (Puzosia) communis Spath 1923 ammonite