Unit XII (inférieur Hauterivian) - Coupe de la vallée du Cheiron (Cretaceous of France)

Where: Provence, France (43.9° N, 6.5° E: paleocoordinates 34.4° N, 16.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hauterivian (132.9 - 129.4 Ma)

• Collection from bed XII, a 118 m thick marl, 495 m above the base of the section. No apparent lithostratigraphic nomenclature.

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone and marl

• No paleoenvironmental data readily apparent; obviously from a carbonate facies, however.
• Alternating compact limestone and marl.

Size class: macrofossils

Collection methods: Collection a composite for the unit described in text.

Primary reference: P. Cotillon. 1968. Le Crétacé inférieur de l'arc subalpin de Castellane entre l'Asse et le Var: Stratigraphy et Sédimentologie. 68 [A. Miller/A. Hendy/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 56063: authorized by Austin Hendy, entered by Austin Hendy on 10.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Faunal list presumably compiled by the present author, although nomenclature may now be antiquated.
Foraminifera
 Globigerinoidea - Globigerinidae
 Lituolida - Lituolidae
Nodosariata
 Vaginulinida - Vaginulinidae
Lenticulina ouachensis
Subspecies: Lenticulina ouachensis paucistriata
 Nodosariida - Nodosariidae
Lagena hauteriviana
Subspecies: Lagena hauteriviana hauteriviana
Globothalamea
 Rotaliida - Gavelinellidae
Foraminifera
  -
"Marginulina diaffaensis" = Cristellaria (Marginulina)
"Marginulina diaffaensis" = Cristellaria (Marginulina)
 Globigerinina - Hedbergellidae
Cephalopoda
 Ammonitida - Olcostephanidae
Olcostephanus astierianus d'Orbigny 1840 ammonite
Olcostephanus cf. jeannoti d'Orbigny 1841 ammonite
Olcostephanus sayni Kilian 1895 ammonite
 Ammonitida - Crioceratitidae
 Ammonitida - Neocomitidae
Lyticoceras "sp. 2" Hyatt 1900 ammonite
 Ammonitida - Desmoceratidae
 Ammonitida - Holcodiscidae
 Phylloceratida - Phylloceratidae
Phyllopachyceras infundibulum d'Orbigny 1840 ammonite
 Belemnitida - Duvaliidae
Duvalia dilatata Blainville 1825 belemnite