AP4t-Jura (Cretaceous of Switzerland)

Where: Switzerland (46.9° N, 6.6° E: paleocoordinates 36.7° N, 16.2° E)

When: Aptian (125.0 - 113.0 Ma)

• The author lists the Urgonien as part of the Neocomian; however, Harland 1989 puts the Urgonien within the lowermost Aptian

Environment/lithology: gray, yellow carbonate

• carbonate can be oolitic

Primary reference: A. Jaccard. 1869. Jura Vaudois et Neuchatelois. Matériaux pour la carte géologique de la Suisse 6:1-340 [M. Patzkowsky/K. Layou/L. Villier]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2192: authorized by Mark Patzkowsky, entered by Karen Layou on 24.06.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Echinoidea
 Cidaroida - Cidaridae
Cidaris lardyi pencil urchin
 Euechinoidea - Hemicidaridae
 Spatangoida - Toxasteridae
Heteraster couloni heart urchin
 Arbacioida - Arbaciidae
Rhynchonellata
 Rhynchonellida - Tetrarhynchiidae
"Rhynchonella lata" = Belbekella lata
"Rhynchonella lata" = Belbekella lata d'Orbigny 1847
 Rhynchonellida - Rhynchonellidae
Rhynchonella sp. Fischer 1809
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Gastropoda
 Trochoidea - Trochidae
 Trochoidea - Turbinidae
Bivalvia
 Pectinida - Pectinoidae
Pecten sp. Müller 1776 scallop
 Pectinida - Limidae
Lima sp. Bruguière 1797 file clam
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
 Cardiida - Arcticidae
"Cyprina orbensis" = Arctica
"Cyprina orbensis" = Arctica clam
Anthozoa
  -
Anthozoa indet. Ehrenberg 1834
unclassified
  -
Porifera indet. Grant 1836