Bed 34, Kernbohrung Wittnau, Baden-Württemberg (Jurassic of Germany)

Where: Germany (48.0° N, 7.8° E: paleocoordinates 37.1° N, 17.6° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Jurensismergel Formation, Late/Upper Toarcian (180.1 - 175.6 Ma)

• Bed at a depth of 88.0 m with a thickness of 0.9 m; aalensis zone; aalensis subzone; beyrichi horizon

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified claystone

• In the south-german basin (Süddeutsches Becken) located at the northern margin of the Thetys. About 50 km away from shore
• The beds frequently contain accumulated biodetritus, mainly Echinodermata-debris and Bivalve-shell. The marly claystone is subdivided through layers of pyrite nodules, accumulations of limeconcretions and finley distributed Bivalve-(Bositra)-shell, having a quite disturbed sedimentsuccesion.

Size classes: macrofossils, microfossils

Collection methods: core,

Primary reference: W. Ohmert, V. Allia C. Arias et al. 1996. Die Grenzziehung Unter-/Mitteljura (Toarcium/Aalenium) bei Wittnau und Fuentelsaz [Determinig the boundary between Toarcium/Aalenium near Wittnau and Fuentelsaz]. Informationen Geologisches Landesamt Baden-Württemberg 8:1-52 [W. Kiessling/T. Schossleitner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 59448: authorized by Wolfgang Kiessling, entered by Thomas Schossleitner on 03.04.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Nodosariata
 Vaginulinida - Vaginulinidae
Lenticulina dorbignyi
Lenticulina dorbignyi
ssp. dorbignyi
 Robertinida - Ceratobuliminidae
Reinholdella traubensis
Ostracoda
 Myodocopida - Polycopidae
Polycope discus
 Podocopida - Candonidae
Paracypris "sp. 1", Paracypris "sp. 2"
Paracypris "sp. 1" Sars 1866 ostracod
Paracypris "sp. 2" Sars 1866 ostracod
 Podocopida - Progonocytheridae
Kinkelinella sermoisensis
 Podocopida - Cytheruridae
"Cytheropterina alafastigata" = Orthonotacythere, "Cytheropterina cribna" = Orthonotacythere, Acrocythere michelseni, Otocythere callosa
"Cytheropterina alafastigata" = Orthonotacythere ostracod
"Cytheropterina cribna" = Orthonotacythere ostracod
 Podocopida - Bythocytheridae
Monoceratina scrobiculata
 Podocopida -
Praeschuleridea ventriosa
 Platycopida - Cytherellidae
Cytherelloidea cadomensis
Cephalopoda
 Ammonitida - Hildoceratidae
Cotteswoldia aalensis, Cotteswoldia aalensis, Cotteswoldia subcompta, Tmetoceras circulare, Pseudolioceras beyrichi
Cotteswoldia aalensis Zieten 1832 ammonite
ssp. aalensis
Cotteswoldia aalensis Zieten 1832 ammonite
ssp. distans
Cotteswoldia subcompta Branco 1879 ammonite
Tmetoceras circulare Buckman 1905 ammonite
Pseudolioceras beyrichi Schloenbach 1865 ammonite