Bed 25, Kernbohrung/Tongrube Wittnau, Baden-Württemberg (Jurassic of Germany)

Where: Germany (48.0° N, 7.8° E: paleocoordinates 37.4° N, 17.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Jurensismergel Formation, Early/Lower Aalenian (175.6 - 171.6 Ma)

• bed at depth 80.3 m with a thickness of 1.6 m; opalinum zone; torulosum subzone

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, shelly/skeletal claystone

• In the south-german basin (Süddeutsches Becken) located at the northern margin of the Thetys. About 50 km away from shore
• In this part of the Jurensismergel (jurensemarl) the quite fast and constant sedimentation is characterized by mostly strong Bositra-accumulations. The high content of lime results in so called Tutenmergel layers and lenses. Lime and pyrite nodules are less common in this part.

Size classes: macrofossils, microfossils

Collection methods: bulk, 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 59457: 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
Cephalopoda
 Ammonitida - Lytoceratidae
"Pachylytoceras torulosum" = Pleurolytoceras torulosum
"Pachylytoceras torulosum" = Pleurolytoceras torulosum Schubler 1831 ammonite
 Ammonitida - Hildoceratidae
"Cotteswoldia cf. arcuata" = Pleydellia, "Cotteswoldia paucicostata" = Pleydellia, "Cotteswoldia subcandida" = Pleydellia, Cotteswoldia cf. lotharingica, Pleydellia cf. arkelli, Pleydellia cf. buckmani, Pleydellia leura
"Cotteswoldia cf. arcuata" = Pleydellia ammonite
"Cotteswoldia paucicostata" = Pleydellia ammonite
"Cotteswoldia subcandida" = Pleydellia ammonite
Cotteswoldia cf. lotharingica Branco 1879 ammonite
Pleydellia cf. arkelli Maubeuge 1950 ammonite
Pleydellia cf. buckmani Maubeuge 1947 ammonite
Pleydellia leura Buckman 1890 ammonite
 Belemnitida - Hastitidae
"Rhopalobelus clavatus" = Hastites
"Rhopalobelus clavatus" = Hastites belemnite
 Belemnitida -
Brevibelus breviformis
Brevibelus breviformis Voltz 1830 belemnite
Ostracoda
 Platycopida - Cytherellidae
Cytherella reticuloornata, Cytherelloidea cadomensis
 Podocopida - Bythocytheridae
Monoceratina stimulea, Monoceratina scrobiculata
 Podocopida - Cytheruridae
Otocythere callosa, "Cytheropterina alafastigata" = Orthonotacythere, "Cytheropterina cribna" = Orthonotacythere
"Cytheropterina alafastigata" = Orthonotacythere ostracod
"Cytheropterina cribna" = Orthonotacythere ostracod
 Podocopida - Progonocytheridae
Kinkelinella sermoisensis, Kinkelinella fischeri, Aphelocythere ramosa, Aphelocythere kuhni
 Podocopida - Candonidae
Paracypris "sp. 1"
Paracypris "sp. 1" Sars 1866 ostracod
 Podocopida - Protocytheridae
Aaleniella reticulata
 Podocopida -
Praeschuleridea ventriosa
 Myodocopida - Polycopidae
Polycope discus
Nodosariata
 Robertinida - Ceratobuliminidae
Reinholdella traubensis
 Vaginulinida - Vaginulinidae
Lenticulina dorbignyi, Lenticulina cf. foveolata
Lenticulina dorbignyi
ssp. dorbignyi
Coccolithophyceae
 Podorhabdales - Biscutaceae
Discorhabdus striatus
Discorhabdus striatus Moshkovitz and Ehrlich 1976
 Podorhabdales - Cretarhabdaceae
Retecapsa incompta
 Podorhabdales - Calyculaceae
Carinolithus superbus, Calyculus sp.
Carinolithus superbus Deflandre 1954
Calyculus sp. Noël 1973
 Prymnesiophycidae - Prymnesiophycidae
Schizosphaerella sp.
Schizosphaerella sp. Deflandre and Dangeard 1938
 Watznaueriales - Watznaueriaceae
Bussonius prinsii
Bussonius prinsii Noël 1973
 Eiffellithales - Chiastozygaceae
Crepidolithus crassus
Crepidolithus crassus Deflandre 1954