Chemaudin organic-rich clayey level Bathonian microflora (Jurassic of France)

Where: France (47.2° N, 5.9° E: paleocoordinates 37.3° N, 15.7° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Middle Bathonian (167.7 - 164.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: claystone

• meso-haline environment. Isolated cays (mangal)
• sapropelic palynofacies with abundant (>95%) organic matter. organic-rich clayey level.

Size class: microfossils

Preservation: original sporopollenin

Collection methods: bulk,

Primary reference: M. Philippe, F. Thevenard, G. Barale, S. Ferry, and G. Guignard. 1998. Middle Bathonian floras and phytocoenoses of France. Palaeogeography, Palaeoclimatology, Palaeoecology 143:135-158 [C. Looy/F. Verbruggen/F. Verbruggen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 31320: authorized by Cindy Looy, entered by Frederike Verbruggen on 07.05.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• The palynological data come from M. Roche (in pers. comm.) and new data (Philippe et al.)
Calamospora tener
(Leschik) M├Ądler
 Pinales - Cheirolepidiaceae
"Corollina sp." = Classopollis
"Corollina sp." = Classopollis Pflug 1953
 Pinales -
Callialasporites trilobatus Dev 1961
(Balme) Sukh-Dev
Callialasporites microvelatus Schulz 1966
 Cycadales -
Eucommiidites troedsonnii cycads
Deltoidospora toralis Lund 1977
(Leschik) Lund
 Gymnospermophyta -
Vitreisporites pallidus Nilsson 1958
(Reissinger) Nilsson