Upper Eocene of Siemien-Luszawa region (Eocene of Poland)

Where: Poland (51.2° N, 22.6° E: paleocoordinates 49.7° N, 17.7° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Bartonian (41.3 - 38.0 Ma)

• No lithostratigraphic unit given in text or found in literature search. Deposits are however less than 10 m thick, overlain by Quaternary sands. Assigned to Bartonian on the basis of similarity of faunal assemblage to Bartonian of England. Furthermore, analysis of planktonic foraminifers shows the unit to be the Globigerapsis semiinvolute Zone, that is in the lower part of the Upper Eocene, and on the basis of coccoliths to be in the Discoaster nodifer biozone, that is uppermost Middle and lowermost Upper Eocene.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; glauconitic, pebbly sandstone and phosphatic sandstone

• The Upper Eocene sequence is represented by transgressive marine series. Most taxa occupy neritic and littoral and warm-temperate conditions. Numerous corals suggest normal salinity. Probably accumulaed in 10-90 m of water depth.
• The basal part of the series is foirmed by quartz-glauconitic sands with quartz and lydite pebbles. Upwards the content of gravel decreases and numerous phosphatic nodules appear. The content of calcium and marl in these sands is variable; in places intercalations of limestone are found. The deposit becomes devoid of calcium, silty, clay-sandy and clayey and gaizes appear towards the top of the unit.

Size class: macrofossils

Preservation: original aragonite, original calcite

Collection methods: Macrofauna are housed in the Geological Instiutute (IG) of Poland.

Primary reference: E. Wozny. 1977. Pelecypods from the Upper Eocene of East Poland. Acta Palaeontologica Polonica 22(1):93-112 [A. Miller/A. Hendy/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49750: authorized by Austin Hendy, entered by Austin Hendy on 24.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for bivalvia and apparently complete for gastropods (although this is a meagre fauna). Includes all macrofossils.
 Terebratulida - Cancellothyrididae
 Pectinida - Pectinoidae
Spondylus buchi Philippi 1846 scallop
Spondylus tenuispina Sandberger 1863 scallop
Lentipecten corneus Sowerby 1818 scallop
Chlamys sokolovi Kluschnikov 1958 scallop
Chlamys caillaudi Oppenheim 1903 scallop
"Chlamys recondita" = Mimachlamys reconditus Solander 1766 scallop
Chlamys carinata Sowerby 1828 scallop
Chlamys biarritzensis d'Archiac 1846 scallop
Subspecies: Chlamys biarritzensis subtripartita
 Ostreida - Ostreidae
"Ostrea plicata" = Cubitostrea plicata Solander 1766 oyster
Ostrea angusta Deshayes 1824 oyster
Ostrea prona Wood 1861 oyster
Ostrea ventilabrum Goldfuss 1826 oyster
Ostrea submissa Deshayes 1864 oyster
 Carditida - Crassatellidae
Crassatella compressa Lamarck 1806 clam
Crassatella desmaresti Deshayes 1866 clam
Crassatella sulcata Solander 1866 clam
Salaputium woodi Koenen 1865 clam
 Cardiida - Veneridae
"Pitar sulcataria" = Pitar (Calpitaria) sulcatarius
"Pitar sulcataria" = Pitar (Calpitaria) sulcatarius Deshayes 1825 venus clam
 Hiatellida - Hiatellidae
"Panopea gastaldi" = Panopea gastaldii
"Panopea gastaldi" = Panopea gastaldii Michelotti 1861 clam
 Sorbeoconcha - Turritellidae
Mesalia cf. marginata, "Tomyris ukrainae" = Motyris
"Tomyris ukrainae" = Motyris turret shell
 Cheilostomata - Batoporidae
 Cheilostomata - Orbituliporidae
 Cyclostomata - Horneridae
 Lamniformes - Odontaspididae
Odontaspis hopei Agassiz 1843 sand tiger shark
Odontaspis macrota Agassiz 1843 sand tiger shark
 Scleractinia - Dendrophylliidae
 Scleractinia - Caryophylliidae
Parasmilia sp. Milne-Edwards and Haime 1848 stony coral