Niechobrz Limestone (Miocene of Poland)

Where: Poland (49.9° N, 21.9° E: paleocoordinates 49.3° N, 21.5° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Niechobrz Formation, Middle Miocene (16.0 - 11.6 Ma)

• Middle Miocene (early Badenian). Limestones overly discordantly (about 25°) early Tertiary flysch deposits of the marginal unit. Calcareous nannoplankton indicates Early Badenian nannozone NN5.

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; shelly/skeletal limestone

• Accumulated in shallow-marine environment (10-30 m) under strong water agitation, not far from the shore.
• Limestone composed of skeletal remains of red algae and bryozoans.

Size class: macrofossils

Collection methods: Collections are housed in the Museum of the Earth (Polish Academy of Sciences, Warsaw). Material collected by Pisera in 1972. Some material is housed in the Museum of the State Geological Survey

Primary reference: B. Studencka. 1994. Middle Miocene bivalve faunas from the carbonate deposits of Poland (Central Paratethys). Geologie Mediterraneenne 11(1-2):137-145 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 51688: authorized by Austin Hendy, entered by Austin Hendy on 10.06.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for bivalvia. No other Molluscan groups reported. Nomenclature appears fair to good.
Bivalvia
 Arcida - Arcidae
Barbatia (Barbatia) barbata Linnaeus 1758 clam
"Anadara (Anadara) diluvii" = Scapharca (Scapharca) diluvii Lamarck 1805 clam
Acar clathrata miniature ark
 Arcida - Glycymerididae
 Pectinida - Limidae
Lima (Lima) lima Linnaeus 1758 file clam
 Pectinida - Pectinoidae
"Chlamys (Aequipecten) scabrella" = Chlamys scabrellus Lamarck 1819 scallop
"Crassadoma multistriata" = Talochlamys multistriata Poli 1795 scallop
"Chlamys (Aequipecten) angelonii" = Aequipecten scallop
Chlamys (Aequipecten) macrotis Sowerby 1847 scallop
Spondylus (Spondylus) crassicosta Lamarck 1819 scallop
 Ostreida - Pinnidae
Atrina pectinata Linnaeus 1758 oyster
 Ostreida - Gryphaeidae
Hyotissa hyotis Linnaeus 1758 Honeycomb Oyster
 Ostreida - Ostreidae
Crassostrea crassicostata, "Ostrea (Ostrea) lamellosa" = Ostrea edulis
"Ostrea (Ostrea) lamellosa" = Ostrea edulis Linnaeus 1758 oyster
Subspecies: Ostrea lamellosa offreti
 Mytilida - Mytilidae
 Lucinida - Lucinidae
"Lucinoma borealis" = Lucinoma (Lucinoma) borealis Linnaeus 1767 clam
 Pholadida - Corbulidae
 Cardiida - Veneridae
 Cardiida - Semelidae
 Carditida - Carditidae
"Scalaricardita scalaris" = Cyclocardia (Scalaricardita) clam
"Scalaricardita orbicularis" = Cyclocardia (Scalaricardita) clam