Borehole Rokai 2, Naujoji Akmené Suite (Permian of Lithuania)

Where: Lithuania (54.8° N, 23.9° E: paleocoordinates 22.0° N, 29.3° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Naujoji Akmené Formation, Wuchiapingian (259.9 - 254.2 Ma)

• Naujoji Akmené Suite (correlates with the german Zechsteinkalk), lower part of the Werra Horizon (P2wr); Material from depth: 292.15-360.1m

•assigned to the Wuchiapingian based on Clapham pers. commun.

• group of beds-level stratigraphic resolution

Environment/lithology: marl and limestone

• marl, limestone and dolomite

Size classes: macrofossils, mesofossils, microfossils

Preservation: cast, mold/impression

Collection methods: core

Primary reference: P. Suveizdis, K. V. Miklukho-Maklay, L. B. Ukharskaya, I. P. Morozova, N. V. Glushenko, V. K. Ivanov, and B. G. Podoba. 1975. Permskaya sistema Pribaltiki (fauna i stratigrafiya). Permian deposits of the Baltic region (stratigraphy and fauna). Lietuvos Geologijos Mokslinio Tyrimo Institutas, Trudy 29:305pp. [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 46198: authorized by Martin Aberhan, entered by Sabine Nürnberg on 07.01.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Spiriferida - Ambocoeliidae
 Rhynchonellida - Stenoscismatidae
 Terebratulida - Dielasmatidae
"Dielasma elongata" = Dielasma elongatum
"Dielasma elongata" = Dielasma elongatum von Schlotheim 1816
Stenolaemata
 Cryptostomata - Reteporinidae
Kingopora ehrenbergi Geinitz 1846
Bivalvia
 Ostreida - Pterineidae
Pseudobakewellia sedgwickiformis Suveizdis et al. 1975 oyster
 Arcida - Parallelodontidae
Parallelodon striatus von Schlotheim 1816 clam
Ostracoda
 Myodocopida - Polycopidae
 Podocopida - Bairdiidae
Bairdia sp. M'Coy 1844 ostracod
Bairdia plebeia Reuss 1854 ostracod
 Podocopida - Acratiidae
Acratia sp. Delo 1930 ostracod
 Podocopida - Pontocyprididae
 Podocopida - Cytheridae
 Podocopida - Cytherideidae
 Podocopida - Microcheilinellidae
 Palaeocopida - Kirkbyidae
Kirkbya permiana Jones 1850 ostracod
 Platycopida - Paraparchitidae
Paraparchites sp. Ulrich and Bassler 1906 ostracod