Borehole Ayzviki 14, Naujoji Akmené Suite (Permian of Latvia)

Where: Latvia (56.3° N, 21.7° E: paleocoordinates 22.8° N, 27.3° 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: 76.3-81.1m

• group of beds-level stratigraphic resolution

Environment/lithology: marl and limestone

• marl, limestone and dolomite

Size class: macrofossils

Preservation: cast

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 46433: authorized by Martin Aberhan, entered by Sabine Nürnberg on 13.01.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Cardiida - Kalenteridae
Permophorus costatus Brown 1839 clam
 Ostreida - Pterineidae
Pseudobakewellia ceratophagaeformis Noinskyi 1913 oyster
incl. var. bicarinata
Pseudobakewellia tumidaeformis n. sp. Suveizdis et al. 1975 oyster
Pseudobakewellia antiquaeformis Noinsky 1913 oyster