Levyy Titan Creek, Bed 41, Intomodesma costatum Subzone, Okhotsk Massif (Permian of Russian Federation)

Where: Russian Federation (61.1° N, 147.2° E: paleocoordinates 77.0° N, 32.9° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Kulu Formation, Wuchiapingian (259.9 - 254.2 Ma)

• 100 m thick.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified, fine-grained, coarse, gray, green, conglomeratic sandstone

• Dark greenish gray sandstone, fine-to coarse-grained, frequently poorly sorted and grading sometimes into more clayey varieties. The upper half of the member contains admixture of coarse-grained sand, gravel, and rare well-rounded pebble of intermediate volcanics and albitophyre. The sandstone contains also black vaguely and capriciously shaped clayey inclusions and wood fragments usually pyritized.

Size class: macrofossils

Primary reference: A. S. Biakov. 2007. Permian biostratigraphy of the northern Okhotsk region (northeast Asia). Stratigraphy and Geological Correlation 15(2):161-184 [M. Clapham/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 102207: authorized by Matthew Clapham, entered by Matthew Clapham on 11.01.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Murchisoniina - Gosseletinidae
Glabrocingulum cf. campbelli, ? Mourlonia sp.
Glabrocingulum cf. campbelli Waterhouse 1963 snail
? Mourlonia sp. de Koninck 1883 snail
Bivalvia
 Nuculanida - Polidevciidae
Polidevcia cf. magna
Polidevcia cf. magna Lea 1833 clam
 Cardiidia - Sanguinolitidae
Praeundulomya sp., Myonia sp.
Praeundulomya sp. Dickins 1957 clam
Myonia sp. Dana 1847 clam
 Pectinida - Streblochondriidae
? Guizhoupecten cf. corrugatus
 Myalinida - Atomodesmatidae
Maitaia cf. hurenensis, Intomodesma costatum
Maitaia cf. hurenensis Biakov 1992 clam
Intomodesma costatum Popov 1958 clam