Lakse Elv River Bend, Block 2 (Jurassic of Greenland)

Where: Greenland (70.5° N, 22.6° W: paleocoordinates 52.1° N, 5.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Cape Stewart Beds Formation, Pliensbachian (190.8 - 182.7 Ma)

• "Charmouthian"

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, coarse-grained, shelly/skeletal, calcareous sandstone

• coarse calcareous arkose-sandstone

Size class: macrofossils

Collected by A. Rosenkrantz in September, 1926

• Repository: (presumed) University of Coppenhagen

Primary reference: A. Rosenkrantz. 1934. The Lower Jurassic Rocks of East Greenland Part 1. Meddelelser Om Gronland 110(1):4-122 [M. Clapham/M. Manojlovic/M. Manojlovic]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 161973: authorized by Matthew Clapham, entered by Marko Manojlovic on 16.09.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Spiriferinida - Spiriferinidae
 Rhynchonellida - Tetrarhynchiidae
Tetrarhynchia sp. Buckman 1917
Tetrarhynchia sp. B
Bivalvia
 Ostreida - Gryphaeidae
Gryphaea arcuata Lamarck 1801 oyster
Gryphaea cymbium Lamarck 1819 oyster
 Ostreida - Malleidae
Isognomon sp. Lightfoot 1786 oyster
Isognomon n. sp.
 Pectinida - Limidae
 Pectinida - Oxytomidae
"Oxytoma inaequivalve" = Oxytoma inequivalvis
"Oxytoma inaequivalve" = Oxytoma inequivalvis Sowerby 1819 scallop
 Pectinida - Pectinoidae
Chlamys substriata, "Aequipecten priscus" = Pecten priscus
Chlamys substriata Roemer 1835 scallop
"Aequipecten priscus" = Pecten priscus Schlotheim 1820 scallop
 Carditida - Cardiniidae
Cardinia hybrida Sowerby 1817 clam
 Carditida - Hippopodiidae
Hippopodium ponderosum Sowerby 1819 clam
 Pholadomyida - Pholadomyidae
Pholadomya ambigua Sowerby 1819 clam
 Cardiida - Kalenteridae
Myoconcha decorata Münster 1837 clam
numerous specimens
 Cardiida - Tancrediidae
Tancredia sp. Lycett 1850 clam
Tancredia n. sp. A
 Pholadida - Pleuromyidae
 Lucinida - Mactromyidae
Mactromya ? groenlandica Rosenkrantz 1934 clam
Mactromya? groenlandica n. sp.
 Trigoniida - Trigoniidae
"Trigonia lingonensis" = Liotrigonia lingonensis
"Trigonia lingonensis" = Liotrigonia lingonensis Dumortier 1869 clam