Where: Iran (36.4° N, 54.5° E: paleocoordinates 13.6° S, 47.7° E)
• coordinate stated in text
• outcrop-level geographic resolution
When: Shemshak Formation, Middle Toarcian to Middle Toarcian (182.0 - 175.6 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; poorly lithified, bioturbated, fine-grained, silty sandstone and argillaceous siltstone
Size class: macrofossils
Primary reference: F. T. Fürsich, M. Wilemsen, K. Seyed-Emami, F. Cecca, and M. R. Majidifard. 2005. The upper Shemshak Formation (Toarcian–Aalenian) of the Eastern Alborz (Iran): Biota and palaeoenvironments during a transgressive–regressive cycle. Fazies 51:365-384 [M. Aberhan/T. Schossleitner/T. Schossleitner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 141253: authorized by Martin Aberhan, entered by Thomas Schossleitner on 22.03.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Polychaeta | |
Serpulidae indet. Rafinesque 1835 | |
Gastropoda | |
Pseudomelania sp. Pictet and Campiche 1862 snail | |
Bivalvia | |
Nuculida indet. Dall 1889 clam | |
Modiolus sp. Lamarck 1801 mussel
Inoperna sp. Conrad 1873 mussel | |
Chlamys sp. Röding 1798 scallop
Camptonectes (Camptonectes) auritus Schlotheim 1813 scallop
Eopecten sp. Douvillé 1897 scallop | |
Oxytoma sp. Meek and Hayden 1865 scallop
Meleagrinella sp. Whitfield 1855 scallop | |
Propeamussium sp. de Gregorio 1884 mud scallop | |
"Entolium corneolum" = Entolium (Entolium) corneolum
"Entolium corneolum" = Entolium (Entolium) corneolum Young and Bird 1828 scallop | |
Pinna sp. Linnaeus 1758 oyster | |
Ostreidae indet. Rafinesque 1815 oyster | |
Grammatodon (Grammatodon) sp., "Grammatodon (Cosmetodon) sp." = Cosmetodon
Grammatodon (Grammatodon) sp. Meek and Hayden 1860 clam
"Grammatodon (Cosmetodon) sp." = Cosmetodon Branson 1942 clam | |
Protocardia (Protocardia) "sp. A" Beyrich 1845 cockle | |
Pleuromya sp. Meek 1873 clam | |
Ceratomya sp. Sandberger 1864 clam | |
Pholadomya (Bucardiomya) sp. Rollier 1912 clam
Pholadomya (Pholadomya) sp. Sowerby 1823 clam
Goniomya sp. Agassiz 1842 clam | |
Mactromya sp. Agassiz 1843 clam | |
Nicaniella sp. Chavan 1945 clam | |
Myophorella (Myophorella) sp. Bayle 1878 clam | |