Where: Iran (36.4° N, 54.5° E: paleocoordinates 13.7° S, 47.5° E)
• coordinate stated in text
• outcrop-level geographic resolution
When: Shemshak Formation, Middle Toarcian to Middle Toarcian (182.0 - 171.6 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; lithified, bioturbated, fine-grained, silty sandstone
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 141254: authorized by Martin Aberhan, entered by Thomas Schossleitner on 22.03.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Crinoidea | |
Crinoidea indet. Miller 1821 Sea lily | |
Rhynchonellata | |
Terebratulida indet. Waagen 1883 | |
Polychaeta | |
Serpulidae indet. Rafinesque 1835 | |
Bivalvia | |
"Parainoceramus sp." = Kolymia
"Parainoceramus sp." = Kolymia clam | |
Pseudomytiloides sp. Koschelkina 1963 clam | |
Chlamys sp. Röding 1798 scallop | |
"Entolium corneolum" = Entolium (Entolium) corneolum
"Entolium corneolum" = Entolium (Entolium) corneolum Young and Bird 1828 scallop | |
"Arca (Eonavicula) sp." = Eonavicula
"Arca (Eonavicula) sp." = Eonavicula Arkell 1929 clam | |
Protocardia (Protocardia) "sp. B" Beyrich 1845 cockle | |
Pleuromya sp. Meek 1873 clam | |
Pholadomya (Bucardiomya) sp. Rollier 1912 clam | |
Myophorella (Myophorella) sp. Bayle 1878 clam | |
Chondrites sp. von Sternberg 1833
Zoophycos sp. Massalongo 1855 |