Shahmirzad section, Level II (Jurassic of Iran)

Where: Iran (35.8° N, 53.3° E: paleocoordinates 11.3° S, 47.9° E)

• coordinate stated in text

When: Amaltheus margaritatus ammonoid zone, Margaritatus (189.6 - 183.0 Ma)

Environment/lithology: marine; lithified sandstone and lithified, concretionary, calcareous sandstone

• reworked, hard calcareous sandstone concretions in a matrix of fine−grained sand−

•stone.

Size class: macrofossils

Preservation: mold/impression, original aragonite

Primary reference: K. Seyed-Emami, F. T. Fürsich, M. Wilmsen, M. R. Majidifard, and A. Shekarifard. 2008. Lower and Middle Jurassic Ammonoids of the Shemshak Group in Alborz, Iran and Their Palaeobiogeographical and Biostratigraphical Importance. Acta Palaeontologica Polonica 53(2):237-260 [A. Kocsis/G. Harrison/A. Kocsis]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 196953: authorized by Adam Kocsis, entered by George William Harrison on 15.10.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Hildoceratidae
"Oregonites cf. imlayi" = Canavaria, "Protogrammoceras (Matteiceras) cf. nitescens" = Fuciniceras (Matteiceras) nitescens, "Protogrammoceras (Protogrammoceras) cf. celebratum" = Fuciniceras celebratum
"Oregonites cf. imlayi" = Canavaria ammonite
"Protogrammoceras (Matteiceras) cf. nitescens" = Fuciniceras (Matteiceras) nitescens Young and Bird 1828 ammonite
"Protogrammoceras (Protogrammoceras) cf. celebratum" = Fuciniceras celebratum Fucini 1900 ammonite
 Ammonitida - Liparoceratidae
Amaltheus subnodosus, Amaltheus cf. stokesi, Amaltheus margaritatus
Amaltheus subnodosus Young and Bird 1828 ammonite
Amaltheus cf. stokesi Sowerby 1818 ammonite
Amaltheus margaritatus de Montford 1808 ammonite