Shahmirzad Member 2, Elburz Mountains (Cambrian of Iran)

Where: Semnan, Iran (35.8° N, 53.3° E: paleocoordinates 35.8° N, 53.3° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: 2 Member (Mila Formation), Mayan (504.5 - 499.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified wackestone and lithified, calcareous shale

Size class: macrofossils

Primary reference: B. Hamdi, A. Y. Rozanov, and A. Y. Zhuravlev. 1995. Latest Middle Cambrian metazoan reef from northern Iran. Geological Magazine 132(4):367-373 [W. Kiessling/B. Bookhagen/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 22822: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 27.06.2002, edited by Britta Bookhagen and Uta Merkel

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Hormogoneae
 Oscillatoriales - Girvanellaceae
Girvanella sp.
Girvanella sp. Nicholson and Etheridge 1878
Demospongiae
 Lithistida - Anthaspidellidae
Rankenella hamdii n. sp.
Rankenella hamdii n. sp. Kruse and Zhuravlev 2008 demosponge
 Protomonaxonida - Hazeliidae
? Hazeliidae indet.
? Hazeliidae indet. De Laubenfels 1955 demosponge
Trilobita
 Ptychopariida - Proasaphiscidae
Lioparella sp., ? Proasaphiscus sp., Iranoleesia sp.
Lioparella sp. Kobayashi 1937 trilobite
? Proasaphiscus sp. Resser and Endo 1935 trilobite
Iranoleesia sp. King 1955 trilobite
indicative of a late Middle Cambrian age
 Asaphida - Anomocarellidae
Anomocarella sp.
Anomocarella sp. Walcott 1905 trilobite
 Corynexochida - Dorypygidae
Dorypyge khademi
Dorypyge khademi trilobite
subspecies khademi