Alacaagzi Formation-Asma Member (Carboniferous of Turkey)

Where: Turkey (41.5° N, 39.8° E: paleocoordinates 41.5° N, 39.8° E)

• coordinate based on nearby landmark

When: Carboniferous (358.9 - 298.9 Ma)

• Possible range in age for this member is from mid-Namurian to early late-Namurian based on spore content.

Environment/lithology: sandstone

• Predominantly a sandy unit, basal boundary being marked by the appearance of erosional channel-fill sequences.

Preservation: mold/impression

Collection methods: The entire formation consists of a succession of mudstones, siltstones, and thin sandstones whcih constitutes a broadly coarsening upwards fluvially dominated deltaic sequence. General thickness is 600m.

Primary reference: I.E. Kerey, G. Kelling, and R.H. Wagner. 1985. An outline stratigraphy and palaeobotanical records from the middle Carboniferous rocks of northwestern Turkey. Extrait des Annales de la Societe Geologique du Nord 203-216 [R. Gastaldo/J. Allen/J. Allen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 27823: authorized by Robert Gastaldo, entered by Jonathan Allen on 14.01.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Stigmaria ficoides
Stigmaria ficoides Sternberg 1822
 Lepidodendrales - Lepidodendraceae
Lepidodendron sp. Sternberg 1820
cf. L. rimosum
Lepidodendron sp. Sternberg 1820