A Late Devonian (Frasnian) bryozoan fauna from central Iran

作者：Ernst Andrej^*; Koenigshof Peter; Bahrami Ali; Yazdi Mehdi; Boncheva Iliana

来源：Palaeobiodiversity and Palaeoenvironments, 2017, 97(3): 541-552.

DOI：10.1007/s12549-016-0269-5

• Bryozoa
• Taxonomy
• Frasnian
• Central Iran
• Palaeogeography

A bryozoan fauna from the Late Devonian (Frasnian) of the Bahram Formation of the Zefreh section in central Iran contains four species: three trepostomes and one rhabdomesine cryptostome. Two species are new: the trepostome Coeloclemis zefrehensis sp. nov. and the rhabdomesine cryptostome Euthyrhombopora tenuis sp. nov. The trepostome species Cyphotrypa definita Morozova, 1960 and Anomalotoechus ramosus Morozova, 1960 were recorded previously from the Upper Devonian (Frasnian) of the Kuznets Basin. The genera Coeloclemis and Euthyrhombo-pora are recorded from the Devonian for the first time. The fauna is dominated by the erect ramose Euthyrhombopora tenuis sp. nov., with rare occurrences of the massive Cyphotrypa definita Morozova, 1960. The bryozoans indicate low to moderate water energy environment of middle to outer ramp position.

• 出版日期2017-9