@article{d007ecfec81841c29296f0442cb63177,
title = "Two abnormal pygidia of the trilobite Toxochasmops from the Upper Ordovician of the Oslo Region, Norway",
keywords = "Abnormalities, teratology, injury, metaplasia, Toxochasmops, trilobites, Katian, Ordovician, Oslo Region, Norway",
author = "Nielsen, {Morten Lunde} and Nielsen, {Arne Thorshoj}",
year = "2017",
language = "English",
volume = "65",
pages = "171--175",
journal = "Bulletin of the Geological Society of Denmark",
issn = "2245-7070",
publisher = "Dansk Geologisk Forening",
}