- Age calibration of the lower ordovician Fezouata Lagerstätte, MoroccoLefebvre, Bertrand; Gutiérrez-Marco, Juan C.; Lehnert, Oliver; Martin, Emmanuel L.O.; Nowak, Hendrik; Akodad, Mustapha; El Hariri, Khadija; Servais, ThomasLethaia2018 / p. 296 - 311 https://doi.org/10.1111/let.12240 https://www.scopus.com/sourceid/13956 https://www.scopus.com/record/display.uri?eid=2-s2.0-85030090241&origin=inward&txGid=fd21defa7d19675061b940092f2bdf28 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=LETHAIA&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000428449700014
- Conodonts from the Lower Ordovician of Morocco - contributions to age and faunal diversity of the Fezouata Lagerstätte and peri-Gondwana biogeographyLehnert, Oliver; Nowak, Hendrik; Sarmiento, Graciela N.; Gutierrez-Marco, Juan Carlos; Akodad, Mustapha; Servais, ThomasPalaeogeography, palaeoclimatology, palaeoecology2016 / p. 50-61 : ill https://doi.org/10.1016/j.palaeo.2016.03.023 https://www.scopus.com/sourceid/13985 https://www.scopus.com/record/display.uri?eid=2-s2.0-84963568694&origin=inward&txGid=47df2a251400ae2fca2f5beb93bcae84 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=PALAEOGEOGR%20PALAEOCL&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:000383296200005