• 2011: Diploma Geology/Palaeontologye, Rheinische Friedrich-Wilhelms Universität Bonn, Germany
• 2020: PhD in Biology in cooperation of the Ruhr-Universität Bochum and the Rheinische Friedrich-Wilhelms Universität Bonn, Germany

• 2005: Excavation of the Senckenbergischen Naturforschenden Gesellschaft, Forschungsstation Grube Messel, UNESCO world heritage site, Germany
• 2007: Diploma mapping project in Yichang, Hubei Province, China in cooperation with the Yichang Institute of Geology and Mineral Resources, Yichang, China
• 2008: Excavation in Winterswijk, The Netherlands in cooperation with the Museum of Natural History Naturalis, Leiden, The Netherlands and the Rheinische Friedrich-Wilhelms Universität Bonn, Germany
• 2009: collection internship at the Staatliches Museum für Naturkunde in Stuttgart (SMNS), Germany

I am a geologist and paleontologist, who combined Paleontology, Comparative Anatomy, and Engineering Sciences in my Phd in Biology. My research focus lies on the histological, morphological, and functional adaptations of the postcranium of secondary aquatic marine reptiles. I am interested in extinct as well as in extant marine reptiles. I study how sea turtles swim and to what extend they can help to inform us on swimming of extinct Sauropterygia, to which e.g., the Plesiosauria belong.

Krahl A, Klein N, Sander PM. 2013. Evolutionary implications of the divergent long bone histologies of Nothosaurus and Pistosaurus (Sauropterygia, Triassic). BMC Evolutionary Biology 13:123.http://www.biomedcentral.com/1471-2148/13/123/abstract

Klein N, Sander PM, Krahl A, Scheyer TM, Houssaye A. 2016. Diverse aquatic adaptations in Nothosaurus spp. (Sauropterygia) – Inferences from humeral histology and microanatomy. PloS ONE 11(7): e0158448. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0158448

Krahl A, Lipphaus A, Sander, MP, Maffucci F, Hochscheid S. 2019. Humerus osteology, myology, and finite element structure analysis of Cheloniidae. The Anatomical Record: https://doi.org/10.1002/ar.24311

Krahl A. 2021. The locomotory apparatus and paraxial swimming in fossil and living marine reptiles: comparing Nothosauroidea, Plesiosauria, and Chelonioidea. Pal-Z Paläontologische Zeitschrift (accepted).

Krahl, A. 2019. Underwater flight in sea turtles and plesiosaurs: Dissection, muscle reconstructions, analog models, and finite element structure analyses inform on flipper twisting and muscle forces in plesiosaurs. Dissertation, Mathematisch-Naturwissenschaftliche Fakultät der Rheinischen Friedrich-Wilhelms-Universität Bonn, 1–311. https://nbn-resolving.org/urn:nbn:de:hbz:5-59143.

Krahl A. Wie schreibe ich eine Bachelorarbeit? 2014. http://www.steinmann.uni-bonn.de/institut/bereiche/palaeontologie/arbeitsgruppen/wirbeltierpalaeontologie

Krahl A, Sander PM. 2016. Course Notes, Osteology of the Tetrapods: Non-mammalian Tetrapods; Part of Module M 60/OEP 35, Vertebrate Paleontology I. 24 p.