Rytel, A., Surmik, D., Szczygielski, T., Spiekman, S.N.F., Van de Kamp, T., Zuber, M., Scheyer, T.M., 2024. Unique internal anatomy of vertebrae as a key factor for neck elongation in Triassic archosauromorphs. Zoological Journal of the Linnean Society 202(3): zlae126. https://doi.org/10.1093/zoolinnean/zlae126
Spiekman, S.N.F., Butler, R.J., Maidment, S.C.R., 2024. The postcranial anatomy and osteohistology of Terrestrisuchus gracilis (Archosauria, Crocodylomorpha) from the Late Triassic of Wales. Papers in Palaeontology 10(4): e1577. https://doi.org/10.1002/spp2.1577
Sues, H.-D., Spiekman, S.N.F., Schoch, R.R., 2024. Osteology and phylogenetic relationships of a new archosauriform reptile from the early Middle Triassic (Anisian) of Germany. Journal of Vertebrate Paleontology: 43(6): e2357326. https://doi.org/10.1080/02724634.2024.2357326
Rytel, A., Böhmer, C., Spiekman, S.N.F., Tałanda, M., 2024. Extreme neck elongation evolved despite strong developmental constraints in bizarre Triassic reptiles — implications for neck modularity in archosaurs. Royal Society Open Science 11: 240233. doi.org/10.1098/rsos.240233
Spiekman, S.N.F., Ezcurra, M.D., Rytel, A., Wang, W., Mujal, E., Buchwitz, M., Schoch, R.R., 2024. A redescription of Trachelosaurus fischeri from the Buntsandstein (Middle Triassic) of Bernburg, Germany: the first European Dinocephalosaurus-like marine reptile and its systematic implications for long-necked early archosauromorphs. Swiss Journal of Palaeontology 143(10). https://doi.org/10.1186/s13358-024-00309-6
Klug, C., Spiekman, S.N.F., Bastiaans, D., Scheffold, B., Scheyer, T.M., 2024. The marine conservation deposits of Monte San Giorgio (Switzerland, Italy) – the prototype of Triassic black shale Lagerstätten. Swiss Journal of Palaeontology 143(10). https://doi.org/10.1186/s13358-024-00308-7
Spiekman, S.N.F., Wang, W., Zhao, L., Rieppel, O., Fraser, N.C., Chun, L., 2024. Dinocephalosaurus orientalis Li, 2003: a remarkable marine archosauromorph from the Middle Triassic of Southwestern China. Earth and Environmental Science Transactions of the Royal Society of Edinburgh 114(3-4): 218-250. https://doi.org/10.1017/S175569102400001X