Caruthers, A., Smith, P., & Gröcke, D. (2013). The Pliensbachian–Toarcian (Early Jurassic) extinction, a global multi-phased event. Palaeogeography, Palaeoclimatology, Palaeoecology, 386, 104-118. https://doi.org/10.1016/j.palaeo.2013.05.010