Plesiosaurs and the repeated invasion of freshwater habitats: late-surviving relicts or evolutionary novelties?
January 9th, 2013 | 33
Time to talk about another recently published paper I was involved in: this time, the looooong awaited Journal of Systematic Palaeontology paper ‘A new leptocleidid (Sauropterygia, Plesiosauria) from the Vectis Formation (Early Barremian-early Aptian; Early Cretaceous) of the Isle of Wight and the evolution of Leptocleididae, a controversial clade’ (Benson et al. 2012a). Wow, what [...]Keep reading
October 24th, 2012 | 13
You’ve heard of plesiosaurs (and probably the short-necked plesiosaurs known vernacularly as pliosaurs). But unless you’re a palaeontologist or zoology uber-nerd, you might well not have heard of placodonts, pachypleurosaurs, nothosauroids and pistosaurids – the other lineages that, together with plesiosaurs, form Sauropterygia, a major clade of Mesozoic marine reptiles. Here’s a much-simplified cladogram showing [...]Keep reading