A basal ichthyosauriform with a short snout from the Lower Triassic of China

@article{Motani2015ABI,
  title={A basal ichthyosauriform with a short snout from the Lower Triassic of China},
  author={Ryosuke Motani and Da-yong Jiang and Guan-bao Chen and Andrea Tintori and Olivier Rieppel and Cheng Ji and Jian-dong Huang},
  journal={Nature},
  year={2015},
  volume={517},
  pages={485-488}
}
The incompleteness of the fossil record obscures the origin of many of the more derived clades of vertebrates. One such group is the Ichthyopterygia, a clade of obligatory marine reptiles that appeared in the Early Triassic epoch, without any known intermediates. Here we describe a basal ichthyosauriform from the upper Lower Triassic (about 248 million years ago) of China, whose primitive skeleton indicates possible amphibious habits. It is smaller than ichthyopterygians and had unusually large… 

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