Sauropod haemal arches: morphotypes, new classification and phylogenetic aspects

@article{Otero2011SauropodHA,
  title={Sauropod haemal arches: morphotypes, new classification and phylogenetic aspects},
  author={A. Otero and P. A. Gallina and J. I. Canale and Alejandro Haluza},
  journal={Historical Biology},
  year={2011},
  volume={24},
  pages={243 - 256}
}
Sauropod haemal arches are caudal bony structures that have been traditionally incorporated into two different types observed in different anatomical views: Y-shaped (anterior view) and forked (lateral view). This research proposes a classification combining information observed in anterior and lateral views. Four types of ‘Y-shaped’ and six types of ‘V-shaped’ chevrons were recognised. Complete chevron series in some eusauropods allows the comparison of topological equivalent structures along… Expand
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