Principal characters of American pterodactyls

@article{MarshPrincipalCO,
  title={Principal characters of American pterodactyls},
  author={O. C. Marsh},
  journal={American Journal of Science},
  volume={s3-12},
  pages={479 - 480}
}
Pteranodon and beyond: the history of giant pterosaurs from 1870 onwards
CONIASAURUS OWEN, 1850 (REPTILIA: SQUAMATA), FROM THE UPPER CRETACEOUS NIOBRARA CHALK OF WESTERN KANSAS
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