Cranial material from a new genus (Ramphastosula) of Sulidae is described. The material comes from the Early–Lower Pliocene of the Pisco Formation of the central-southern coast of Peru. The skulls are characterized by (1) remarkable convex curvature of the dorsal surface and straight ventral surface of the rostrum, only with a curvature on the third anterior part and the tip of the bill; (2) well developed occipital and temporal regions; (3) broad opisthotic process projecting to the level of postorbital processes; (4) broad temporal fossa, and (5) flat braincase and robust frontal region.
|Original language||American English|
|Number of pages||5|
|Journal||Journal of Vertebrate Paleontology|
|State||Published - 10 Dec 2004|
Stucchi, M., & Urbina, M. (2004). Ramphastosula (Aves, Sulidae): A new genus from the early pliocene of the pisco formation, peru. Journal of Vertebrate Paleontology, 24(4), 974-978. https://doi.org/10.1671/0272-4634(2004)024[0974:RASANG]2.0.CO;2