| 1. | He later finds a " Hesperornis " rookery amongst the rocky shoreline.
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| 2. | The first " Hesperornis " specimen was discovered in 1871 by Othniel Charles Marsh.
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| 3. | It is the only species of " Hesperornis " for which a nearly complete skull is known.
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| 4. | Like loons, " Hesperornis " were probably excellent foot-propelled divers, but ungainly on land.
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| 5. | The " Hesperornis " lineage may have derived even sooner or possibly independently from the ancestors of modern birds.
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| 6. | Locations for " Hesperornis " fossils include the Late Cretaceous marine limestones from Kansas and the marine shales from Canada.
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| 7. | Among these, it belonged to the Hesperornithidae, along with " Hesperornis ", the well-known namesake genus.
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| 8. | Later as Nick Cutter swims through the anomaly he finds himself in a tropical sea with a flock of " Hesperornis " swimming around him.
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| 9. | Alternately, some researchers have used Ornithurae to refer to a more restrictive node-based clade, anchored on " Hesperornis " and modern birds.
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| 10. | The teeth of " Hesperornis " were present along nearly the entire lower jaw ( dentary ) and the back of the upper jaw ( maxilla ).
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