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- Apatornis abstract "Apatornis is a genus of prehistoric birds endemic to North America during the late Cretaceous. It currently contains a single species, Apatornis celer, which lived around the Santonian-Campanian boundary, dated to about 83.5 million years ago. The remains of this species were found in the Smoky Hill Chalk of the Niobrara Formation in Kansas, United States. It is known from a single fossil specimen: a synsacrum, the fused series of vertebrae over the hips. While the known fossil remans are very incomplete, enough has been found to reasonably estimate that the body length of this bird was between 7–8 inches (18–20 cm).The type specimen of A. celer, YPM 1451, was reportedly discovered by Othniel Charles Marsh in October of 1872 at Butte Creek in Logan County, Kansas. This location is now recognized as falling between Marker Units 15 and 19 of the Smoky Hill Chalk geological formation. An additional, more complete specimen had also been referred to Apatornis celer by Marsh. This more complete specimen had historically been the one used almost exclusively to form the basis of what was known about Apatornis. However, Julia Clarke noted in 2004 that because the second specimen did not preserve any of the same bones as the first, the two could not be scientifically compared. Clarke therefore reclassified the second specimen as its own genus and species, Iaceornis marshi.".
- Apatornis thumbnail Apatornis.jpg?width=300.
- Apatornis wikiPageID "13838413".
- Apatornis wikiPageRevisionID "589138158".
- Apatornis displayParents "4".
- Apatornis fossilRange "Late Cretaceous,".
- Apatornis genus "Apatornis".
- Apatornis grandparentAuthority "Fürbringer, 1888".
- Apatornis greatgrandparentAuthority "Martin, 1991".
- Apatornis hasPhotoCollection Apatornis.
- Apatornis imageCaption "Holotype of A. celer".
- Apatornis imageWidth "250".
- Apatornis name "Apatornis".
- Apatornis parentAuthority "Marsh, 1873b".
- Apatornis species "celer".
- Apatornis synonyms "Ichthyornis celer (Marsh, 1873a)".
- Apatornis subject Category:Anseriformes.
- Apatornis subject Category:Bird_genera.
- Apatornis subject Category:Carinatae.
- Apatornis subject Category:Cretaceous_birds.
- Apatornis subject Category:Prehistoric_birds_of_North_America.
- Apatornis type Animal100015388.
- Apatornis type Bird101503061.
- Apatornis type Chordate101466257.
- Apatornis type CretaceousBirds.
- Apatornis type LivingThing100004258.
- Apatornis type Object100002684.
- Apatornis type Organism100004475.
- Apatornis type PhysicalEntity100001930.
- Apatornis type PrehistoricBirdsOfNorthAmerica.
- Apatornis type Vertebrate101471682.
- Apatornis type Whole100003553.
- Apatornis comment "Apatornis is a genus of prehistoric birds endemic to North America during the late Cretaceous. It currently contains a single species, Apatornis celer, which lived around the Santonian-Campanian boundary, dated to about 83.5 million years ago. The remains of this species were found in the Smoky Hill Chalk of the Niobrara Formation in Kansas, United States. It is known from a single fossil specimen: a synsacrum, the fused series of vertebrae over the hips.".
- Apatornis label "Apatornis".
- Apatornis sameAs m.03ckwpf.
- Apatornis sameAs Q4779241.
- Apatornis sameAs Q4779241.
- Apatornis sameAs Apatornis.
- Apatornis wasDerivedFrom Apatornis?oldid=589138158.
- Apatornis depiction Apatornis.jpg.
- Apatornis isPrimaryTopicOf Apatornis.