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==[[http://en.wikipedia.org/w/index.php?title=Appalachiosaurus&action=edit&section=1 edit]] Name==
 
==[[http://en.wikipedia.org/w/index.php?title=Appalachiosaurus&action=edit&section=1 edit]] Name==
 
This dinosaur was named after the region of the central [http://en.wikipedia.org/wiki/United_States United States] known as [http://en.wikipedia.org/wiki/Appalachia Appalachia], which also gave its name to the [http://en.wikipedia.org/wiki/Appalachia_%28Mesozoic%29 ancient island continent] on which ''Appalachiosaurus'' lived. Both are named after the [http://en.wikipedia.org/wiki/Appalachian_Mountains Appalachian Mountains]. The generic name also includes the [http://en.wikipedia.org/wiki/Ancient_Greek Greek] word ''sauros'' ("lizard"), the most common suffix used in dinosaur names. There is one known [http://en.wikipedia.org/wiki/Species species], ''A. montgomeriensis'', which is named after [http://en.wikipedia.org/wiki/Montgomery_County,_Alabama Montgomery County] in the U.S. state of [http://en.wikipedia.org/wiki/Alabama Alabama]. Both genus and species were named in 2005 by [http://en.wikipedia.org/wiki/Paleontologist paleontologists] [http://en.wikipedia.org/wiki/Thomas_Carr_%28paleontologist%29 Thomas Carr], [http://en.wikipedia.org/w/index.php?title=Thomas_Williamson_%28paleontologist%29&action=edit&redlink=1 Thomas Williamson], and [http://en.wikipedia.org/w/index.php?title=David_Schwimmer_%28paleontologist%29&action=edit&redlink=1 David Schwimmer] (who is not to be confused with the [http://en.wikipedia.org/wiki/David_Schwimmer actor of the same name]).
 
This dinosaur was named after the region of the central [http://en.wikipedia.org/wiki/United_States United States] known as [http://en.wikipedia.org/wiki/Appalachia Appalachia], which also gave its name to the [http://en.wikipedia.org/wiki/Appalachia_%28Mesozoic%29 ancient island continent] on which ''Appalachiosaurus'' lived. Both are named after the [http://en.wikipedia.org/wiki/Appalachian_Mountains Appalachian Mountains]. The generic name also includes the [http://en.wikipedia.org/wiki/Ancient_Greek Greek] word ''sauros'' ("lizard"), the most common suffix used in dinosaur names. There is one known [http://en.wikipedia.org/wiki/Species species], ''A. montgomeriensis'', which is named after [http://en.wikipedia.org/wiki/Montgomery_County,_Alabama Montgomery County] in the U.S. state of [http://en.wikipedia.org/wiki/Alabama Alabama]. Both genus and species were named in 2005 by [http://en.wikipedia.org/wiki/Paleontologist paleontologists] [http://en.wikipedia.org/wiki/Thomas_Carr_%28paleontologist%29 Thomas Carr], [http://en.wikipedia.org/w/index.php?title=Thomas_Williamson_%28paleontologist%29&action=edit&redlink=1 Thomas Williamson], and [http://en.wikipedia.org/w/index.php?title=David_Schwimmer_%28paleontologist%29&action=edit&redlink=1 David Schwimmer] (who is not to be confused with the [http://en.wikipedia.org/wiki/David_Schwimmer actor of the same name]).
==Description==
+
==Description, Movies and TV Series==
 
''Appalachiosaurus'' is so far known from only partial remains, including parts of the [http://en.wikipedia.org/wiki/Skull skull] and [http://en.wikipedia.org/wiki/Mandible mandible] (lower jaw), as well as several [http://en.wikipedia.org/wiki/Vertebra vertebrae], parts of the [http://en.wikipedia.org/wiki/Pelvis pelvis], and most of both hindlimbs. These remains are housed at the [http://en.wikipedia.org/wiki/McWane_Science_Center McWane Science Center] in [http://en.wikipedia.org/wiki/Birmingham,_Alabama Birmingham, Alabama]. There are several open [http://en.wikipedia.org/wiki/Cranial_sutures sutures] between bones of the skull, indicating that the animal was not an adult. Several elements are crushed, but the specimen is still informative and shows many unique characteristics, or [http://en.wikipedia.org/wiki/Apomorphy apomorphies]. Several of these apomorphies have been identified in the skull, and the claws of the feet show an unusual protrusion on the end closest to the body. A row of six low crests lines the top of the snout, similar to the [http://en.wikipedia.org/wiki/Asia Asian] ''[http://en.wikipedia.org/wiki/Alioramus Alioramus]'', although most tyrannosaur species exhibit ornamentation to varying degrees on top of the snout. ''Appalachiosaurus'' is significantly different and more derived than another early tyrannosaur from eastern North America, ''[http://en.wikipedia.org/wiki/Dryptosaurus Dryptosaurus]''.
 
''Appalachiosaurus'' is so far known from only partial remains, including parts of the [http://en.wikipedia.org/wiki/Skull skull] and [http://en.wikipedia.org/wiki/Mandible mandible] (lower jaw), as well as several [http://en.wikipedia.org/wiki/Vertebra vertebrae], parts of the [http://en.wikipedia.org/wiki/Pelvis pelvis], and most of both hindlimbs. These remains are housed at the [http://en.wikipedia.org/wiki/McWane_Science_Center McWane Science Center] in [http://en.wikipedia.org/wiki/Birmingham,_Alabama Birmingham, Alabama]. There are several open [http://en.wikipedia.org/wiki/Cranial_sutures sutures] between bones of the skull, indicating that the animal was not an adult. Several elements are crushed, but the specimen is still informative and shows many unique characteristics, or [http://en.wikipedia.org/wiki/Apomorphy apomorphies]. Several of these apomorphies have been identified in the skull, and the claws of the feet show an unusual protrusion on the end closest to the body. A row of six low crests lines the top of the snout, similar to the [http://en.wikipedia.org/wiki/Asia Asian] ''[http://en.wikipedia.org/wiki/Alioramus Alioramus]'', although most tyrannosaur species exhibit ornamentation to varying degrees on top of the snout. ''Appalachiosaurus'' is significantly different and more derived than another early tyrannosaur from eastern North America, ''[http://en.wikipedia.org/wiki/Dryptosaurus Dryptosaurus]''.
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<nowiki>-----------------------------------------------------------------------------------------------------------------</nowiki>
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The Land Before Time 15: The Legend of Alvin the Allosaurus (2015)
  +
  +
[[Dinosaur Train|''Dinosaur Train'']]'' ''(2009 - 2018)
 
==[[http://en.wikipedia.org/w/index.php?title=Appalachiosaurus&action=edit&section=3 edit]] Classification==
 
==[[http://en.wikipedia.org/w/index.php?title=Appalachiosaurus&action=edit&section=3 edit]] Classification==
 
The only known specimen ''Appalachiosaurus'' was complete enough to be included in phylogenetic analyses using [http://en.wikipedia.org/wiki/Cladistics cladistics]. The first was performed before the animal had had even been named, and found ''Appalachiosaurus'' to be a member of the albertosaurine subfamily of Tyrannosauridae, which also includes ''[http://en.wikipedia.org/wiki/Albertosaurus Albertosaurus]'' and ''[http://en.wikipedia.org/wiki/Gorgosaurus Gorgosaurus]''.<sup class="reference" id="cite_ref-holtz2004_1-0">[http://en.wikipedia.org/wiki/Appalachiosaurus#cite_note-holtz2004-1 [2]]</sup> The original description also included a cladistic analysis, finding ''A. montgomeriensis'' to be a [http://en.wikipedia.org/wiki/Basal_%28phylogenetics%29 basal] tyrannosauroid outside of Tyrannosauridae.<sup class="reference" id="cite_ref-carr2005_0-1">[http://en.wikipedia.org/wiki/Appalachiosaurus#cite_note-carr2005-0 [1]]</sup> However, Asian tyrannosaurs like ''Alioramus'', and ''[http://en.wikipedia.org/wiki/Alectrosaurus Alectrosaurus]'' were excluded, as was ''[http://en.wikipedia.org/wiki/Eotyrannus Eotyrannus]'' from [http://en.wikipedia.org/wiki/England England]. Earlier tyrannosaurs such as ''[http://en.wikipedia.org/wiki/Dilong_paradoxus Dilong]'' and ''[http://en.wikipedia.org/wiki/Guanlong Guanlong]'' had not been described at the time this analysis was performed. These exclusions may have a significant effect on the phylogeny. To date, no analysis has been published which includes all known tyrannosauroid taxa.
 
The only known specimen ''Appalachiosaurus'' was complete enough to be included in phylogenetic analyses using [http://en.wikipedia.org/wiki/Cladistics cladistics]. The first was performed before the animal had had even been named, and found ''Appalachiosaurus'' to be a member of the albertosaurine subfamily of Tyrannosauridae, which also includes ''[http://en.wikipedia.org/wiki/Albertosaurus Albertosaurus]'' and ''[http://en.wikipedia.org/wiki/Gorgosaurus Gorgosaurus]''.<sup class="reference" id="cite_ref-holtz2004_1-0">[http://en.wikipedia.org/wiki/Appalachiosaurus#cite_note-holtz2004-1 [2]]</sup> The original description also included a cladistic analysis, finding ''A. montgomeriensis'' to be a [http://en.wikipedia.org/wiki/Basal_%28phylogenetics%29 basal] tyrannosauroid outside of Tyrannosauridae.<sup class="reference" id="cite_ref-carr2005_0-1">[http://en.wikipedia.org/wiki/Appalachiosaurus#cite_note-carr2005-0 [1]]</sup> However, Asian tyrannosaurs like ''Alioramus'', and ''[http://en.wikipedia.org/wiki/Alectrosaurus Alectrosaurus]'' were excluded, as was ''[http://en.wikipedia.org/wiki/Eotyrannus Eotyrannus]'' from [http://en.wikipedia.org/wiki/England England]. Earlier tyrannosaurs such as ''[http://en.wikipedia.org/wiki/Dilong_paradoxus Dilong]'' and ''[http://en.wikipedia.org/wiki/Guanlong Guanlong]'' had not been described at the time this analysis was performed. These exclusions may have a significant effect on the phylogeny. To date, no analysis has been published which includes all known tyrannosauroid taxa.

Latest revision as of 21:44, February 16, 2019

Appalachiosaurus

Fossil range: Late Cretaceous, 77 million years ago

Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Dinosauria
Order: Saurischia
Suborder: Theropoda
Superfamily: Tyrannosauroidea
Genus: Appalachiosaurus

Carr et al., 2005

Species
  • A. montgomeriensis Carr et al., 2005 (type)
Appalachiosaurus

Life restoration of Appalachiosaurus.

Appalachiosaurus (pronounced /ˌæpəˌleɪtʃi.ɵˈsɔrəs/ ap-ə-LAY-chee-o-SAWR-əs, "Appalachian lizard") is a genus of tyrannosauroid theropod dinosaur from the Late Cretaceous Period of eastern North America. Like almost all theropods, it was a bipedal predator. Only a juvenile skeleton has been found, representing an animal over 7 meters (23 ft) long and weighing over 1.5 tons, which indicates an adult would have been even larger. This species is notable as the most completely known theropod from the eastern part of North America. The Appalachiosaurus was hunt the Siamodatankocephalalbertodromobivenator, the Alabaman duck-billed humanosaur and the Dacentruraboceniannaremimamtocephalosaurus, the Alabaman stegosaur humanosaur.

Fossils of Appalachiosaurus were found in central Alabama, from the Demopolis Chalk Formation. This formation dates to the middle of the Campanian stage of the Late Cretaceous, or around 77 to 72 million years ago.[1]

ContentsEdit

[hide]*1 Name

[edit] NameEdit

This dinosaur was named after the region of the central United States known as Appalachia, which also gave its name to the ancient island continent on which Appalachiosaurus lived. Both are named after the Appalachian Mountains. The generic name also includes the Greek word sauros ("lizard"), the most common suffix used in dinosaur names. There is one known species, A. montgomeriensis, which is named after Montgomery County in the U.S. state of Alabama. Both genus and species were named in 2005 by paleontologists Thomas Carr, Thomas Williamson, and David Schwimmer (who is not to be confused with the actor of the same name).

Description, Movies and TV SeriesEdit

Appalachiosaurus is so far known from only partial remains, including parts of the skull and mandible (lower jaw), as well as several vertebrae, parts of the pelvis, and most of both hindlimbs. These remains are housed at the McWane Science Center in Birmingham, Alabama. There are several open sutures between bones of the skull, indicating that the animal was not an adult. Several elements are crushed, but the specimen is still informative and shows many unique characteristics, or apomorphies. Several of these apomorphies have been identified in the skull, and the claws of the feet show an unusual protrusion on the end closest to the body. A row of six low crests lines the top of the snout, similar to the Asian Alioramus, although most tyrannosaur species exhibit ornamentation to varying degrees on top of the snout. Appalachiosaurus is significantly different and more derived than another early tyrannosaur from eastern North America, Dryptosaurus.

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The Land Before Time 15: The Legend of Alvin the Allosaurus (2015)

Dinosaur Train (2009 - 2018)

[edit] ClassificationEdit

The only known specimen Appalachiosaurus was complete enough to be included in phylogenetic analyses using cladistics. The first was performed before the animal had had even been named, and found Appalachiosaurus to be a member of the albertosaurine subfamily of Tyrannosauridae, which also includes Albertosaurus and Gorgosaurus.[2] The original description also included a cladistic analysis, finding A. montgomeriensis to be a basal tyrannosauroid outside of Tyrannosauridae.[1] However, Asian tyrannosaurs like Alioramus, and Alectrosaurus were excluded, as was Eotyrannus from England. Earlier tyrannosaurs such as Dilong and Guanlong had not been described at the time this analysis was performed. These exclusions may have a significant effect on the phylogeny. To date, no analysis has been published which includes all known tyrannosauroid taxa.

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