Extinct genus of dinosaurs
Achillesaurus Temporal range: Santonian
~
85 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Illustration
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade :
Dinosauria
Clade :
Saurischia
Clade :
Theropoda
Genus:
† Achillesaurus
Species:
†A. manazzonei
Binomial name
† Achillesaurus manazzonei Martinelli & Vera 2007
Achillesaurus is a genus of alvarezsaurid theropod dinosaur from the Santonian-age Upper Cretaceous Bajo de la Carpa Formation of Rio Negro, Argentina. It was named in reference to Achilles' heel, because diagnostic features are found there for these animals. The genus was a relatively large, basal alvarezsaurid, and a contemporary of Alvarezsaurus . Achillesaurus is based on MACN-PV-RN 1116, a partial skeleton including a sacral vertebra, four tail vertebrae, part of the left thighbone, shin and foot, and the left ilium. Agustín Martinelli and Ezequiel Vera, who described the specimen, performed a phylogenetic analysis and found their new genus to be an alvarezsaurid with an unresolved relationship to Alvarezsaurus and more derived alvarezsaurids.[1] Makovicky, Apesteguía & Gianechini (2012) argued that Achillesaurus might actually be a junior synonym of Alvarezsaurus which, according to the authors, "is known from the same formation and from which it [i.e. Achillesaurus ] differs trivially."[2]
^ Martinelli, A.G.; Vera, E.I. (2007). "Achillesaurus manazzonei , a new alvarezsaurid theropod (Dinosauria) from the Late Cretaceous Bajo de la Carpa Formation, Río Negro Province, Argentina". Zootaxa . 1582 : 1–17. doi:10.11646/zootaxa.1582.1.1.
^ Makovicky, P.J.; Apesteguía, S.N.; Gianechini, F.A. (2012). "A New Coelurosaurian Theropod from the La Buitrera Fossil Locality of Río Negro, Argentina". Fieldiana Life and Earth Sciences . 5 : 90–98. doi:10.3158/2158-5520-5.1.90. S2CID 129758444.
Last Update: 2024-04-23T15:01:15Z
formation and from which it [i.e. Achillesaurus ] differs trivially." Martinelli, A.G.; Vera, E.I. (2007). "Achillesaurus manazzonei, a new alvarezsaurid...
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1991 Type species †Alvarezsaurus calvoi Bonaparte, 1991 Subgroups †Achillesaurus ? †Alvarezsaurus †Bradycneme †Heptasteornis †Patagonykinae? †Bonapartenykus...
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Achillesaurus Alvarezsauridae...
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†Achillesaurus †Patagonykus...
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Last Update: 2024-04-24T18:13:47Z
Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Last Update: 2024-04-27T04:17:45Z
Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Last Update: 2024-03-26T11:38:57Z
Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Achillesaurus Patagonykus...
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Last Update: 2024-03-19T04:51:29Z
Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Last Update: 2024-04-23T11:22:55Z
Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Achillesaurus Alvarezsauridae...
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Last Update: 2024-04-21T18:06:52Z
Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
Word Count : 1679
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Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
Word Count : 1188
Last Update: 2024-04-21T18:14:21Z
Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
Word Count : 797
Last Update: 2024-04-21T18:45:13Z
Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
Word Count : 774
Last Update: 2024-05-14T17:42:23Z
Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
Word Count : 436
Last Update: 2024-05-26T11:48:36Z
Achillesaurus Aorun? Bannykus Bonapartenykus Haplocheirus Patagonykus Shishugounykus Tugulusaurus? Xiyunykus Alvarezsauridae...
Word Count : 519