Pamparaptor
Pamparaptor | |
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Life restoration
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | Theropoda |
Clade: | Paraves |
Family: | †Dromaeosauridae |
Genus: | †Pamparaptor Porfiri, Calvo & Santos, 2011 |
Type species | |
† Pamparaptor micros Porfiri, Calvo & Santos, 2011
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Pamparaptor (
Discovery
The type and only specimen of Pamparaptor was discovered in 2005 by a technician named Diego Rosales who was working for the Lake Barreales Paleontological Center (or CePaLB) at the National University of Comahue.[2] It was found at a locality called the “Baal Quarry”, which is an outcrop of the Portezuelo Formation dated to the late Turonian or early Coniacian.[1] The locality is on the northern shore of Lake Barreales Lake and about 90 kilometres (56 mi) northwest of the city of Neuquén.[2]
The specimen was reposited at the National University of Comahue and was given the designation MUCPv-1163. It consists of all three
The holotype specimen of Pamparaptor was first reported in the literature in 2007 by the same researchers who would later go on to describe it. The specimen bore some similarities to the contemporaneous taxon Neuquenraptor, but was much smaller. For those reasons, MUCPv-1163 was believed to be a juvenile or subadult specimen of Neuquenraptor.[3]
Pamparaptor was finally described as a new genus in a publication of the Annals of the Brazilian Academy of Sciences in 2010 by a team of researchers including Juan Porfiri, Jorge Calvo, and Domenica Dos Santos. The authors remarked in the paper that their description is brief, but explained that they are confident that the remains cannot belong to any pre-existing taxon known from the Portezuelo Formation.[2]
Description
Pamparaptor was a small
In their description of Pamparaptor, Porfiri and colleagues diagnose the genus as distinct from all other deinonychosaurs by the following
Classification
The discovery of Pamparaptor was originally reported in 2007 at a conference of the 23rd Argentine Conference of Vertebrate Paleontology by the same authors who would later describe it.
Pamparaptor is now believed to represent its own genus and has been distinguished from Neuquenraptor by the lack of a significant difference in the ratio between the sizes of the
Possible
In their description of the taxon, Porfiri and colleagues did not conduct a phylogenetic analysis. They stated that the incomplete nature of the holotype combined with the overall scarcity of
In 2018, Federico A. Gianechini, Peter J. Makovicky, Sebastián Apesteguía, and Ignacio Cerda published an osteological description of all remains referred to the genus
Paleoecology
Paleoenvironment
The
The Portezuelo Formation is primarily composed of yellow and red-brown
Contemporary fauna
Relatively few non-
The Baal Quarry locality is known for containing the holotype of Patagosuchus as well as the large
See also
References
- ^ a b c d Carrano, Matthew (2008). "Baal Quarry, Lago Barreales [MUCP] (Cretaceous of Argentina)". The Paleobiology Database.
Theropoda - Pamparaptor micros n. gen. n. sp., Porfiri et al. 2011, maniraptoran; MUCPv-1163, articulated left foot
- ^ PMID 21437378.
- ^ a b c Porfiri, Calvo, dos Santos and Valieri, 2007. New record of Neuquenraptor (Theropoda, Dromaeosauridae) from the Late Cretaceous of Patagonia. Ameghiniana. 44(S), 34R.
- ISBN 978-0691180311.
- doi:10.1139/e93-187.
- S2CID 2519726.
- ^ PMID 29607264.
- S2CID 8879023.
- .
- ^ a b c d Leanza, H.A.; Apesteguia, S.; Novas, F.E.; De la Fuente, M.S. (2004). "Cretaceous terrestrial beds from the Neuquén Basin (Argentina) and their tetrapod assemblages". Cretaceous Research. 25: 61–87. Retrieved 2019-02-16.
- .
- ]
- S2CID 4353732.
- ^ Calvo, J.O.; Porfiri, J.D.; Kellner, A.W. (2004). "On a new maniraptoran dinosaur (Theropoda) from the Upper Cretaceous of Neuquén, Patagonia, Argentina". Arq. Mus. Nacional. Rio de Janeiro. 62: 549–566.
- .