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| == Paleoenvironment == | == Paleoenvironment == | ||
| ''Sachicasaurus'' is one of four pliosaurids from the Paja Formation, others being '']'',<ref name=GomezNoe2017>Gómez Pérez & Noè, 2017</ref> '']'',<ref name=Paramo2016>Páramo ''et al.'', 2016</ref> and '']''.<ref name=NG21>{{Cite journal|last1=Noè|first1=L.F.|last2=Gómez-Pérez|first2=M.|year=2021|title=Giant pliosaurids (Sauropterygia; Plesiosauria) from the Lower Cretaceous peri-Gondwanan seas of Colombia and Australia|journal=Cretaceous Research|doi=10.1016/j.cretres.2021.105122}}</ref> It is also contemporaneous with the elasmosaurids '']'' and '']'',<ref name=Paramo2019>Páramo Fonseca ''et al.'', 2019</ref> the marine turtle '']'',<ref name=Cadena2015a>Cadena ''et al.'', 2015a</ref> the sandowniid turtle '']'',<ref name=Cadena2015b>Cadena ''et al.'', 2015b</ref> and the ophthalmosaurid ichthyosaurs '']'' and '']''.<ref name=Maxwell2015>Maxwell ''et al.'', 2015</ref><ref name=KS21>{{cite journal |last1=Cortés |first1=D. |last2=Maxwell |first2=E.E. |last3=Larsson |first3=H.C.E. |year=2021 |title=Re-appearance of hypercarnivore ichthyosaurs in the Cretaceous with differentiated dentition: revision of ''Platypterygius sachicarum'' (Reptilia:Ichthyosauria, Ophthalmosauridae) from Colombia |journal=Journal of Systematic Palaeontology|pages= |
''Sachicasaurus'' is one of four pliosaurids from the Paja Formation, others being '']'',<ref name=GomezNoe2017>Gómez Pérez & Noè, 2017</ref> '']'',<ref name=Paramo2016>Páramo ''et al.'', 2016</ref> and '']''.<ref name=NG21>{{Cite journal|last1=Noè|first1=L.F.|last2=Gómez-Pérez|first2=M.|year=2021|title=Giant pliosaurids (Sauropterygia; Plesiosauria) from the Lower Cretaceous peri-Gondwanan seas of Colombia and Australia|journal=Cretaceous Research|volume=132|page=105122|doi=10.1016/j.cretres.2021.105122}}</ref> It is also contemporaneous with the elasmosaurids '']'' and '']'',<ref name=Paramo2019>Páramo Fonseca ''et al.'', 2019</ref> the marine turtle '']'',<ref name=Cadena2015a>Cadena ''et al.'', 2015a</ref> the sandowniid turtle '']'',<ref name=Cadena2015b>Cadena ''et al.'', 2015b</ref> and the ophthalmosaurid ichthyosaurs '']'' and '']''.<ref name=Maxwell2015>Maxwell ''et al.'', 2015</ref><ref name=KS21>{{cite journal |last1=Cortés |first1=D. |last2=Maxwell |first2=E.E. |last3=Larsson |first3=H.C.E. |year=2021 |title=Re-appearance of hypercarnivore ichthyosaurs in the Cretaceous with differentiated dentition: revision of ''Platypterygius sachicarum'' (Reptilia:Ichthyosauria, Ophthalmosauridae) from Colombia |journal=Journal of Systematic Palaeontology|volume=19 |issue=14 |pages=969–1002 |doi= 10.1080/14772019.2021.1989507|s2cid=244512087 }}</ref> | ||
| == References == | == References == | ||
Revision as of 10:19, 22 January 2022
Extinct genus of pliosaurid
| Sachicasaurus Temporal range: Barremian ~130–120 Ma PreꞒ Ꞓ O S D C P T J K Pg N | |
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| Holotype specimen of Sachicasaurus. | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | †Sauropterygia |
| Order: | †Plesiosauria |
| Family: | †Pliosauridae |
| Subfamily: | †Brachaucheninae |
| Genus: | †Sachicasaurus |
| Species: | †S. vitae |
| Binomial name | |
| †Sachicasaurus vitae Páramo Fonseca et al., 2019 | |
Sachicasaurus is an extinct genus of brachauchenine pliosaurid known from the Barremian of the Paja Formation, Altiplano Cundiboyacense in the Colombian Eastern Ranges of the Andes. The type species is S. vitae.
Etymology
The genus name Sachicasaurus refers to Sáchica, the village where the fossil was found, and saurus, meaning "lizard" in Greek. The species epithet vitae, meaning "life" in Latin, was chosen because of the life in Sáchica the fossil find has sparked.
Description
The holotype specimen, MP111209-1, is known from a near complete skull, and postcranial elements including a complete hindlimb and various vertebrae. Diagnostic features include a very short mandibular symphysis, reduced number of mandibular teeth (17 to 18 versus 25 to 40 in other pliosaurids), slender teeth, among other features. The specimen has an estimated length of almost 10 metres (33 ft). The specimen is interpreted as a sub-adult individual.
Paleoenvironment
Sachicasaurus is one of four pliosaurids from the Paja Formation, others being Acostasaurus, Stenorhynchosaurus, and Monquirasaurus. It is also contemporaneous with the elasmosaurids Callawayasaurus and Leivanectes, the marine turtle Desmatochelys padillai, the sandowniid turtle Leyvachelys, and the ophthalmosaurid ichthyosaurs Muiscasaurus and Kyhytysuka.
References
- Páramo Fonseca et al., 2018, p.225
- ^ Páramo Fonseca et al., 2018, p.226
- Páramo Fonseca et al., 2018, p.232
- Páramo Fonseca et al., 2018, p.224
- Gómez Pérez & Noè, 2017
- Páramo et al., 2016
- Noè, L.F.; Gómez-Pérez, M. (2021). "Giant pliosaurids (Sauropterygia; Plesiosauria) from the Lower Cretaceous peri-Gondwanan seas of Colombia and Australia". Cretaceous Research. 132: 105122. doi:10.1016/j.cretres.2021.105122.
- Páramo Fonseca et al., 2019
- Cadena et al., 2015a
- Cadena et al., 2015b
- Maxwell et al., 2015
- Cortés, D.; Maxwell, E.E.; Larsson, H.C.E. (2021). "Re-appearance of hypercarnivore ichthyosaurs in the Cretaceous with differentiated dentition: revision of Platypterygius sachicarum (Reptilia:Ichthyosauria, Ophthalmosauridae) from Colombia". Journal of Systematic Palaeontology. 19 (14): 969–1002. doi:10.1080/14772019.2021.1989507. S2CID 244512087.
Bibliography
- Sachicasaurus
- Other paleofauna
- Template:Cite LSA
- Template:Cite LSA
- Template:Cite LSA
- Template:Cite LSA
- Template:Cite LSA
- Template:Cite LSA
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| Sachicasaurus | |