# Chilenosuchus

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Extinct genus of reptiles

Chilenosuchus Temporal range: Late Triassic ~235–201.6 Ma PreꞒ Ꞓ O S D C P T J K Pg N Scientific classification Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Pseudosuchia Order: †Aetosauria Family: †Stagonolepididae Genus: †Chilenosuchus Casamiquela 1980 Species †C. forttae Casamiquela 1980 (type)

***Chilenosuchus*** is an extinct [genus](/source/Genus) of [aetosaur](/source/Aetosaur). [Fossils](/source/Fossil) have been found in the [El Bordo Formation](https://en.wikipedia.org/w/index.php?title=El_Bordo_Formation&action=edit&redlink=1), in the [Antofagasta Region](/source/Antofagasta_Region) in northern [Chile](/source/Chile).[1]

## Description

The presence of *Chilenosuchus* in the beds that it was found in conflicts with the inferred age of the strata. Fossil plants and invertebrates suggest that it dates back to the late [Carboniferous](/source/Carboniferous) or [Early Permian](/source/Cisuralian),[2] yet *Chilenosuchus* is an aetosaur, and the first aetosaurs appeared in the [Late Triassic](/source/Late_Triassic). Poor-quality photographs of the original specimen and an apparent lack of substantial material could not allow for definite classification of the specimen, so there was initially much controversy as to whether or not the fossil was from a true aetosaur. However, a reevaluation in 2003 upon the relocation of the material showed that it was in fact an aetosaur and that the strata were of Triassic age.[3]

Based on similarities in the armour plating, *Chilenosuchus* seems to be closely related to *[Typothorax](/source/Typothorax)*. It has been proposed to be a member of a recently devised clade, [Typothoracisinae](/source/Typothoracisinae), along with *Typothorax* and several other similar aetosaurs.[4] However, because of the many other differences between it and other aetosaurs, the position of *Chilenosuchus* within [Stagonolepididae](/source/Stagonolepididae) will remain uncertain until more material can be found.

## References

- [Paleontology portal](https://en.wikipedia.org/wiki/Portal:Paleontology)

1. **[^](#cite_ref-1)** Casamiquela, R.M. (1980). "Nota sobre restos de un reptil aetosauroideo (Thecodontia, Aetosauria) de Quimal, Cordillera de Domeyko, Antofagasta. Prueba de la existencia del Neotriásico continental en los Andes del Norte de Chile". *In Congreso Argentino de Paleontología y Bioestratigrafía, No. 2 y Congreso Latinoamericano de Paleontología*. **1** (1): 135–142.

1. **[^](#cite_ref-2)** Breitkreuz, C.; Helmdach, F.; Kohring, R.; Mosbrugger, V. (1992). "Late Carboniferous intra-arc sediments in the north Chilean Andes: stratigraphy, paleogeography and paleoclimate". *Facies*. **26**: 67–80. [doi](/source/Doi_(identifier)):[10.1007/BF02539794](https://doi.org/10.1007%2FBF02539794). [S2CID](/source/S2CID_(identifier)) [140135835](https://api.semanticscholar.org/CorpusID:140135835).

1. **[^](#cite_ref-3)** Desojo, J. B. (2003). ["Redescripcion del aetosaurio *Chilenosuchus forttae* Casamiqueal (Diapsida: Arcosauria): presencia de Triásico continental en el norte de Chile"](https://doi.org/10.4067%2FS0716-02082003000100004). *Revista Geológica de Chile*. **30** (1): 53–63. [doi](/source/Doi_(identifier)):[10.4067/S0716-02082003000100004](https://doi.org/10.4067%2FS0716-02082003000100004).

1. **[^](#cite_ref-4)** Parker, W. G. (2003). Description of a new specimen of *Desmatosuchus haplocerus* from the Late Triassic of Northern Arizona. *Unpublished MS thesis. Northern Arizona University, Flagstaff*. 315 pp.[\[1\]](https://www.miketaylor.org.uk/dino/nm/Parker2003-thesis-chapter8.pdf)

v t e Aetosauria Kingdom: Animalia Phylum: Chordata Class: Sauropsida Clade: Pseudosuchia Clade: Aetosauriformes Pseudosuchia see Pseudosuchia Aetosauria see below↓ Aetosauria †Aetosauria Aetosauroides Stagonolepididae Aetosaurinae Aetosaurus Coahomasuchus? Stenomyti? Typothoracinae? Apachesuchus Chilenosuchus? Gorgetosuchus? Kryphioparma Redondasuchus Typothorax Paratypothoracini Garzapelta? Kocurypelta Kuttysuchus Paratypothorax Rioarribasuchus Tecovasuchus Venkatasuchus Desmatosuchia Stagonolepidinae? Polesinesuchus Stagonolepis Desmatosuchinae sensu lato Adamanasuchus? Aetobarbakinoides? Calyptosuchus? Chilenosuchus? Neoaetosauroides? Olkasuchus Scutarx? Desmatosuchini (Desmatosuchinae sensu stricto) Desmatosuchus Gorgetosuchus? Longosuchus Lucasuchus Sierritasuchus Category

Taxon identifiers Chilenosuchus Wikidata: Q860719 GBIF: 4818088 IRMNG: 1147688 Open Tree of Life: 4129438 Paleobiology Database: 347484

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Adapted from the Wikipedia article [Chilenosuchus](https://en.wikipedia.org/wiki/Chilenosuchus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Chilenosuchus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.