The Tablazo Formation is a Middle Pleistocene geologic

formation Formation may refer to: Linguistics * Back-formation, the process of creating a new lexeme by removing or affixes * Word formation, the creation of a new word by adding affixes Mathematics and science * Cave formation or speleothem, a secondar ...

of Santa Elena Province in western

Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Eku ...

. The

claystone Mudrocks are a class of fine-grained siliciclastic sedimentary rocks. The varying types of mudrocks include siltstone, claystone, mudstone, slate, and shale. Most of the particles of which the stone is composed are less than and are too sm ...

s and

sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) ...

s were deposited in an

estuarine An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environment ...

environment Environment most often refers to: __NOTOC__ * Natural environment, all living and non-living things occurring naturally * Biophysical environment, the physical and biological factors along with their chemical interactions that affect an organism or ...

.Tablazo Formation
at

Fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ...

.org

Fossil content

The formation has provided the following fossils: * '' Geochelone sp.''Cadena et al., 2017 * '' Eremotherium cf. laurillardi'' * '' Notiomastodon platensis'' (described as '' Haplomastodon waringii'')Cantalamessa et al., 2001 * ''

Smilodon fatalis ''Smilodon'' is a genus of the extinct machairodont subfamily of the felids. It is one of the most famous prehistoric mammals and the best known saber-toothed cat. Although commonly known as the saber-toothed tiger, it was not closely related ...

'' An association of two subadult and one adult specimen of '' Smilodon fatalis'' was reported from the formation by Reynolds, Seymour &

Evans Evans may refer to: People *Evans (surname) *List of people with surname Evans Places United States *Evans Island, an island of Alaska *Evans, Colorado *Evans, Georgia *Evans County, Georgia *Evans, New York *Evans Mills, New York *Evans City, ...

(2021), who interpret the subadult specimens as likely to be siblings, and evaluate the implications of this finding for the knowledge of the life history of ''S. fatalis''.Reynolds et al., 2021

References

Bibliography

* * * {{cite LSA , last=Cantalamessa , first=G. , last2=Di Celma , first2=C. , last3=Bianucci , first3=G. , last4=Carnevale , first4=G. , last5=Coltorti , first5=M. , last6=Delfino , first6=M. , last7=Ficcarelli , first7=G. , last8=Moreno Espinosa , first8=M. , last9=P. Pieruccini, L. Ragaini, L. Rook, M. Rossi, G. Tito, D. Torre, G. Valleri and W. Landini , first9=D. Naldini, , year=2001 , title=A new vertebrate fossiliferous site from the Late Quaternary at San José on the north coast of Ecuador: preliminary note , url=, doi=10.1016/S0895-9811(01)00027-X , journal=

Journal of South American Earth Sciences The ''Journal of South American Earth Sciences'' is a peer-reviewed scientific journal published by Elsevier. It covers the earth sciences, primarily on issues that are relevant to South America, Central America, the Caribbean, Mexico, and Antarct ...

, volume=14 , pages=331–334 , accessdate=2017-05-07 Geologic formations of Ecuador Pleistocene Ecuador Lujanian Shale formations Sandstone formations Tidal deposits Paleontology in Ecuador Formations

Fossil content

See also

References

Bibliography