The Candelaria Formation is a geologic formation in Nevada, United States. The formation comprises

shale Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especial ...

s and limestones deposited in an open marine

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 ...

and preserves

fossils A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in ...

dating back to the Induan (

Griesbachian The Induan is the first age of the Early Triassic epoch in the geologic timescale, or the lowest stage of the Lower Triassic series in chronostratigraphy. It spans the time between 251.902 Ma and Ma (million years ago). The Induan is sometimes ...

Dienerian The Induan is the first age of the Early Triassic epoch in the geologic timescale, or the lowest stage of the Lower Triassic series in chronostratigraphy. It spans the time between 251.902 Ma and Ma (million years ago). The Induan is sometimes ...

)

age Age or AGE may refer to: Time and its effects * Age, the amount of time someone or something has been alive or has existed ** East Asian age reckoning, an Asian system of marking age starting at 1 * Ageing or aging, the process of becoming older ...

of the Early Triassic epoch.Candelaria 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

Among others, the following fossils of ammonoids,

bivalves Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bival ...

and ray-finned fishes have been recovered from the formation: * '' Ambites lilangensis'' * '' Ambites aff. radiatus'' * '' Ardoreosomus occidentalis'' * '' Candelarialepis argentus'' * ''

Claraia aurita ''Claraia'' is an extinct genus of scallop-like bivalve molluscs that lived from the Capitanian stage of the Middle Permian to the Anisian stage of the Middle Triassic, 266-237 million years ago. Fossils have been found worldwide in North Amer ...

'', '' C. clarai'', '' C. stachei'' * '' Clypites cf. evolvens'' * '' Grypoceras cf. brahmanicum'' * '' ?Gyrolepis sp.'' * '' Meekoceras cf. tenuistriatum'' * '' Microconchus sp.'' * '' Mullericeras fergusoni'', '' M. spitiense'' * '' Parahedenstroemia kiparisovae'' * '' Proptychites haydeni'', '' P. pagei'' * '' Proptychites cf. ammonoides'', '' P. cf. trilobatus'' * '' Pteronisculus nevadanus'' * '' Radioceras kraffti'' * '' Ussuridiscus sp.'' * '' Vavilovites sp.''

References

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Fossil content

See also

References

Further reading