''Calmonia'' is an extinct genus of
trilobite
Trilobites (; meaning "three lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the At ...
s. It contains one species: ''C. curvioculata''. Fossils of ''Calmonia'' have been found in the
Emsian to
Eifelian Ponta Grossa Formation and
Chapada Group of
Brazil
Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
, the
Belén and
Sica Sica Formations of
Bolivia
, image_flag = Bandera de Bolivia (Estado).svg
, flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center
, flag_alt2 = 7 × 7 square p ...
and the
Cordobés Formation
The Cordobés Formation is an Early Devonian ( Pragian to Emsian) geologic formation of the Durazno Group in the Paraná Basin in the Durazno Department of central Uruguay. The shallow marine shales preserve trilobite, bivalve, gastropod and b ...
of
Uruguay
Uruguay (; ), officially the Oriental Republic of Uruguay ( es, República Oriental del Uruguay), is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast; while bordering ...
.
[''Calmonia'']
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
References
Calmoniidae
Phacopida genera
Devonian trilobites of South America
Devonian Bolivia
Fossils of Bolivia
Devonian Brazil
Fossils of Brazil
Devonian Uruguay
Fossils of Uruguay
Paraná Basin
Fossil taxa described in 1913
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