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Gamoneda Formation
The Gamoneda Formation is an Emsian geologic Formation (geology), formation of southern Bolivia. The approximately thick formation comprises marine micaceous grey siltstones and burrowed grey sandstones and shales. at Fossilworks.org Fossil content The formation has provided the following fossils: * ''Acastoides, Acastoides gamonedensis'' * ''Australocoelia, Australocoelia palmata'' * ''Australospirifer, Australospirifer hawkinsi'' * ''Australostrophia, Australostrophia mesembria'' * ''Bainella, Bainella (Belenops) insolita'' * ''Cryptonella, Cryptonella baini'' * ''Deltacephalaspis, Deltacephalaspis (Deltacephalaspis) comis'' * ''Deltacephalaspis, Deltacephalaspis (Deltacephalaspis) retrospina'' * ''Deltacephalaspis, D ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological Formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness (geology), thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bainella
''Bainella'' is an extinct genus of Devonian trilobites from off the coast of Gondwana. Fossils were found in the Ponta Grossa Formation of Brazil, Belén, Icla and Gamoneda Formations of Bolivia and the Gydo, Gamka and Voorstehoek Formations of South Africa. It contains three species: ''B. africana'', ''B. baini'', and ''B. cristagalli''. 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
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Burmeisteria
''Burmeisteria'' is a genus of trilobites in the order Phacopida (family Homalonotidae) that existed during the lower Devonian in what is now South Africa. It was described by Salter in 1865, and the type species is ''Burmeisteria herschelii'', which was originally described under the genus '' Homalonotus'' by Murchison in 1839. It also contains the species ''B. accraensis'', ''B. acuminata'', and ''B. noticus''. The type locality was the Bokkeveld Group. P.A. Jell and J.M. Adrain. References External links ''Burmeisteria'' at the |
Tarijactinoides
''Tarijactinoides'' is a genus of trilobites in the order Phacopida, which existed in what is now Bolivia. It was described by Suárez Soruco in 1971, and the type species is ''Tarijactinoides jarcasensis''. P.A. Jell and J.M. Adrain. Distribution Fossils of two species of ''Tarijactinoides'', ''T. jarcasensis'' and ''T. tikanensis'', have been found in Emsian sediments of the Lower Belén, Lower Icla and[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phacopina
The Phacopina comprise a suborder of the trilobite order Phacopida. Species belonging to the Phacopina lived from the Lower Ordovician (Tremadocian) through the end of the Upper Devonian (Famennian).Moore, R.C. (ed.). Treatise on Invertebrate Paleontology. Part O – Arthropoda (Trilobitomorpha). 1959 The one unique feature that distinguishes Phacopina from all other trilobites are the very large, separately set lenses without a common cornea of the compound eye. Habitat As far as known, all Phacopina species were marine bottom-dwellers. Origin The Early Ordovician genus '' Gyrometopus'' (superfamily Dalmanitoidea, family Diaphanometopidae) is probably close to the common ancestor of the Phacopina. ''Gyrometopus'' is phacopid in appearance, but a rostral plate is present, unlike in other Phacopina. However, the rostral plate does not divide the cephalic doublure into a left and right section, but instead the rostral suture defines a semicircle in the frontal ¾ of the doublur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kozlowskiaspis
''Kozlowskiaspis'' is a genus of trilobites in the order Phacopida (family Calmoniidae), that existed during the lower Devonian in what is now Bolivia. It was described by Branisa and Vanek in 1973, and the type species is ''Kozlowskiapsis superna''. It also contains the species ''K. australis'' and ''K. borealis''. The type locality was the Icla Formation. P.A. Jell and J.M. Adrain. References External links ''Kozlowskiaspis'' at the |
Gamonedaspis
''Gamonedaspis'' is a trilobite in the order Phacopida (family Dalmanitidae), that existed during the lower Devonian in what is now Bolivia. It was described by Branisa and Vanek in 1973, and the type species is ''Gamonedaspis scutata''. The type locality was the Belén Formation. P.A. Jell and J.M. Adrain. References External links ''Gamonedaspis'' at the Paleobiology Database
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