scholarly journals Gastropods from the Solimões Formation (upper Miocene), Acre Basin, Brazil

2021 ◽  
Vol 24 (3) ◽  
pp. 195-204
Author(s):  
Felipe Nascimento Sousa ◽  
Rodrigo Cesar Marques ◽  
Victor Rodrigues Ribeiro ◽  
Geovane Augusto Gaia ◽  
Edson Guilherme ◽  
...  

A taxonomic review of Miocene gastropods from the Solimões Formation, Acre Basin, Brazil, from specimens collected at Cachoeira do Bandeira, Oriente, and an outcrop named Spot 04, is here presented. Three ampullariid species (Pomacea maculata, P.planorbula, Pomacea sp.), one thiarid species (Aylacostoma sp.), and one cochliopid species (Sioliella sp.) are identified for these deposits. These gastropod are known to occur in freshwaters environments, thus consolidating the hypothesis of a non-influence of brackish water on the upper Miocene deposits of the Acre Basin. The previous identification of P. maculata and Aylacostoma sp. is changed here considering biometrical analyses and shell morphological descriptions. The first report of Sioliella in this basin increases the gastropod fauna known for these strata and expands the range of this genus. Keywords: Pomacea, Aylacostoma, Sioliella, Ampullariidae, Thiaridae, Cochliopidae.

1998 ◽  
Vol 19 (4) ◽  
pp. 419-425 ◽  
Author(s):  
Francisco García-Talavera ◽  
Jean-Claude Rage ◽  
Fabiola Barahona

AbstractThe Upper Miocene fossil site of Orzola in Lanzarote (Canary Islands) has produced an isolated snake vertebra attributable to the Boidae. This is the first report of a snake, either fossil or living, from these islands, which provides further evidence of a greater faunal diversity in the past.


Author(s):  
Giovanni Pasini ◽  
Alessandro Garassino

We report Palaemon monsdamarum n. sp. (Crustacea, Decapoda, Palaemonidae) from the tripoli of the Messinian (upper Miocene) of Mondaino (Rimini, Emilia-Romagna, Italy). The presence of a new caridean species expands the scarce knowledge on the distribution and environmental range for the genus, usually scarcely reported in the worldwide Cenozoic fossil record. This is the first report of a carideans from the Miocene of Italy.


2020 ◽  
pp. 3-56
Author(s):  
LEA RAUSCH ◽  
MARIUS STOICA ◽  
SERGEI LAZAREV

The upper Miocene – lower Pliocene sedimentary succession of the Denizli Basin (SW Anatolia) displays a unique record of undisturbed stratigraphy and provides an excellent opportunity to study long-term palaeoecological changes. This paper documents the ostracod assemblages of two sections of the Neogene Kolankaya Formation, resulting in the following taxonomic, palaeobiogeographic and ecological interpretations. The ostracod assemblages from the two sections consist of a mixture of oligohaline to mesohaline tolerant taxa but expose fundamental differences in their composition. This is reflected by the fact that out of 32 determined species, both sections only have 3 in common. In the stratigraphic older succession, the diverse ostracod fauna resembles taxa known from the Paratethys. Faunal relations to the brackish lake habitats of the Euxinic and Pannonian basins are apparent and the palaeobiogeographic significance of the fauna is discussed. The ostracod association of the younger section indicates a low brackish water habitat with fluctuating salinities, most likely in the oligohaline range. The ostracod assemblage of the Kolankaya Formation only permits a broad age assignment to the late Miocene – early Pliocene.


1988 ◽  
Vol 62 (01) ◽  
pp. 141-143 ◽  
Author(s):  
Gerard M. Thomas ◽  
George O. Poinar

A sporulating Aspergillus is described from a piece of Eocene amber originating from the Dominican Republic. The Aspergillus most closely resembles a form of the white spored phase of Aspergillus janus Raper and Thom. This is the first report of a fossil species of Aspergillus.


2005 ◽  
Vol 173 (4S) ◽  
pp. 377-378
Author(s):  
Yasunori Hiraoka ◽  
Kazuhiko Yamada ◽  
Yuji Shimizu ◽  
Hiroyuki Abe
Keyword(s):  

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