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First record of dorsal and anal fin deformities in blue tang Acanthurus coeruleus (Acanthuridae, Actinopterygii) from northeastern Brazil Anais da ABC (AABC)
BRITO,CAMILA CRISTINA P. DE; ARAÚJO,JÚLIO L.; MÁRQUEZ-VELÁSQUEZ,VIVIANA; SILVA,MARIANNA B. DA; ROSA,RICARDO S..
Abstract: Dorsal and anal fin deformities in the blue tang Acanthurus coeruleus are reported for the first time from northeastern Brazil, based on observations during research dives at an artificial reef. Possible causative factors are discussed.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acanthuridae; Bony fish; Fins; Morphological deformities.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700615
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[Proceedings of the 5th Symposium on Mesozoic and Cenozoic Decapod Crustaceans, Krakow, Poland, 2013: A tribute to Pál Mihály Müller / R.H.B. Fraaije, M. Hyžný, J.W.M. Jagt, M. Krobicki & B.W.M. van Bakel (eds.)]: Neozanthopsis americana (Decapoda, Brachyura, Carpilioidea) from the Middle Eocene Cane River Formation of Louisiana, USA, and associated teleost otoliths Naturalis
Schweitzer, C.E.; Feldmann, R.M.; Stringer, G.L..
A large collection of Neozanthopsis americana (Rathbun, 1928) from the Middle Eocene (Lutetian) Cane River Formation in Louisiana, USA, represents the first opportunity to describe the species in detail. Detailed analysis of associated teleost otoliths and other vertebrate remains documents a palaeoenvironmental setting characterised by a soft-sediment, inner-shelf setting with normal salinity under tropical or subtropical conditions. Anatomical and morphometric analysis of 21 of the better-preserved crabs demonstrates that gender discrimination cannot be made from dorsal carapace characteristics and that the sample represents post-juvenile individuals. Exocuticle and endocuticle are preserved on some specimens and document the presence of erect...
Tipo: Article / Letter to the editor Palavras-chave: Crabs; Paleogene; Lutetian; Bony fish; Palaeoenvironment; Taphonomy; 42.74; 38.22.
Ano: 2014 URL: http://www.repository.naturalis.nl/record/523038
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Ray-finned fishes (Osteichthyes, Actinopterygii) from the type Maastrichtian, the Netherlands and Belgium Naturalis
Friedman, M..
Ray-finned fishes are a diverse, but understudied, component of the Maastrichtian marine fauna of the southeast Netherlands (Limburg) and northeast Belgium (Liège-Limburg). The most extensive reviews of fishes from these uppermost Cretaceous deposits were made in the early and mid-Twentieth Century, but little research on this important assemblage has been executed since. The present paper provides figures and brief descriptions of fishes from the Maastrichtian type area as an aid for field identification of fossil discoveries. A simple key to common Maastrichtian fish teeth from this area is also included. All convincing records of ray-finned fishes from the Maastrichtian of the Netherlands and Belgium, inclusive of the Mons Basin, are teleosts, and...
Tipo: Article / Letter to the editor Palavras-chave: Osteichthyes; Actinopterygii; Teleostei; Bony fish; Cretaceous; Maastrichtian; Type area; Europe; K/Pg extinction; 42.81.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/428932
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