Results 121 to 130 of about 67,849 (308)

Integrative taxonomy reveals two new species of whiptail catfishes Loricaria (Siluriformes: Loricariidae) from northeastern Brazil

Journal of Fish Biology, EarlyView.
Abstract Two new species of whiptail catfish, Loricaria (Siluriformes: Loricariidae), were discovered in the Munim and Itapecuru river basins, Maranhão State, northeastern Brazil, through an integrative taxonomic approach combining morphology and mitochondrial DNA.
Ananda. C. Serejo‐Saraiva, Nivaldo M. Piorski, Felipe P. Ottoni, Mark H. Sabaj, Sergio M. Q. Lima   +4 more
wiley   +1 more source

Assessment of upper premolar morphological traits as reliable phylogenetic indicators [PDF]

, 2002
Upper premolar size and cusp heteromorphy have been used in several studies that argue for alternative phyletic placements of early and middle Miocene fossil hominoids relative to extant primate clades.
Blundell, Louie Chantale
core  

Time‐calibrated relationships of a rare cave catfish (Trichomycterus rubbioli): Shedding light on troglobitic lifestyle origin in the Brazilian caatinga

Journal of Fish Biology, EarlyView.
Abstract Catfishes of the subfamily Trichomycterinae comprise the most diverse fish group with species adapted to live in Neotropical caves, but past evolutionary scenarios that have driven the origin of these troglobitic species remain unknown. We herein investigate the phylogenetic position of the cave‐restricted Trichomycterus rubbioli, endemic to ...
Wilson J. E. M. Costa, Paulo J. Vilardo, José Leonardo O. Mattos, Axel M. Katz, Valter M. Azevedo‐Santos, Pedro L. C. Uzeda, Rodrigo L. Ferreira   +6 more
wiley   +1 more source

New light on the trophic ecology of Carcharodon hastalis from teeth embedded in Miocene cetacean vertebrae from Calvert Cliffs in Maryland, USA

Acta Palaeontologica Polonica
Recent isotopic analyses of the teeth of the extinct lamnid Carcharodon hastalis showed that it fed at a comparable trophic level as was the fossil and modern great white shark, Carcharodon carcharias. Although there are many examples of shark bite marks
Stephen J. Godfrey, Victor J. Perez, Marcus Jones, Phillip F. Chapman, Nathan Spencer, Jason E. Osborne   +5 more
doaj   +1 more source

Palaeoceanography of the Miocene Mediterranean Sea and Paratethys: Regional ocean modelling of the response to closure of the Tethys Seaway. Geologica Ultraiectina (338)

, 2011
Tectonic plates form the Earth’s outer shell and move over the underlying mantle with a speed of a few centimetres per year. These plate-tectonic motions affect Earth’s geography over geological timescales (on the order of a million years) by displacing ...
Circulation of the Oligocene-Miocene Mediterranean Sea and Paratethys; a model study, Tectonophysics, Karami Arokhloo, M.P.   +2 more
core  

Isolated in the highlands, found in the museum: A new species of Characidium (Crenuchidae) from a Bolivian National Park, with a CT scan revealing features

Journal of Fish Biology, EarlyView.
Abstract A new species of Characidium is described from a small, isolated river in the highland areas of Noel Kempff Mercado National Park, Bolivia. The new taxon can be diagnosed by the presence of a relatively broad and conspicuous dark midlateral stripe extending from the tip of snout to the base of the caudal fin, markedly darker than the vertical ...
Leonardo Oliveira‐Silva, Karina Or, Angela Zanata, Scott A. Schaefer   +3 more
wiley   +1 more source

Early Miocene seed like plant remain fossils and facies associations from the Nallıhan district (NW Turkey)

Bulletin of the Mineral Research and Exploration, 2020
Muhittin GÖRMÜŞ, Yusuf Kagan KADIOĞLU, Baki Erdoğan VAROL, Muhammed Sami US   +3 more
doaj   +1 more source

A new harpactorin hemipteran insect from the Miocene Dominican amber with fossula spongiosa on all three pairs of legs

Acta Palaeontologica Polonica
A new genus and species of fossil harpactorin (Hemiptera: Reduviidae), Trispongiosus hui Zhang, Yao, & Liu gen. et sp. nov., is described from Miocene Dominican amber, representing the third fossil record of Harpactorinae.
Peipei Zhang, Yunzhi Yao, Zhengkun Hu, Dong Ren, Yingqi Liu   +4 more
doaj   +1 more source

Solenostomus snuffleupagus sp. nov., a hairy ghost pipefish (Teleostei: Solenostomidae) from the Southwest Pacific, with an integrative comparison to S. paegnius

Journal of Fish Biology, EarlyView.
Abstract A new species of ghost pipefish, Solenostomus snuffleupagus sp. nov., is described from the Coral Sea based on specimens (18–34 mm SL) collected from coral reef habitats in Queensland, Australia. The species is diagnosed by the following combination of characters: abundant elongate integumentary filaments imparting a conspicuously shaggy ...
Graham Short, David Harasti
wiley   +1 more source

Tooth morphology of deep‐water catsharks of the genus Apristurus (Chondrichthyes: Pentanchidae) in the North Atlantic Ocean

Journal of Fish Biology, EarlyView.
Abstract The deep‐water catshark family (Pentanchidae) is the most species‐rich family among extant shark lineages. Within this family, the genus Apristurus is the largest, comprising small, deep‐sea species characterised by elongated bodies and dorso‐ventrally compressed snouts. Five Apristurus species are currently recognised from the North Atlantic,
Jesco Seifert, Daniel M. Moore
wiley   +1 more source