Results 41 to 50 of about 1,638 (241)
Morphology of the anterior vertebral region in elasmobranchs: special focus, Squatiniformes [PDF]
Fossil Record, 2011 The morphology of extant and extinct Squatiniformes is well conserved within this lineage, but differences are of consequence to character interpretations for phylogenetic analyses.
K. M. Claeson, A. Hilger
doaj +5 more sources
Escamas de tubarões (Pisces: Chondrichthyes) da Formação Pirabas (Eomioceno), Pará, Brasil
Boletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 2008 A falta de posicionamento estratigráfico dos fósseis de tubarões até então coletados na Formação Pirabas dificultou a utilização dos mesmos em interpretações paleoecológicas e distribuição temporal.
Samantha Florinda Cecim Carvalho de Oliveira +2 more
doaj +1 more source
Repeated observations of cetaceans and carcharhiniformes associations in the Red Sea [PDF]
Marine Biodiversity, 2015 Shark-cetacean aggregations and associations of false killer whales (Pseudorca crassidens) with other cetaceans have been reported previously (e.g., Heithaus 2001; Baird et al. 2008). However, this is the first description of nonaggressive associations of P. crassidens with noncetaceans. Here we report encounters of P.
Röthig, Till +6 more
openaire +2 more sources
First record of albinism in the swell shark, Cephaloscyllium ventriosum (Elasmobranchii: Carcharhiniformes: Scyliorhinidae) [PDF]
Acta Ichthyologica et Piscatoria, 2017 We report the first record of albinism in the swell shark, Cephaloscyllium ventriosum (Garman, 1880). The specimen was caught off the southern part of the Baja California Peninsula, Mexico. The shark had no skin pigmentation and golden-coloured eyes. The
E.E. Becerril-García +3 more
doaj +3 more sources
Comparative anatomy of teeth and their relevance for systematic of the order Carcharhiniformes (Chondrichthyes: Elasmobranchii: Galeomorphi) [PDF]
, 2023 Os dentes compõem majoritariamente o registro fóssil de Elasmobranchii sendo, portanto, estruturas fundamentais para compreendermos a evolução do grupo.
Oliveira, Flávia Zanini de
core +1 more source
Latin American Journal of Aquatic Research, 2015 Se reporta el albinismo parcial de un embrión macho de tiburón de puntas negras, Carcharhinus limbatus, capturado en aguas costeras mexicanas del Pacífico oriental.
Francisco Sancho-Vazquez +2 more
doaj +1 more source
, 2009 Published as part of Matamoros, Wilfredo A., Schaefer, Jacob F. & Kreiser, Brian R., 2009, Annotated checklist of the freshwater fishes of continental and insular Honduras, pp.
Matamoros, Wilfredo A. +2 more
openaire +2 more sources
Molecular Phylogenetics and Evolution, 2006 We present a study of inter- and intra-familial relationships of the carcharhiniform shark family Triakidae aimed at testing existing hypotheses of relationships for this group and at improving understanding of the evolution of reproductive traits in elasmobranchs.
Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA ( host institution ) +4 more
openaire +3 more sources
Aquatic Living Resources, 2022 The starry smooth-hound Mustelus asterias is a near-threatened coastal shark in Europe, whose parasitofauna is largely unknown. We studied metazoan parasites of 20 immature sharks (13 males and seven females) from the English Channel and we examined ...
C. Gérard +5 more
semanticscholar +1 more source
Os carcharhiniformes (cCondrichthyes, Neoselachii) da Bacia de Alvalade (Portugal)
, 2021 The uppermost Miocene, Esbarrondadoiro Formation (Alvalade basin, Portugal) yielded more than 10 thousand Selachian teeth at Santa Margarida, Esbarrondadoiro and Vale de Zebro outcrops.
A. Balbino, M. T. Antunes
semanticscholar +1 more source