Results 71 to 80 of about 1,230 (177)

КОМПЛЕКС ЭЛАСМОБРАНХИЙ ПОЗДНЕГО ЭОЦЕНА В ПЛЕЙСТОЦЕНОВОМ АЛЛЮВИАЛЬНОМ ТАФОЦЕНОЗЕ В СРЕДНЕМ ЗАУРАЛЬЕ: БИОСТРАТЕГРАФИЧЕСКОЕ И ПАЛЕОГЕОГРАФИЧЕСКОЕ ЗНАЧЕНИЕ

Литосфера, 2019
Изучен многочисленный комплекс остатков эласмобранхий (Chondrichthyes: Elasmobranchii) из Зауралья, переотложенный из палеогеновых в аллювиальные верхнеплейстоценовые отложения. Комплекс происходит из одного геологического источника, насчитывает около 20

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Paleontologia da fácies arenosa do membro Taquaral (Permiano) no Estado de São Paulo: estado da arte e contribuições adicionais

Geologia USP. Série Científica, 2016
A Formação Irati, Permiano (Cisuraliano) da Bacia do Paraná, destaca-se por importantes características geológicas e paleontológicas. Entre seus fósseis, os crustáceos e répteis Mesosauridae são os mais conhecidos e estudados.
Artur Chahud, Setembrino Petri
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Biometric characterization of sharks of the genus Sphyrna (Griffith & Smith, 1834) on the coast of Sergipe

Biotemas, 2016
Sharks, rays and chimeras belonging to the subclass Elasmobranchii of the class Chondrichthyes have a slow maturation and development, and they are animals often caught as by-catch, making them vulnerable to extinction.
Jéssica Barros Andrade, Daniela Nascimento Santos, Maraisa de Oliveira Silva, Thays Brito Reis Santos, Thiago Silveira Meneses, Andressa Sales Coelho   +5 more
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Lamnoid vertebrae from the Agua Nueva Formation (Upper Cretaceous: lower Turonian), northeastern Mexico

Revista Mexicana de Ciencias Geológicas, 2018
A partial vertebral series of a lamniform shark (Chondrichthyes: Elasmobranchii) occurred in the “Vallecillo fish Member” of the Agua Nueva Formation (Upper Cretaceous: Lower Turonian) at Vallecillo, Mexico.
Alberto Blanco-Piñón, Kenshu Shimada, Gerardo González-Barba   +2 more
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Lista patrón de los tiburones, rayas y quimeras (Chondrichthyes, Elasmobranchii, Holocephali) de México [PDF]

Arxius de Miscel-lània Zoològica, 2016
Checklist of sharks, rays and chimaeras (Chondrichthyes, Elasmobranchii, Holocephali) from Mexico We present an annotated checklist of the species of sharks, rays and chimaeras (chondrichthyan fishes) occurring in Mexican waters, based on a thorough ...
Del Moral-Flores, L. F., Morrone, J. J., Alcocer Durand, J., Espinosa-Pérez, H., Pérez-Ponce De León, G.   +4 more
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Four new species of neotropical freshwater stingrays of the genus Paratrygon (Myliobatiformes: Potamotrygonidae) from clear water rivers of the Amazon basin

Neotropical Ichthyology
The second most diverse genus of the Potamotrygonidae, Paratrygon, with three previously recognized species, P. aiereba, P. orinocensis and P. parvaspina, is here expanded, with the description of four new species, each endemic to one of the four largest
Thiago Silva Loboda
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Length-weight relationship of 73 fish species caught in the southeastern inner continental shelf region of Brazil

Latin American Journal of Aquatic Research, 2014
The a and b parameters of the length-weight relationship (LWR) of the form W = aLb were estimated for 71 species of Actinopterygii and 2 Elasmobranchii, caught in the coastal region and inner shelf of southeastern Brazil. Estimates of b varied from 2.151
June F Dias, Wellington S Fernandez, Thassya C.S. Schmidt   +2 more
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A marginal marine fauna from the upper Dinosaur Park Formation, Canada

Vertebrate Anatomy, Morphology, Palaeontology
During the Late Cretaceous, the coastline of the epicontinental Western Interior Seaway in North America fluctuated in position, temporarily replacing some terrestrial ecosystems with shallow marine habitats.
Luke Nelson, Joshua Doyon, Alison Murray, Don Brinkman, Robert Holmes   +4 more
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Aspects of the reproductive biology of the shortfin mako, Isurus oxyrinchus (Elasmobranchii Lamnidae), in the Southeastern region of Brazil

Brazilian Journal of Biology, 2002
Uteri from four pregnant females and two newborn of shortfin mako, Isurus oxyrinchus, were collected in the southeastern region of Brazil, during September, October, and November of 1993 and 1994.
COSTA F. E. S., BRAGA F. M. S., ARFELLI C. A., AMORIM A. F.   +3 more
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Three-dimensional fossils of a Cretaceous collared carpet shark (Parascylliidae, Orectolobiformes) shed light on skeletal evolution in galeomorphs

Royal Society Open Science
A rich fossil record of teeth shows that many living shark families’ origins lie deep in the Mesozoic. Skeletal fossils of the sharks to whom these teeth belonged are far rarer and when they are preserved are often flattened, hindering understanding of ...
Richard P. Dearden, Zerina Johanson, Helen L. O’Neill, Kieran Miles, Emma L. Bernard, Brett Clark, Charlie J. Underwood, Martin Rücklin   +7 more
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