Results 71 to 80 of about 5,320 (221)
MYOCARDIAL STRUCTURE AND VASCULARIZATION OF THE HEART VENTRICLE IN HOLOCEPHALI: IMPLICATIONS FOR HEART EVOLUTION [PDF]
, 2013 El resumen aparece en el Program & Abstracts of the 10th International Congress of Vertebrate Morphology, Barcelona 2013. Anatomical Record, Volume 296, Special Feature — 1: P-075.It has been classically assumed that the ventricle of the primitive ...
Durán, Ana C. +5 more
core
The hyoid arch and braincase anatomy of Acanthodes support chondrichthyan affinity of ‘acanthodians’
, 2015 Solving the evolutionary relationships of the acanthodians is one of the key problems in reconstructing ancestral anatomical conditions for the jawed vertebrates (gnathostomes).
Brazeau, MD, de Winter, V
core +1 more source
The homology and phylogeny of chondrichthyan tooth enameloid [PDF]
Journal of Morphology, 2006 AbstractA systematic SEM survey of tooth microstructure in (primarily) fossil taxa spanning chondrichthyan phylogeny demonstrates the presence of a superficial cap of single crystallite enameloid (SCE) on the teeth of several basal elasmobranchs, as well as on the tooth plates of Helodus (a basal holocephalan).
Gillis, JA, Donoghue, PCJ
openaire +3 more sources
Journal of Fish Biology, EarlyView.Abstract This study documents the occurrence, seasonal patterns and reproductive activity of the sand tiger shark (Carcharias taurus) within a no‐take marine protected area in southeastern Brazil, using Baited Remote Underwater Video (BRUV) and diving records.
Ana Clara S. Athayde +8 more
wiley +1 more source
Updated checklist of the extant Chondrichthyes within the Exclusive Economic Zone of Mexico
ZooKeys, 2018 The checklist presented in this study includes the latest taxonomic and systematic modifications and updates (early 2018) for the Chondrichthyes that inhabit the Exclusive Economic Zone (EEZ) of Mexico.
Nicolás Roberto Ehemann +3 more
doaj +3 more sources
The bulbus arteriosus of the holocephalan heart [PDF]
, 2013 El resumen aparece en el Program & Abstracts of the 10th International Congress of Vertebrate Morphology, Barcelona 2013.Anatomical Record, Volume 296, Special Feature — 1: P-074.Previous work has shown that the outflow tract of the elasmobranch heart ...
Durán, Ana C. +5 more
core
Journal of Anatomy, EarlyView.Pectoral fins of bichirs encompass the so‐called dental plates – unique dermal skeletal elements with individual odontodes identical to the oral teeth. Abstract The dermal skeleton appeared early in vertebrate evolution in the form of mineralized skin denticles composed of tooth‐like units—odontodes.
Tomáš Suchánek +2 more
wiley +1 more source
Trematodes of the Great Barrier Reef, Australia: emerging patterns of diversity and richness in coral reef fishes [PDF]
, 2014 The Great Barrier Reef holds the richest array of marine life found anywhere in Australia, including a diverse and fascinating parasite fauna. Members of one group, the trematodes, occur as sexually mature adult worms in almost all Great Barrier Reef ...
Allen +103 more
core +1 more source
Resilience to Cardiac Aging in Greenland Shark Somniosus microcephalus
Aging Cell, Volume 25, Issue 5, May 2026.Greenland shark Somniosus microcephalus shows severe cardiac aging such as fibrosis, lipofuscin buildup, mitochondrial damage, and oxidative stress, unseen in comparison species Etmopterus spinax and Nothobranchius furzeri, yet remain healthy. S. microcephalus resilience suggests unique mechanisms that preserve heart function for centuries, offering ...
Elena Chiavacci +14 more
wiley +1 more source
Chondrichthyans from the Devonian–Early Carboniferous of Belarus [PDF]
Estonian Journal of Earth Sciences, 2018 Diverse remains of chondrichthyans were found in several stratigraphic levels in 18 cores of the Devonian and Lower Carboniferous of Belarus. Most of the taxa were first reported in that territory. A new species of ctenacanthiform shark, Tamiobatis elgae,
Alexander O. Ivanov, Dmitry P. Plax
doaj +1 more source