Morphometric Discriminant Analysis of isolated chondrichthyan scales for palaeoecological inferences: the Middle Triassic of the Iberian Chain (Spain) as a case of study [PDF]
Palaeontological studies on exosqueletal disarticulated remains of chondrichthyans have focused on teeth and only less interest has been paid to scales due their limited taxonomic and systematic significance.
Botella, H. +4 more
core +2 more sources
Deep-sea chondrichthyan composition and abundance in Andaman waters, Indian EEZ-preliminary results based on exploratory survey [PDF]
, 2016 Two deep-sea fishery surveys were conducted during 2015 to explore the fish diversity and fishing grounds.
Akhilesh, K V +4 more
core
Journal of Morphology, Volume 287, Issue 3, March 2026.The figure presents a model of Moythomasia and a schematic histological model illustrating the internal structure and features of the cranial bones. These include bone (brown), osteocyte spaces (red), spheritic bone (light brown), osteon spaces (orange), dentine and canaliculi (green), pulp canal (yellow), ganoine (gray), arrested growth lines (dashed ...
Xianren Shan +5 more
wiley +1 more source
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. +4 more
doaj
Reply to "placoderms and the evolutionary origin of teeth" [PDF]
, 2016 [no ...
Donoghue, Philip, Rücklin, M
core +2 more sources
The shark-tuna dichotomy: why tuna lay tiny eggs but sharks produce large offspring [PDF]
, 2018 Teleosts such as tunas and billfish lay millions of tiny eggs weighing on the order of 0.001 g, whereas chondrichthyes such as sharks and rays produce a few eggs or live offspring weighing about 2% of adult body mass, as much as 10 000 g in some species.
Brown, James H. +3 more
core +1 more source
Distribution and reproductive biology of the Electric ray Discopyge tschudii Heckel, 1846 in San Matías Gulf, Northern Patagonia, Argentina [PDF]
, 2011 The Electric ray Discopyge tschudii is distributed form southern Brazil to Peru. The main threat to this species is fishing. Discopyge tschudii is noncommercial and individuals caught are discarded on board.
Coller, Nidia Marina +3 more
core +3 more sources
Late Viséan pelagic chondrichthyans from northern Europe [PDF]
, 2014 The relatively rich assemblages of shark teeth from pelagic limestone (Mississippian, late Viséan, late Asbian–middle Brigantian) of three northern European regions: the Rhenish Mountains (Westenfeld Quarry, Germany), the Holy Cross Mountains (Todowa
Dean, Mark T. +3 more
core +3 more sources
Frontiers in Physiology, 2019 The olfactory organ of Chondrichthyes is characterized by a central support with several lamellae covered by a sensory olfactory epithelium. Although secondary folds are present on the lamellae in all the chondrichthyan species analyzed to date, their ...
Sara Ferrando +9 more
doaj +1 more source
Chondrichthyan egg cases from the south‐west Atlantic Ocean
Journal of Fish Biology, 2011 Egg cases of 21 oviparous chondrichthyan species from the south‐west Atlantic Ocean are described and compared. The catsharkSchroederichthys biviushas a cigar‐shaped egg case with curled tendrils only at the posterior end. Egg cases of the elephant fishCallorhinchus callorynchusare spindle‐shaped with anterior and posterior tubular extensions and ...
Mabragaña, Ezequiel +5 more
openaire +3 more sources