Results 41 to 50 of about 2,860 (207)

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

Diversity Patterns of Late Jurassic Chondrichthyans: New Insights from a Historically Collected Hybodontiform Tooth Assemblage from Poland

Diversity, 2022
Here, we provide a detailed taxonomic reassessment of a historically collected chondrichthyan dental assemblage from the lower Kimmeridgian of Czarnogłowy in north-western Poland and discuss its significance for better understanding hybodontiform ...
Sebastian Stumpf, Stefan Meng, Jürgen Kriwet   +2 more
doaj   +1 more source

Bioecological analysis of Monogenea (Platyhelminthes) ectoparasites of some Chondrichthyan fishes from Algerian coast. 1st International Webinar of Animal Biodiversity, Protection and Environment. National Higher School of Agronomy, 26 et 27 mai 2022.

, 2022
Bioecological analysis of Monogenea (Platyhelminthes) ectoparasites of some Chondrichthyan fishes from Algerian ...
Imane DEROUICHE (12996114), Fadila TAZEROUTI (12996369)   +1 more
core   +1 more source

Deep sea fishing for chondrichthyan resources and sustainability concerns-a case study from Southwest coast of India [PDF]

, 2011
Deep sea fishing for chondrichthyan resources and sustainability concerns-a case study from Southwest coast of ...
Bineesh, K. K., Hashim, M., Vivekanandan, E., Shanis, C. P. R., Vivekanandan, E, Ganga, U, Ganga, U., Akhilesh, K V, Manjebrayakath, Hashim, Pillai, N. G. K., Bineesh, K K, Akhilesh, K. V., Pillai, N G K, Rajool Shanis, C P   +13 more
core   +1 more source

Blood collection under anesthesia, peripheral blood cells, plasma biochemistry, and plasma protein electrophoresis in a living fossil: the Spotted Ratfish (Hydrolagus colliei)

Frontiers in Veterinary Science
This report describes the safe and effective handling under anesthesia, blood collection and main clinical pathology values determination for three adult Spotted Ratfish (Hydrolagus colliei) (two males and one female) successfully maintained under human ...
Pablo Morón-Elorza, Pablo Morón-Elorza, Hugo David, Hugo Batista, Vanessa Quina, Nuria Baylina, Nuno Pereira   +6 more
doaj   +1 more source

Morphological variation of the conus arteriosus in Chondrichthyes: Implications for ecology and evolution

The Anatomical Record, EarlyView.
Abstract Cartilaginous fish have diverse morphological traits that are essential for understanding their evolutionary history and ecological adaptations. However, the conus arteriosus and its valves, key components of the heart and blood circulation, have been underexplored in phylogenetic and ecomorphological contexts.
Maria Clara El Bayeh de Andrade, Karla Diamantina de Araújo Soares   +1 more
wiley   +1 more source

Relationship of chondrichthyan species.

, 2013
Species tree illustrating the relationship of all chondrichthyan species employed in our analyses, either in the divergence time study or evolutionary rate analysis (see text for alternative views of the phylogenetic relationship).
Axel Meyer (15546), Shigehiro Kuraku (2968), Adina J. Renz (426309)   +2 more
core   +1 more source

The hyoid arch and braincase anatomy of Acanthodes support chondrichthyan affinity of ‘acanthodians’ [PDF]

, 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

Distribution of doublecortin in the developing retina of birds: A comparative analysis

The Anatomical Record, EarlyView.
Abstract The avian retina presents an elegant and highly accessible model for investigating the spatial and temporal dynamics of neurogenesis within the central nervous system. In recent years, the microtubule cytoskeleton has emerged not merely as a structural scaffold, but as a dynamic regulator of the transition of a morphologically homogeneous pool
Javier Francisco‐Morcillo, José Antonio de Mera‐Rodríguez, Violeta Calle‐Guisado, Gervasio Martín‐Partido, Joaquín Rodríguez‐León, Guadalupe Álvarez‐Hernán   +5 more
wiley   +1 more source

3D model related to the publication: The oldest Gondwanan record of the extinct durophagous hybodontiform chondrichthyan, Strophodus from the Bajocian of Morocco

, 2023
This contribution contains the 3D model related to the publication: Stumpf et al. (2023). The oldest Gondwanan record of the extinct durophagous hybodontiform chondrichthyan, Strophodus from the Bajocian of Morocco. Swiss Journal of Palaeontology 142:5.
Sebastian Stumpf (14270684), Jürgen Kriwet (8053964), Christoph Kettler (14270776), René Kindlimann (11021063), Gilles Cuny (14270797)   +4 more
core   +1 more source