[permalink] [id link]
Chondrichthyes (; from Greek χονδρ-chondr-' cartilage ', ἰχθύς ichthys ' fish ') or cartilaginous fishes are jawed fish with paired fins, paired nares, scales, a two-chambered heart, and skeletons made of cartilage rather than bone.
from
Wikipedia
Some Related Sentences
Chondrichthyes and from
They may have been an independent phylogenetic branch of fishes, which had evolved from little-specialized forms close to Recent Chondrichthyes.
Chondrichthyes and cartilage
Their skeletons are largely cartilage ( hence " jellynose "), although they are true teleosts and not at all related to Chondrichthyes.
Like other members of the class Chondrichthyes, chimaeras have a skeleton constructed of cartilage.
Chondrichthyes and fish
├─ Class Chondrichthyes ( cartilaginous fish )
This includes skeletal fish ( Osteichthyes ), cartilaginous fish ( Chondrichthyes ), and jawless fish ( Agnatha ).
In contrast to bony fish, with the exception of the coelacanth, the blood and other tissue of sharks and Chondrichthyes is generally isotonic to their marine environments because of the high concentration of urea and trimethylamine N-oxide ( TMAO ), allowing them to be in osmotic balance with the seawater.
The group is traditionally a superclass, broken into three top-level groupings: Chondrichthyes, or the cartilaginous fish ; Placodermi, an extinct clade of armored fish ; and Teleostomi, which includes the familiar classes of bony fish, birds, mammals, reptiles, and amphibians.
::::* Class Chondrichthyes ( cartilaginous fish )
** Class Chondrichthyes ( cartilaginous fish )
Elasmobranchii () is a subclass of Chondrichthyes or cartilaginous fish, that includes the sharks ( Selachii ) and the rays and skates ( Batoidea ).
Elasmobranchii is one of the two subclasses of cartilaginous fish in the class Chondrichthyes, the other being Holocephali ( chimaeras ).
( 2012 ) found acanthodians to be split among the two major clades Osteichthyes ( bony fish ) and Chondrichthyes ( cartilaginous fish ).
**** Class Chondrichthyes ( cartilaginous fish )
Chondrichthyes and cartilaginous
** Class Chondrichthyes ( cartilaginous fishes )
**** Class Chondrichthyes ( cartilaginous fishes )
In some classifications the chimaeras are included ( as subclass Holocephali ) in the class Chondrichthyes of cartilaginous fishes ; in other systems this distinction may be raised to the level of class.
Chondrichthyes and fishes
" Interrelationships of the batoid fishes ( Chondrichthyes: Batoidea )".
Chondrichthyes and are
The extant members of the Chondrichthyes are the sharks and rays, belonging to the subclass Elasmobranchii, and the chimaeras, belonging to the subclass Holocephali.
Chondrichthyes and scales
Chondrichthyes have toothlike scales called denticles or placoid scales.
Chondrichthyes and .
Chondrichthyes also lack ribs, so if they leave water, the larger species ' own body weight would crush their internal organs long before they would suffocate.
All Chondrichthyes breathe through 5-7 gills, depending on the species.
There is no parental care after birth ; however, some Chondrichthyes do guard their eggs.
Sharks belong to the superorder Selachimorpha in the subclass Elasmobranchii in the class Chondrichthyes.
The Elasmobranchii also include rays and skates ; the Chondrichthyes also include Chimaeras.
It is the sole member of the genus Rhincodon and the family, Rhincodontidae ( called Rhiniodon and Rhinodontidae before 1984 ), which belongs to the subclass Elasmobranchii in the class Chondrichthyes.
In Chondrichthyes and Agnathans, the occipital do not form as a separate element, but remain part of the chondrocranium throughout life.
Sharks constitute the superorder Selachimorpha in the subclass Elasmobranchii in the class Chondrichthyes.
The Elasmobranchii also include rays and skates ; the Chondrichthyes also include Chimaeras.
(; and from
Andre Kirk Agassi (; born April 29, 1970 in Las Vegas, Nevada ) is a retired American professional tennis player and former World No. 1, who was one of the game's most dominant players from the early 1990s to the mid 2000s.
Antoninus Pius (; born 19 September 86AD – died 7 March 161AD ), also known as Antoninus, was Roman Emperor from 138AD to 161AD.
An argot (; French, Spanish, and Catalan for " slang ") is a secret language used by various groups — including, but not limited to, thieves and other criminals — to prevent outsiders from understanding their conversations.
Albert the Bear (; c. 1100 – 18 November 1170 ) was the first Margrave of Brandenburg ( as Albert I ) from 1157 to his death and was briefly Duke of Saxony between 1138 and 1142.
In Greco-Roman mythology, Aeneas (; Greek:, Aineías, derived from Greek meaning " to praise ") was a Trojan hero, the son of the prince Anchises and the goddess Aphrodite.
Ailanthus (; derived from ailanto, an Ambonese word probably meaning " tree of the gods " or " tree of heaven ") is a genus of trees belonging to the family Simaroubaceae, in the order Sapindales ( formerly Rutales or Geraniales ).
Alaric I (; 370-410 ) was the King of the Visigoths from 395 – 410.
Severus Alexander (; 1 October 208 – 18 or 19 March 235 ) was Roman Emperor from 222 to 235.
Afonso IV (; 8 February 1291 – 28 May 1357 ), called the Brave (), was King of Portugal and the Algarve from 1325 until his death.
Anacharsis (; ) was a Scythian philosopher who travelled from his homeland on the northern shores of the Black Sea to Athens in the early 6th century BC and made a great impression as a forthright, outspoken " barbarian ", apparently a forerunner of the Cynics, though none of his works have survived.
Andronikos III Palaiologos, Latinized as Andronicus III Palaeologus (; 25 March 1297 – 15 June 1341 ) was Byzantine emperor from 1328 to 1341, after being rival emperor since 1321.
In phonology, an allophone (; from the, állos, " other " and φωνή, phōnē, " voice, sound ") is one of a set of multiple possible spoken sounds ( or phones ) used to pronounce a single phoneme.
Antlia (; from Ancient Greek ἀντλία ) is a constellation in the southern sky.
Antonio Canova (; 1 November 1757 – 13 October 1822 ) was an Italian sculptor from the Republic of Venice who became famous for his marble sculptures that delicately rendered nude flesh.
The aorta (; from Greek ἀορτή-aortē, from ἀείρω-aeirō " I lift, raise ") is the largest artery in the body, originating from the left ventricle of the heart and extending down to the abdomen, where it bifurcates into two smaller arteries ( the common iliacs ).
Arcadius (; ; 377 / 378 – 1 May 408 ) was the Byzantine Emperor from 395 until his death in 408.
Ælle (; also Aelle or Ella ) is recorded in early sources as the first king of the South Saxons, reigning in what is now called Sussex, England, from 477 to perhaps as late as 514.
Albrecht Dürer (; 21 May 1471 – 6 April 1528 ) was a German painter, printmaker, engraver, mathematician, and theorist from Nuremberg.
In chemistry, an alkali (; from Arabic: al-qaly القلي, القالي ) is a basic, ionic salt of an alkali metal or alkaline earth metal element.
Byzantium (;, Byzántion ; Latin: ) was an ancient Greek city, founded by Greek colonists from Megara in 657 BC and named after their king Byzas ( Greek: Βύζας, Býzas, genitive Βύζαντος, Býzantos ).
In literary criticism, a Bildungsroman (; ) or coming-of-age story is a literary genre that focuses on the psychological and moral growth of the protagonist from youth to adulthood ( coming of age ), and in which character change is thus extremely important.
The Bolsheviks, originally also Bolshevists (; derived from bol ' shinstvo, " majority ") were a faction of the Marxist Russian Social Democratic Labour Party ( RSDLP ) which split apart from the Menshevik faction at the Second Party Congress in 1903.
0.337 seconds.