How To Use Ganoid In A Sentence
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Finally, with respect to the ‘Vertebrata’, the same law holds good: certain types, such as those of the ganoid and placoid fishes, having persisted from the palaeozoic epoch to the present time without a greater amount of deviation from the normal standard than that which is seen within the limits of the group as it now exists.
Essays
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We find the same biserial primitive fin more or less preserved in the fossilised remains of the earliest Selachii (Figure 2.248), Ganoids
The Evolution of Man — Volume 2
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The ganoids had already reached their evolutionary climax in the Permian and Triassic, some 270-190 million years ago; today they are few in number when compared with the dominant bony fishes.
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With the second earliest vertebrates, -- the ganoids of the Old Red Sandstone, -- we are more directly acquainted, and know that they exhibited the true typical form, -- a vertebral column terminating in a brain-protecting skull; and that, in at least the acanth, celacanth, and dipterian families, they had the limb-like fins.
The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed
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I gasped — for the fish had been a ganoid — that ancient, armoured form that was perhaps the most intelligent of all life on our planet during the Devonian era, but which for age upon age had vanished, save for its fossils held in the embrace of the stone that once was their soft bottom beds; and the half-globes were Medusae, jelly-fish — but of a size, luminosity, and colour unheard of.
The Moon Pool
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Two percent of the entire fauna are vertebrates, ganoid-scaled and bony fishes being the most common group.
Messel Pit fossil site, Germany
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Finally, with respect to the ‘Vertebrata’, the same law holds good: certain types, such as those of the ganoid and placoid fishes, having persisted from the palaeozoic epoch to the present time without a greater amount of deviation from the normal standard than that which is seen within the limits of the group as it now exists.
Essays
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They also possess a heterocercal caudal fin and remnants of ganoid scales; both are uncommon among extant actinopterygians.
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Statistical comparisons were made among osteichthyans using ganoid scales, caudates using vertebrae, ornithischians using teeth, and testudinates using shell fragments.
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Bony fishes, lungfishes, & most ganoids - retain highly cartilaginous neurocranium that is covered by membrane bone
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It was not until the beginning of the twentieth century that Bashford Dean made the important discovery in Japan that one of the oldest living fishes of the shark type (Cestracion japonicus) has the same total unequal segmentation as the amphiblastic plated fishes (ganoides).
The Evolution of Man — Volume 1
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Actinopterygians may have ganoid, cycloid, or ctenoid scales, or no scales at all in many groups.
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Round-hulled Plumie ship, and ganoid-shaped _Niccola_, they stuck immovably together as if they had been that way since time began.
The Aliens
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To him, the ganoid was a huge perplexity, none the less because neither he nor the ganoid troubled Darwinians, but the more because it helped to reveal that Darwinism seemed to survive only in England.
Twilight (1901)
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So long as the strongly-armed ganoidal order prevailed in nature, the sharks were furnished with massive crushing teeth; but when the ganoids waned in creation, and the soft-scaled cycloid and ctenoid orders took and amply filled the place which they had left vacant, the well known modern form of sharks 'teeth was introduced, -- a form much rather suited for cutting soft bodies than for crushing hard ones.
The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed
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In the collection of ganoids the most complete is representation of Acipenseriformes, mainly of acipenserids proper.
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I tried to follow his scheme of division into the order of ctenoids and ganoids, with the result that I found one of my species of side-swimmers had cycloid scales on one side and ctenoid on the other.
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This species has specialized scales, which are called ganoid scales, and it has nostrils or nares on tentacles that protrude from the head.
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Another interesting plant was Cunda origanoides (dittany), seen by many of the participants, including the trip leader, for the first time.
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Cycloid Fish Scale - The primary types of fish scales include placoid, cosmoid, ganoid, ctenoid, and cycloid scales.
Undefined
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The dorsal and anal fins of the longnose gar are located far back on the body, which is encased in a heavy armor of interlocking, rhomboid, ganoid scales.
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Dense, equidimensional elements, such as teeth and ganoid fish scales, dominate the sandstone assemblage.
CONGRATS LAURA!!!
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With the Old Red Sandstone the ganoids were ushered upon the scene in amazing abundance; and for untold ages, comprising mayhap millions of years, the entire ichthyic class consisted, so far as is yet known, of but these two orders.
The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed
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The characteristic ‘organoid’ pattern helps distinguish fibrous hamartoma of infancy from rhabdomyosarcoma and from infantile fibrosarcomas.
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This then moves to the large intestine with many folds that leads to the anus in the anterior end of the fish where wastes are excreted. gars), have Ganoid scales which are thick diamond-shaped scales covered in a substance called ganoin.
CreationWiki - Recent changes [en]
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The actinopterygians quickly jettisoned their ganoid scales and thus dispensed with the need for most endochondral bone.
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ganoid fishes swarmed during the earlier geological periods
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Instead of rudimentary trilobites, I noticed remains of a more perfect order of beings, amongst others ganoid fishes and some of those sauroids in which palaeontologists have discovered the earliest reptile forms.
Journey to the Interior of the Earth
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Gar species in North America are easily recognized by their long snouts, sharply toothed jaws, non-overlapping and diamond shaped ganoid scales, and posterior placement of dorsal and anal fins on the body.
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The ganoids of which the sturgeon and garpike are examples, with heavy plates or scales.
Scouting For Girls, Official Handbook of the Girl Scouts
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In the ganoids the upper lobe of the tail fin is the largest.
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I tried to follow Agassiz's scheme of division into the order of ctenoids and ganoids, with the result that I found one of my species of side-swimmers had cycloid scales on one side and ctenoid on the other.
Louis Agassiz as a Teacher; illustrative extracts on his method of instruction
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The most ancient known fish is a Pteraspis, one of the bucklered ganoids or plated fishes -- by no means a very low type -- allied to the sturgeon
Darwinism (1889)
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Dense, equidimensional elements, such as teeth and ganoid fish scales, dominate the sandstone assemblage.
CONGRATS LAURA!!!
