| 单词 | ganoid |
| 例句 | A genus of freshÐwater ganoid fishes, exclusively confined to North America; called bowfin in Lake Champlain, dogfish in Lake Erie, and mudfish in South Carolina, etc. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z An order of ganoid fishes of which the bichir of Africa is a living example. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z E. of Cupar, have been found great quantities of fossils of ganoid fishes. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" 2012-01-31T03:00:17.257Z They differ from the ganoid fishes by having soft scales and a complete bony skeleton. Fast Nine or, A Challenge from Fairfield 2011-09-22T02:00:24.220Z Diplacan�thus, a genus of ganoid fishes, found only in the Old Red Sandstone. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z A genus of ganoid fishes, including the sturgeons, having the body armed with bony scales, and the mouth on the under side of the head. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z Asterol�epis, a genus of primitive ganoid fishes, found only in a fossil state in the Old Red Sandstone. The New Gresham Encyclopedia. Vol. 1 Part 2 Amiel to Atrauli His researches led him to propose a new classification of fishes, which he divided into four classes, distinguished by the characters of the skin, as ganoids, placoids, cycloids, and ctenoids. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide There are seven living kinds of ganoid fish and all are found in fresh water. Fast Nine or, A Challenge from Fairfield 2011-09-22T02:00:24.220Z It is almost made up of fragments of spines, teeth and scales of ganoid fish. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 2 "Bohemia" to "Borgia, Francis" Most of the sharks lived in the sea continuously, but the ganoids frequenting the coastal waters appear to have migrated inland. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" Two of those pieces contained fossils of highly developed ganoids, similar to those found on Venus. The Long Voyage The ganoids of which the sturgeon and garpike are examples, with heavy plates or scales. Scouting For Girls, Official Handbook of the Girl Scouts The palate of this ancient ganoid is furnished with a curious dental apparatus, formed apparenly, like that of the recent wolf-fish, for the purpose of crushing shells. The Cruise of the Betsey or, A Summer Ramble Among the Fossiliferous Deposits of the Hebrides. With Rambles of a Geologist or, Ten Thousand Miles Over the Fossiliferous Deposits of Scotland The all but entire disappearance of the ganoids from creation is surely a curious and not unsuggestive circumstance. The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed They undoubtedly are the palatal teeth of the fossil extinct ganoid fish Lepidotus. More Science From an Easy Chair But on Earth we have weather, and it happened a long, long time ago, back in the days of three-toed horses and ganoid fish. Long Ago, Far Away The most common example of the ganoid fish is the sturgeon, which is heavily clad with a bony armor. Scouting For Girls, Official Handbook of the Girl Scouts On this, as on other occasions, I was struck by the complex and very various forms assumed by the ganoid scales of the Wealden. The Cruise of the Betsey or, A Summer Ramble Among the Fossiliferous Deposits of the Hebrides. With Rambles of a Geologist or, Ten Thousand Miles Over the Fossiliferous Deposits of Scotland There are ganoids in the river, but no sturgeons proper. The Andes and the Amazon Across the Continent of South America In the oldest secondary rocks of Britain and elsewhere there occur in abundance the teeth of a genus of ganoid fishes known as the Ceratodi. Falling in Love With Other Essays on More Exact Branches of Science It was a ganoid fish, like a sturgeon. Long Ago, Far Away Thus the oldest fish were most like our present ganoids and sharks, though differing much from both. The Whence and the Whither of Man A Brief History of His Origin and Development through Conformity to Environment; Being the Morse Lectures of 1895 The amount of design exhibited in the scales of some of the more ancient ganoids,—design obvious enough to be clearly read,—is very extraordinary. The Cruise of the Betsey or, A Summer Ramble Among the Fossiliferous Deposits of the Hebrides. With Rambles of a Geologist or, Ten Thousand Miles Over the Fossiliferous Deposits of Scotland No teeth have been discovered; but the body was covered with small ganoid scales, and there was an unsymmetrical tail-fin. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science The fish of the period belong almost entirely to the ancient orders of the ganoids and placoids. The Story of a Piece of Coal What It Is, Whence It Comes, and Whither It Goes But it was not a sturgeon, though sturgeons are now the main representatives of what once were innumerable ganoid species. Long Ago, Far Away Then it was noticed that our common fish formed a fairly well-defined group, but that the ganoids, including the sturgeons, gar-pikes, and some others, had at least traces of amphibian characteristics. The Whence and the Whither of Man A Brief History of His Origin and Development through Conformity to Environment; Being the Morse Lectures of 1895 The only modification which it occurs to me to suggest in this general view of the Phylogeny of the Vertebrata is, that the "Protamphirhine" was possibly more ganoid than shark-like. Critiques and Addresses The form of the "pectoral fins" was quite unique—these having the shape of two long, curved spines, somewhat like wings, covered by finely-tuberculated ganoid plates. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science Dura Den, a glen near Cupar-Fife, famous for the number of ganoid fossil fishes entombed in its sandstone. The Nuttall Encyclopædia Being a Concise and Comprehensive Dictionary of General Knowledge If, for example, his subject were the comparative anatomy of the cycloid and ganoid fishes, the difference in their scales was scarcely of vital importance to one's general culture. Tracks of a Rolling Stone Now we have seen that sharks and ganoids are older than cod. The Whence and the Whither of Man A Brief History of His Origin and Development through Conformity to Environment; Being the Morse Lectures of 1895 In a few minutes the huge beast had been cut up and slabs of him were hanging over a dozen camp fires, together with great scaly ganoid fish which had been speared in the lake. The Lost World Unequal total segmentation follows the same lines in the oldest fishes, the selachii and ganoids, which are directly descended from the cyclostoma. The Evolution of Man — Volume 1 In the Triassic and Jurassic, little progress was made among the fishes, and the ganoid was still the leading type. The Elements of Geology 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. A Journey to the Interior of the Earth The ganoids survive in a few species out of thousands. The Whence and the Whither of Man A Brief History of His Origin and Development through Conformity to Environment; Being the Morse Lectures of 1895 This preservation of ancient forms in islands appears to me like the preservation of ganoid fishes in our present freshwaters. More Letters of Charles Darwin — Volume 1 Amphibia, affinity of, to the ganoid fishes; vocal organs of the. The Descent of Man In the Cretaceous the teleosts, or bony fishes, made their appearance, while ganoids declined toward their present subordinate place. The Elements of Geology 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. The Education of Henry Adams The teeth of the Devonian ganoids show a complicated folded structure. The Elements of Geology A few thousand feet, more or less, of limestone were the liveliest amusement to the ganoid, but they buried the uniformitarian alive, under the weight of his own uniformity. The Education of Henry Adams |
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