Mesozoic Fossil Research Articles

Mesozoic Fossils of the Yellowstone National Park. T. W. Stanton

Previous articleNext article FreeReviewsMesozoic Fossils of the Yellowstone National Park. T. W. Stanton W. N. LoganW. N. Logan Search for more articles by this author PDFPDF PLUS Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinkedInRedditEmail SectionsMoreDetailsFiguresReferencesCited by The Journal of Geology Volume 8, Number 4May - Jun., 1900 Article DOIhttps://doi.org/10.1086/620820 Views: 75Total views on this site PDF download Crossref reports no articles citing this article.

I.—Further Notes on some Mollusca from South Australia

In the Geological Magazine for 1884 some Mesozoic fossils, obtained from near Mount Hamilton and the Peak Station, were noticed by me with figures and descriptions where the specimens were fairly well preserved. Since then additional specimens have been procured from adjoining districts. The general character of the facies is fairly similar to that already noticed in 1884; but on the whole, perhaps, the specimens are scarcely so well preserved. Since then additional specimens have been procured from adjoining districts. The general character of the facies is fairly similar to that already noticed in 1884; but on the whole, perhaps, the specimens are scarcely so well preserved. According to the opinion of those who have had most experience, these fossils may be regarded as of “Cretaceo-Jurassic” age, though I am not aware tliat such undoubted Cretaceous forms as Ancyloceras, etc., have been discovered in the beds whence the fossils forming the subject of these notes have been derived.

On the Crystalline Schists and their Relation to the Mesozoic Rocks in the Lepontine Alps

At the close of the year 1888 I read before this Society a paper “ On two Traverses of the Crystalline Rocks of the Alps,“ in which I maintained that these rocks could be arranged in certain fairly definite groups, which exhibited a stratigraphical succession. On this communication only two criticisms of importance were offered. Of these one expressed a doubt of the value of the method which I had adopted in my work; the other affirmed that certain schists, regarded by me as members of a very ancient series, probably Archæan, had been demonstrated by the presence of Mesozoic fossils to be of the latter age ; or, in other words, that, in the Alps, ordinary sediments deposited in the Jurassic epoch had been subsequently converted into true crystalline schists, a result of metamorphic action which I had implicitly affirmed to be incredible. The former criticism, which amounted to an assertion that the general succession of the Alpine rocks could only be ascertained by very detailed mapping, in my opinion, indicated an imperfect knowledge of the subject, while it was scientifically unsound and historically incorrect. It indicated an imperfect knowledge, because, as a matter of fact, a considerable part of the Alps has already been mapped, not by irresponsible amateurs but by official surveyors, and it was with the interpretation of these maps that I was largely concerned; and because it assumed that an impossibility could be performed.As I have had the honour to fill the same position in the Alpine Club that I have done in this Society, I may be affirm without fear of contradiction that a very elaborate petrographical mapping of the Alps is impossible ; for the most painstaking and conscientious of surveyors must assume much that is incapable of demonstration.

Scientific results of explorations by the U. S. Fish Commission steamer Albatross. No, X, On certain Mesozoic fossils from the Islands of St. Paul's and St. Peter's, in the Straits of Magellan

Scientific results of explorations by the U. S. Fish Commission steamer Albatross. No, X, On certain Mesozoic fossils from the Islands of St. Paul's and St. Peter's, in the Straits of Magellan

On some Mesozoic fossils from central Australia

On some Mesozoic fossils from central Australia

On some Mesozoic fossils from the Palmer River, Queensland

On some Mesozoic fossils from the Palmer River, Queensland

Geological Survey of Canada. Mesozoic fossils. Vol. i. part ii. On the fossils of the Cretaceous rocks of Vancouver and adjacent Islands in the Strait of Georgia. By J. F. Whiteaves, F.G.S. Montreal, 1879

<i>Geological Survey of Canada. Mesozoic fossils</i>. Vol. i. part ii. <i>On the fossils of the Cretaceous rocks of Vancouver and adjacent Islands in the Strait of Georgia</i>. By J. F. W<scp>hiteaves</scp>, F.G.S. Montreal, 1879

Description of the Palæozoic and Mesozoic Fossils of Queensland

Introduction . Mr. Daintree's late explorations in Queensland have added much to our knowledge of the distribution of extinct life over that extensive colony. A slight history or résumé of the progress of geological and palæontological discovery in Australia may not be out of place, and will show the difficulties attending research in a country almost untrodden and only, of necessity, very partially examined. It is hoped that the local societies may be induced to work up the varied and rich fossil fauna surrounding those cities now so extensively peopled in New South Wales, Queensland, and South Australia; and it is partly with this view that we are induced to figure the species found fossil in Queensland, many of which are new, and a few common to Asia and Europe. A knowledge of the wide distribution of identical forms and extension of old seas, under different conditions, can only be established by the united labours of many in the same field of investigation. India is now being well explored, America equally so, Southern Africa is being gradually examined; and much of Victoria has been carefully surveyed; yet we know little of the real palæontology of Australia, owing to the few published detailed descriptions and figures of the fossil fauna of the stratified rocks of the country. The labours, however, of the Rev. W. B. Clarke upon the spot, and of Professor Owen and Mr. Moore England, have thrown some light upon the distribution of extinct life in those rocks. At the

Australian Mesozoic Geology and Palæontology

Abstract T he author referred to the observations of Professor M‘Coy and the Rev. W. B. Clark on the occurrence of fossils of Mesozoic age in Australia, and then proceeded to notice the species which he had obtained from that region. Fossils of Mesozoic type occur both in Western Australia, in the centre of the Continent on Stuart’s route, and in Queensland; but the specimens have hitherto been found in apparently drifted blocks, and nothing is known of the bedded rocks from which they are derived. The author stated that the Australian Mesozoic fossils agree, not only in genera, but also in many cases in species, with British forms; and he gave a list of species from Western Australia, identical with British species from the Middle and Upper Lias, the Inferior Oolite, and the Cornbrash. Of the fossils from Queensland also, many are said to be identical with, or very nearly allied to, British species; but the author regards the general type of the Queensland remains as referring them to the Upper Oolite. A gigantic species of Crioceras is regarded by the author as possibly indicative of the occurrence of Neocomian deposits in Australia. The fossil evidence upon which Professor M‘Coy inferred the occurrence of the Muschelkalk in Australia was said by the author to be nugatory, his supposed Myophoria proving to be a Trigonia nearly allied to T. gibbosa of the Portland Oolite, and his doubtful Orthoceras a small Serpula . The author had found no indications of the existence of Triassic or Liassic deposits in Queensland. The blocks from Western Australia, referred by the author to the Middle Lias, contain Myacites liassianus (Quenst.), and are quite as highly ferruginous as the English Marlstone. The species identified by the author with British Oolitic species would indicate a range from the Inferior Oolite to the Cornbrash; the author suggested that the species may have had a longer range in time in Australia than in England, or that the subordinate divisions of the Oolite were not clearly marked in the Australian Mesozoic deposits. He is inclined to refer the fossils to the period of the Inferior Oolite. The author inferred, from the occurrence of these Mesozoic fossils in drifted blocks at the two extremities of Australia, separated by 38° of longitude, that an enormous denudation of rocks of the secondary series has taken place over a considerable part of Australia. Descriptions of a great number of new species were appended to the paper.