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| Keywords: The Quarterly journal of the Geological Society of London (12961147895).jpg 242 1 R0CEEDINGS OF THE GEOLOGICAL SOCIETY Maicll 24 <br> 2iid Santonian stage the lower part with Ostrea acutirostris <br> 0 santonensis Spondylus truncatus Janira quadricostata SjphceruUtes <br> Coquandi and Radiolites fissicostata <br> The upper part of fluviatile origin with Unio CyclaSy Omphalia <br> Coquandi Zekeli and 7 beds of lignite Cyrena glohosa and Ferussaci <br> Math Melanopsis rugosa Math and M gdllo-provincialis <br> Plan d'Aups near Sainte Baume and the environs of Mar- <br> tigues <br> This corresponds to the upper portion of the chalk of Gosau <br> 3rd Campanian and Dordonian stages from 400 to 500 metres <br> equal to from 1333 to 1666 feet of Lacustrine limestones with Cyclas <br> gardanensis Brongniartina and gallo-provincialis Math Ampullaria <br> prohoscidea Math Paludina angulata Math Lymnea longissima <br> Math c and containing 18 layers of lignites very different from <br> those which are worked lower down in the Santonian stage fig 3 It <br> is evident that these Lacustrine limestones correspond with the Upper <br> Chalk and with my Dordonian stage ; for they are covered by other <br> Lacustrine limestones which <br> are referred to the level of the ig- ' ”Section of the Freshwater <br> limestone of Rilly and there- Upper Cretaceous Beds of Fuveau <br> fore to the base of the Eocene <br> Thus in Lower Provence it is <br> evident that a complete change <br> must have been wrought in the <br> nature of the waters of the <br> Cretaceous Sea which after <br> the conclusion of the Santonian <br> period from being salt became <br> brackish and afterwards from <br> brackish fresh ” a circumstance <br> which favoured the develop- <br> ment of a population of flu- <br> viatile shells entirely unknown elsewhere and which were con- <br> temporary with the gigantic Eudistes of the Charente and those <br> of Provence which lived in the immediate vicinity of the lake <br> at the bottom of which the Carbonaceous deposits were pre- <br> cipitated <br> The classification of these Lacustrine sediments had been until <br> very lately the cause of great confusion and serious errors They <br> had been attributed at one time to the Miocene period at another <br> to the Eocene without a single reliable argument or a single fossil <br> in support of this opinion The new method of determining their <br> chronological order is justified not only by their position but also <br> by the very important fact that in the neighbouring Alps as well as <br> in Algeria where the upper chalk is exclusively of marine origin we <br> observe above the Santonian strata Ostrea vesicularis and Belem- <br> nitella mucronata species wanting in the corresponding strata of the <br> Bouches du Rhone which as we have seen having been deposited <br> in a lake can only contain Lacustrine shells My friend M Mathe- <br> ron is occupied at the present time in making out a catalogue of this 36103087 111288 51125 Page 242 Text v 25 http //www biodiversitylibrary org/page/36103087 1869 Geological Society of London NameFound Ampullaria NameConfirmed Ampullaria EOLID 10718936 NameBankID 241026 NameFound Brongniartina NameFound Cyclas NameConfirmed Cyclas EOLID 13750058 NameBankID 4131942 NameFound Cyrena NameConfirmed Cyrena EOLID 4757476 NameBankID 4134596 NameFound Janira quadricostata NameConfirmed Janeira quadricostata Frech 1916 NameFound Lymnea longissima NameConfirmed Usnea longissima Ach 1810 EOLID 2858821 NameFound M gdllo-provincialis NameFound Melanopsis rugosa NameConfirmed Melanopsis rugosa NameBankID 6220740 NameFound Omphalia NameConfirmed Omphalia EOLID 19035 NameBankID 244328 NameFound Ostrea acutirostris NameFound Ostrea vesicularis NameConfirmed Ostrea vesicularis NameBankID 6295388 NameFound Paludina angulata NameFound Radiolites fissicostata NameConfirmed Biradiolites fissicostatus NameBankID 5488246 NameFound Spondylus truncatus NameFound Unio NameConfirmed Unio EOLID 2979542 NameBankID 4388466 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 25 1869 Geology Periodicals Smithsonian Libraries bhl page 36103087 dc identifier http //biodiversitylibrary org/page/36103087 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-06 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12961147895 2015-08-26 15 50 54 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1869 Photos uploaded from Flickr by Fæ using a script | ||||
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