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| Keywords: The Quarterly journal of the Geological Society of London (13937426081).jpg 548 MR T ROBERTS Otf THE UPPER <br> In Rutlandshire and the southern part of Lincolnshire Prof Judd <br> recognizes the following zoues in the Oxford Clay ” <br> 6 Clays with Ammonites of the group of the cordati <br> 5 Clays with Ammonites of the group of the ornati <br> 4 Clays with Belemnites 7ia status <br> 3 Clays with Belemnites Oivenii <br> 2 Clays with Nucula <br> 1 Kellaways Rock <br> Pive of these zones are stated to occur in south-west Lincoln- <br> shire f the sixth uppermost being concealed by drift <br> The pits at Bardney Langworthy Bishop's Xorton and south of <br> Peaseholme were visited by the author but the Oxford Clay may <br> also be seen in several other localities The most important sec- <br> tions are the following ” <br> Immediately to the north of Bardney Station dark blue clays <br> are worked for brick-making These clays have yielded the follow- <br> ing fossils ” <br> Plesiosaurus phalanges <br> Ichthyosaurus -vertebra <br> Ammonites cordatus Sow <br> Eugenii Hasp <br> Cerithiuni muricatum Sow <br> Pinna sp <br> Gryphsea dilatata Sow <br> Serpula sulcata Sow <br> tricarinata Sow <br> The following Ammonites t now in the Jermyn Street Museum <br> are also recorded § from this locality ” <br> Ammonites perarmatus Sow <br> excavatus Sow <br> biplex Sow <br> Ammonites rnacrocephalus Sow <br> arduennensis J ' Orb <br> plicatilis Sow <br> Most of the Bardney fossils are characteristic of Judd's zone of <br> cordati Ammonites They are also found in the uppermost zone of <br> the Oxford Clay of Huntingdonshire <br> Geology of Rutland c Mem Geol Surv p 232 <br> t Geology of S W Lincolnshire Mem Geol Surv p 70 <br> Some doubt having been expressed as to the correct determination of these <br> fossils I have taken the opportunity since the paper was written of closely <br> examining them <br> The two first-named species in the list are correctly given <br> The specimen from which Amm biplex is named consists of a portion of <br> two whorls The whorls are round and one of them shows a well-marked <br> constriction Each of the primary ribs is divided into two or three secondary <br> ones and the latter are considerably smaller than the former This distin- <br> guishes it from Amm biplex where the divided and undivided ribs are equally <br> thick The specimen is near to if not identical with Amm convolutus dilatatus <br> Quenst <br> The so-called Amm macrocephahis shows the back and a portion of one side <br> of the outer whorl only and this is very much crushed The primary ribs are <br> less numerous than in a typical example of this species and are more nearly <br> allied to those of a mature Amm marice The specimen is however too badly <br> preserved for correct determination <br> ¢ The remaining species Amm arduennensis and Amm plicatilis may be <br> correctly named but the specimens are badly preserved and do not show <br> sufficient characters to identify them with any degree of certainty <br> § Surv Mem sheet 83 p 77 36940377 113696 51125 Page 546 Text 45 http //www biodiversitylibrary org/page/36940377 1889 Geological Society of London NameFound Ammonites cordatus NameConfirmed Ammonites cordatus NameFound Ammonites perarmatus NameConfirmed Ammonites perarmatus Sowerby 1822 NameFound Belemnites NameConfirmed Belemnites EOLID 4780330 NameBankID 4089090 NameFound Ichthyosaurus NameConfirmed Ichthyosaurus EOLID 13226022 NameBankID 4204055 NameFound Nucula NameConfirmed Nucula EOLID 10719654 NameBankID 2691879 NameFound Pinna NameConfirmed Pinna EOLID 57673 NameBankID 2692221 NameFound Plesiosaurus NameConfirmed Plesiosaurus EOLID 4532515 NameBankID 4302234 NameFound Serpula sulcata NameConfirmed Serpula sulcata Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 45 1889 Geology Periodicals Smithsonian Libraries bhl page 36940377 dc identifier http //biodiversitylibrary org/page/36940377 smithsonian libraries Information field Flickr posted date ISOdate 2014-04-21 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13937426081 2015-08-26 05 53 30 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1889 Photos uploaded from Flickr by Fæ using a script | ||||
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