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| Keywords: The Quarterly journal of the Geological Society of London (13859705753).jpg 56 <br> G E VINE ON THE WEDLOCK POITZOA <br> It is only after very careful study that I introduce to the paleon- <br> tologist as a palaeozoic type this remarkable genus Haime in his <br> ' Jurassic Bryozoa ' vindicates his use of the word JSpiropora in place <br> of the many synonyms which have been introduced into scientific <br> literature since the time of Lamouroux There are two very distinct <br> 4 5 6 <br> -Spiropora regularis Vine <br> 5 <br> 4 Shows the general habit and mode of branching and character of unworn <br> cells X 12 5 Cells worn showing the internal cast of the tubular cell <br> X 24 6 Outline cells of a worn specimen showing arrangement in <br> spirals X 24 <br> features in the genus ; and these as defined by Jules Haime may be <br> briefly noted ” 1 The Zoarium is dendroid with forked branches ; <br> cells elongated and closely connected This feature is apparent in <br> the Palaeozoic type 2 The peristomes are circular and more or <br> less projecting and they form at the surface of the branches circles <br> which usually are not closed but each constitutes one of the turns of <br> a spire so many times interrupted These rings are the more regular <br> the more distant they from each other When they are very close <br> they are often difficult to recognize This feature is also present in <br> the Palaeozoic type Haime however speaks of his species as being <br> perforated with very small and round pores This feature is not <br> present in this early type; indeed perforated pores are very rare in <br> Palaeozoic Polyzoa I have seen them in some Carboniferous species <br> of Fenestella f ; but even in these they are of rare occurrence unless <br> specimens are specially prepared to show them In his Eocene <br> Bryozoa Prof Eeuss figures and describes three species of Spiro- <br> pora ” S tenuissima Eeuss having somewhat the general character <br> of Entalopliora ; S pulchella Eeuss ; and S conferta Eeuss The <br> Silurian species more closely resembles S pulchella than the other <br> two species of Eeuss both in the character and in the ordinary <br> arrangement of the cells It must not however be taken as evidence <br> satisfactorily settled that the Palaeozoic type blends naturally with <br> the Oolitic and Tertiary types This is not so The evidence is <br> Haime's ' Jurassic Bryozoa ' Genus viii pp 193 194 <br> t In F plebeia M'Coy In Alecto frondosa James the punctured pores are <br> a marked feature ' Tertiary Bryozoa of the Alps ' 36935823 113692 51125 Page 56 Text 38 http //www biodiversitylibrary org/page/36935823 1882 Geological Society of London NameFound Alecto frondosa NameConfirmed Alecto frondosa NameBankID 6235517 NameFound Bryozoa NameConfirmed Bryozoa EOLID 2060 NameBankID 230461 NameFound Fenestella NameConfirmed Fenestella EOLID 13185859 NameBankID 234914 NameFound Fenestella plebeia NameConfirmed Fenestella plebeia NameFound Polyzoa NameConfirmed Polyzoa EOLID 64139 NameBankID 2764675 NameFound Spiropora conferta NameConfirmed Acropora conferta Brook EOLID 4681152 NameFound Spiropora pulchella NameConfirmed Spiropora pulchella NameFound Spiropora regularis NameConfirmed Spiropora regularis Vine NameFound Spiropora tenuissima NameConfirmed Spiraea tenuissima CarriĹ re EOLID 627031 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 38 1882 Geology Periodicals Smithsonian Libraries bhl page 36935823 dc identifier http //biodiversitylibrary org/page/36935823 smithsonian libraries Information field Flickr posted date ISOdate 2014-04-15 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13859705753 2015-08-26 07 53 05 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1882 Photos uploaded from Flickr by Fæ using a script | ||||
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