Keywords: The Quarterly journal of the Geological Society of London (13365422043).jpg 268 <br> PROCEEDINGS OF THE GEOLOGICAL SOCIETY Jail 23 <br> given in a future paper The organic remains found here during a <br> very short visit were as under <br> Cytherea obliqua Desk Teeth of Lamnae <br> Natica glaucinoides Sow <br> Returning to the main hue of outcrop we reach about midway <br> between Maidenhead and Uxbridge the small village of Hed erley <br> immediately to the south-west of which in a brick-field on the slope <br> of the hill is a very interesting section first visited by Mr Morris <br> and myself in 1842 at which time the section was much clearer than <br> I found it last autumn The abundance and fine state of preserva- <br> tion of the organic remains at this place far surpass anything that <br> we had then or that I have since seen in any part of the tertiaries <br> westward of London excepting perhaps Sonning Hill The fossils <br> are preserved in large tabular masses of calcareous clayey green sand <br> containing a few rounded flint pebbles at the base of the London <br> clay and immediately overlying the mottled clays See fig 13 <br> Fig 13 Section at Hedgerley <br> a Mixed gravel and clay <br> b London claj' 1 brown and bluish clay with septaria ; <br> 2 brownish clay Fossils scarce in these beds which <br> attain a thickness of 35 feet at a short distance south- <br> ward <br> Blackish clayey sand and green sand underlaid by flat <br> tabular masses of green sand with a calcareous cement <br> and full of fossils The small round flint pebbles not <br> numerous <br> Mottled clays light greenish grey and red <br> The chalk is reached at a depth of 45 feet beneath c <br> of stratum c at Hedgerley <br> Ostrea <br> Pectunculus Plumsteadiensis Soiv <br> Panopsea intermedia Soiv <br> Pleurotoma large smooth sp <br> Pyrula tricostata Desh <br> Rostellaria Sowerbyi Mant <br> n sp smaller <br> Tellina <br> Scalaria <br> Vertebrae of fishes <br> Teeth of Lamnae <br> Wood in fragments <br> A boring Mollusk probably a Lithodo- <br> Organic remains <br> Cardium nitens Sow <br> Plumsteadiense Sow <br> n sp a <br> Cassidaria striata Sow <br> Corbula revoluta Sow <br> Cytherea obliqua Desh <br> ovalis var Sow <br> Ditrupa plana Sow sp <br> Fusus large finely striated sp <br> broad smooth sp <br> Glycimeris <br> Modiola elegans Sow <br> Natica glaucinoides Sow <br> Hantoniensis Pilk mus <br> Nucula <br> The concretionary calcareous masses have a brown and weathered <br> appearance and have been here and there bored into by some <br> mollusk These blocks are hterally full of shells amongst which <br> the Cardium n sp o Cytherea obliqua Natica glaucinoides Nucula <br> Rostellaria Sowerbyi and the Ditrupa plana are most abundant <br> The shells are well-preserved soine with their nacre but as at <br> Sunning Hill their substance is rather soft and friable 36934123 113689 51125 Page 268 Text v 6 http //www biodiversitylibrary org/page/36934123 1850 Geological Society of London NameFound Cardium NameConfirmed Cardium EOLID 50301 NameBankID 2693257 NameFound Cardium nitens NameConfirmed Canthium nitens DC EOLID 1295347 NameFound Cassidaria striata NameConfirmed Cassidaria striata Lamarck 1816 NameFound Corbula revoluta NameConfirmed Corbula revoluta NameFound Cytherea obliqua NameFound Ditrupa plana NameConfirmed Ditrupa plana NameFound Fusus NameConfirmed Fusus EOLID 2988518 NameBankID 4173880 NameFound Glycimeris NameConfirmed Glycimeris EOLID 4728187 NameBankID 4178508 NameFound Modiola elegans NameConfirmed Modiola elegans NameBankID 6464534 NameFound Natica glaucinoides NameFound Nucula NameConfirmed Nucula EOLID 10719654 NameBankID 2691879 NameFound Ostrea NameConfirmed Ostrea EOLID 10719983 NameBankID 2692450 NameFound Panopsea intermedia NameConfirmed Panopaea intermedia NameFound Pectunculus NameConfirmed Pectunculus EOLID 4728114 NameBankID 4286045 NameFound Pleurotoma NameConfirmed Pleurotoma EOLID 3035199 NameBankID 4302856 NameFound Plumsteadiensis NameFound Pyrula tricostata NameFound Rostellaria NameConfirmed Rostellaria EOLID 4873050 NameBankID 3940657 NameFound Scalaria NameConfirmed Scalaria EOLID 4856646 NameBankID 245500 NameFound Tellina NameConfirmed Tellina EOLID 50297 NameBankID 2693370 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 6 1850 Geology Periodicals Smithsonian Libraries bhl page 36934123 dc identifier http //biodiversitylibrary org/page/36934123 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-23 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13365422043 2015-08-26 12 00 10 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1850 Photos uploaded from Flickr by FĂŚ using a script |