UPWARE AND BRICKHILL NEOCOMIANS. 73 



containing large isolated phosphatised masses of calcareous matter, 

 pale in colour, which are much tunnelled by Lithophagi (Liiho- 

 domus probably), and as having very similar-looking phosphatic 

 derived fossils, such as Ammonites Lamberti, Am. Conybeari, 

 Myacites, Ichthyosaur vertebra and fossil wood. It is also remark- 

 able for containing the same Lydian stones and quartz pebbles 

 and smaller grains as at Upware in the coarser beds. A similar 

 bed of ironstone, but much thinner, is found at Goslar at the 

 north foot of the Harz mountains. 



The Upper Neocomian beds (Judd) in all these places are but 

 poorly exposed and have yielded few fossils, so that we have small 

 means of comparison with our English series. 



But it is in the Brunswick Neocomians at Schb'ppenstedt that 

 we find the most interesting set of resemblances to our Upware 

 and Brickhill phosphatic beds. In this country we have a series of 

 clays above and limestones below, which have been divided into 

 zones and their fossils collected by Herr Geheimer von Strombeck 

 of Brunswick. The clay series is considered by Prof. Judd to 

 represent his Upper and Middle Neocomians, and the limestone 

 series he regards as Lower Neocomian. It is in the former group 

 that we should have expected to find the representatives of our 

 Upware beds. Such however is not the case, for in Prof. Judd's 

 lists (Quarterly Journ. Geol. Soc., Vol. xxvi.), Ammonites Des- 

 hdyesii, Leym., and Terebratula Moutoniana, d'Arch., are the only 

 species common to our phosphatic beds and the Brunswick Upper 

 Neocomian. On the other hand Avicula Cornueliana, d'Orb.; 

 Panopcea plicata, Sby.; Lima longa, Roemer; Exogyra sinuata, 

 Sby.; Terebratula Moutoniana, d'Arch.; RhyncTionella antidichotoma 

 and Serpula Phillipsii, Roemer ; are common to the Middle 

 Neocomian. We must however remember that much of the want 

 of correspondence between the fossils of these beds and our 

 Upware fauna is undoubtedly due to the difference in the pre- 

 vailing physical conditions. 



But coming now to examine the lower group of Limestones, &c., 

 we find a remarkable set of repetitions of the characters of our 

 Upware and Brickhill phosphatic series. These beds are exposed in 

 several quarries near Berklingen to the S.W. of Schoppenstedt, and 

 the following section is seen to the east of the village of Grosser 

 Vahlberg: 



