ON THE FAUNAL SUCCESSION IN THE CARBONIFEROUS LIMESTONE. 2G0 



In collaboration with Dr. Matley, I hope to complete the account of 

 our work on the Carboniference Sequence at Malahide (Co. Dublin), and 

 to make further progress with the correlation of the Lower Carboniferous 

 Bocks of Fife. 



InvesHgatioii of the Fauna ami Flora of the Trias of the British Isles. — 

 Sixth Report of the Committee, consisting of Professor W. A 

 Herdman {Chairman), Mr. J. LoMAS (Secretari/), Professor W. W 

 Watts, Professor P. F. Kendall, Professor A. C. Seward, Messrs* 

 H. C. Beasley, E. T. Newton, and W. A. E. Ussher, and 

 Dr. A. Smith Woodward. (Brawn up hy the Secretary.) 



[Plates V. and VI.] 



The work of the Committee dui-ing the past year has been mainly 

 concerned with an attempt to unravel and classify some of the curious 

 tracks and markings— organic and inorganic — so frequently found 

 associated with footprint-bearing slabs in the Triassic rocks. As 

 many of these are in soft marl and cannot be preserved, advantage 

 has been taken of a large exposure of marl made at Storeton in the 

 latter part of 1907 and the early months of 1908. 



Two marl bands which in former excavations were separated by 

 3 or 4 feet of sandstone have coalesced in the north portion of the 

 quarry now being worked. This probably means that the shores of the 

 lake or pool in which the marls were deposited have been reached. 



Under these conditions a new set of phenomena appear, mainly 

 characterised by tracks and burrows of invertebrates, plant remains, 

 and curious markings simulating organic forms. 



In the present Report Mr. H. 0. Beasley describes some of these 

 forms, and he hopes to complete his investigations in time for next 

 year's Report. 



Mr. H. A. Allen also contributes a list of the Triassic fossils in the 

 Warwick Museum, and Mr. A. R. Horwood supplements the Biblio- 

 graphical Notes contained in the last Report. 



Some Rhynchosauroid skulls from Grinshill have lately been acquired 

 by the Manchester Museum which show details of anatomical structure 

 not hitherto observed. These are now under examination, and the 

 Committee hopes to include a full description of them next year. 



Report on Tracks of Invertebrates, Casts of Plants, d'c, and Markings 

 of uncertain origin from the Loioer Keuper. Part I. By H. C. 

 Beasley. 



The sandstones and marls of the Lower Keuper frequently show 

 a great variety of superficial markings v/hich, whilst bearing no 

 resemblance to the footprints of vertebrates, may give us some informa- 

 tion regarding the invertebrate fauna and the flora as well as some 

 indication of their physical surroundings. 



Besides these there are markings due to movements in the rock itself 

 during and subsequent to its consolidation. 



The first requirement is the division of the markings due to organisms 

 from those due to purely physical causes. Here we are met by two chief 



