A MONOGRAPH 



OF A 



FOSSIL DINOSAUR 



{SCELIDOSAURUS HARBISONII, Owen) 



OF THE 



LOWER LIAS. 



PART II. 



The continued attention paid by James Harrison, Esq., to the organic remains 

 discovered during the quarrying operations on the face of the cliff of Lower Lias at 

 Charmouth, Dorsetshire, with liberal encouragement to the workmen, has procured 

 for the original discoverer of the first indication of the Scelidosaur the materials 

 for the present account of an almost complete skeleton of that extinct reptile. 



Following in the track opened out by the discovery of the skull described in 

 the preceding Monograph,* about twelve successive blocks of Lias were secured, 

 with more or less evident indications of included bones, all of which, together 

 with the skull, have been purchased for the British Museum. Subsequent com- 

 plete exposure of the included organic remains has brought to light the entire 

 vertebral column of the trunk and tail, to very near the termination of the latter; 

 the scapulo-coracoid arch and part of one fore limb being associated with the 

 thorax, and the iliac bones and both hind limbs with the sacrum. 



In the operation of clearing off the matrix, scattered dermal bones first presented 

 themselves, and these were removed, with a note of their position, when it became 

 plain that they did not touch or rest upon any part of the endo-skeleton. This 

 being reached, the dermal bones in contact with it were left, save where they con- 



* Volume of the Palseontographical Society for 18o9, p. 7, Plates IV, V, and VI. 



1 



