GEOLOGY AND PALEONTOLOGY OF THE SCHOHARIE VALLEY 367 



lime rubblerock — a rock composed of broken or worn fragments or pebbles 

 of limestone or organic fragments (sbells, corals etc.) ; also called 

 calcirudyte 



lime sandrock — a rock made up of lime sand ; also called calcarenyte 

 lines of growth — the lines on the shell marking the progressive increase 

 in size 



lithic — pertaining to the nature of rock 



living chamber — the last and largest chamber of the cephalopod shell, in 



which the animal lives 

 lntaeeous — of an impalpable or mudlike grain invisible to the eye 

 lobe — the backward projecting portion of the suture line in the Goniatites 



and Ammonites 



lobes, of glabella— the parts of the glabella of the trilobite isolated by the 

 various depressions or furrows. They comprise anterior, lateral and 

 posterior 



marginal rim — in trilobites the rim surrounding the front of the head 

 shield 



master stream — the principal stream of the region 



metamorphic — altered; there are three types of metamorphism : static, or 

 by a process of aging ; dynamic, or by disturbing forces as mountain 

 folding, etc. ; thermic, or by contact with heated bodies as dikes, flows 

 or sills 



monadnoek — an erosion remnant projecting above the level of a peneplain 

 moniliform — beadlike 



moraine, ground — the material carried along frozen into the bottom of a 



glacier and deposited on the melting of the ice 

 mould, external — the impression made by a shell or other body in the sand 



or mud in which it is buried — impression of exterior 

 mould, internal — the impression received by the sand or mud filling a shell 



or other hollow — impression of interior 

 mucronate — having slender projecting ends 



mudcracks — the cracks formed by the drying up of beds of mud. They 

 commonly surround polygonal plates 



mural pores — the pores in the walls of the corallites of Favosites and re- 

 lated forms 



muscular impressions, muscular scar — scars on interior of shells, etc. 

 made by attachment of the opening and closing muscles 



nasute — noselike 



nautilicone — coiled shell with whorls impressing each other as in Nautilus 

 nautiloid — resembling or related to Nautilus 

 noded— -bearing knobs or nodes 



□oncoiling — not possessing, or losing the power to coil 

 nonmarine — not formed by deposition in the sea — continental 

 nonumbilical — not haying a hollow or depression at the base of the axis 

 of coiling (umbilicus) 



obsequent stream — streams flowing down the liiface of the Cuestfl in the 



direction opposite to that of the consequent st reams 

 occipital spine— spine on the hasal or occipital ring of the head of trilobites 



