30 HiCKLIXG, BritisJi Pcrniuin Footprints. 



Plate IV. 



Figs. 25, 26, 27. Footprints from the I'ermian (Rothliegende) 

 of Thiiringia. 



Figs. 28 to 2,2,- Footprints from the Carboniferous of North 

 America. 



Fig. 25. •<= Ichnitivi spiiaerodactyluvi, Pabst x ;|. 

 Left pes. 25^. Track of same X Jj-. 



Tambach, Thiiringia. 

 Fig. 26. = Jc/inium acrodactylitm, Pabst x |-. Left pes. 



Tambach, Thiiringia. 



Fig. 27. = Jc/niium ga7?ipsodactylufn, Pabst x |. 



Right pes and manus in correct relative position. 



Friedrichroda, Thiiringia. 



J'ig. 28. = T/ienaropus he/efodaciyitis, King x \. See King, '45. 

 Right pes and manus in approximately correct 

 relative position. 



Westmoreland Co., Pennsylvania. 



Fig. 29. Print found by Logan x \. See Dawson, '63. 



Right foot. Lower Carboniferous, Ilorton l^luff, 

 Nova Scotia. 



Fig. 30. Prints found l)y Dr. Harding x |. See Dawson '63. 

 Right pes and manus in natural relation. 



Carboniferous, Parrsboro', Nova Scotia. 



Fig. 31. — Droinopus agi/is, Marsh x j. See Marsh '94a. 

 Left pes and manus in natural relation. 



Coal Measures, Kansas. 



Fig. 32. = Sauropus primaevus, Lea x |. See Lea '55- 

 Left pes and manus in natural relation. 



Lower Carboniferous Red Shales, Pittsburgh, Pa. 



^'^- 33- = Baropus ietituSi Marsh x ^.,, See Marsh '94. 



Coal Measures, Kansas. 



