Geology of the Lower Mitchell River. 33 



devonian shales, the sequence of the strata from the creek bed 

 to the level of Morrison's house being : — 



Gravel and clay . - - - - 



Ironstone bands, with fossils 



Devonian shales - - - - - 



Total 110 feet. 



These measurements are only up to the terrace bank on which 

 the house stands. The hill, still shewing drifts and gravel 

 washes, continues by a gradual slope up to Morrison's gate on 

 the main road, where an elevation of 250 feet above the river was 

 recorded. 



A longitudinal section at the actual contact of the tertiary 

 and devonian strata is given in Fig. 9. Three bands of 

 fossiliferous ironstone, iuterstratified with sands and gravels, 

 occur in a vertical height of 48 feet. Both in Morrison's Bluff 

 and at the contact section, fossil casts were collected from near 

 the base up to the summit of the terrace; the most prolific iron- 

 stone bands were, perhaps, one just under the terrace level and 

 another adjoinining the contact section. The blocks collected 

 are full of fossils and a great variety of species is represented. 

 On the whole, the casts are inferior in clearness to those at 

 Boggy Creek, and a larger quantity of material was broken up 

 to obtain examples which could be definitely named. Impressions 

 in wax or plaster were taken in almost every case. 



Fossils from Moitun Ckkek. 



Actaeon scrobiciilatiis, T. Woods Tiirritella murrayana, Tate 



Scaphander tenuis, Harris Rissoia vel Rissoina sp. 



Bullinella exigua, T. Woods Calyptropsis turbinata, T. Woods 



Mangilia (?) sp. Natica polita, T. Woods 



Marginella winteri, Tate Natica vixumbilicata, T. Woods (?) 



Marginalia woodsii, Tate Eulima sp. 



Marginella sp. Cantharidus sp. 



Volutilithes antiscalaris, McCoy (?) Dentalium sp. 



Fusus dictyotis, Tate (prob.) Glycimeris cainozoica, T. Woods 



Latirus sp. Glycinaeris laticostata, Q. and G. 



Trophon sp. Limopsis morningtonensis, Pritchard 



Tritonofusus sp. Cucullaea corioensis, McCoy 



Typhis evaricosus, Tate Nucula tenisoni, Pritchard 



Lampusia tortirostris, Tate Leda woodsii, Tate 



Turritella tristira, Tate Cardita compacta, Tate (?) 



3 



