156 



TRANS. OF THE ACAD. OF SCIENCE. 



Vertical Section of Silurian Strata of Cape Girardeau County. 



BY B. F. SnUMARD. 



Delthyris Shaly 

 Limestone. 



350 



Variegated gray and 



yellow Argillaceous 



Limestone. 



40 



10* 



Gray Limestone and 



Variegated Shale. 



Red Argillaceous 



Limestone. 



Variegated 

 Limestone. 



Gray Limestone. 



Cape Girardeau 

 Limestone. 



Yellow Shale. 

 Blue Shale. 



Cape Girardeau 

 Sandstone. 



Dark Shale. 



Receptaculite 

 Limestone. 



Trenton Limestone. 



Black River 

 Limestone. 



1st Magnesian 

 Limestone. 



Saccharoid 

 Limestone. 



2d Magnesian 

 Limestone. 



2d Sandstone. 



3d Magnesian 



Limestone. 



26 



60 



loO 



Dalmania tridentifera, Neily's Landing. 

 Phacops, Cheirurus, Pen- Vancil's Landing. 

 tremites, Platyostoma Devil's Tea-table, 

 (several species), Stropho- Shepherd's Landing, 

 mena depressa, Orthoce- McLane's Creek. 

 ras, etc. J Indian Creek. 



Contains nodules of Py- 

 rites, Platyostoma, Dal- 

 mania, etc. 



Near Shepherd's Landing 

 Mouth of Bainbridge Or. 



Abounds in Graptolites. 



Bainbridge, Shepherd's 

 Landing. 



Orthoceras, Dahnania, 

 Crinoids. 



2 miles N. of Cape Girar 

 deau. 



2 miles N. of Cape Girar 

 deau. 



Halysites escharoides. 



2 miles N. of Cape Girar- 

 deau. 



Mouth of Cape Creek. 



Acidaspis Halli, Cyphas- 

 pis Girardeauensis, Prce- 

 tus depressus, Glyptocri- 

 nus fimbriatus, etc. 



Mouth of Cape Creek. 



No fossils discovered. 



Head of Caney Creek. 



No fossils discovered. 



i Cape Girardeau, Caney Cr 

 Head of Shawnee Cr. 



Isotelus gigas, Rhynco- 



nella capax, Orthis occi- Near Cape Girardeau. 



dentalis, Chaetetes, etc. 



Receptaculites Oweni(?) 

 Illaenus, Cheirurus, Asa- 

 phus Iowensis. Stropho- 

 mena tilitexta, S. alterna- 

 ta, Lepta?na sericea, etc. 



Cape Girardeau. 

 Sources of Caney Creek. 

 Mississippi River, 5 miles 

 below Cape Girardeau 



Strophomena filitexta, S. 

 deltoidea, Leptaena seri- 

 cea, Orthis tricenaria, 0. 

 250 disparilis, O. subsequata, 

 Chaetetes lycoperdon, etc. 



150 



80 



150 



Cape Girardeau. 



Jackson. 



Cap. La Cruche Creek. 



Appleton. 



Cythere(?) sublaevis. 



Near Jackson. 



No fossils found. 



Hubble's Creek. 

 Head of Byrd's Creek. 

 Near Jackson. 



No fossils found. 



Byrd's Creek. 



Conocephalus, Murchiso- Central portion of the 

 nia, Loxonema, etc. County. 



Head of Craney Creek. 

 Fork of White-water Hiv. 



Conocephalus, Axionel- 



lus, Pleurotomaria, Mur- Western tier of Town- 



chisonia, etc. ships. 



