DIY History | Transcribe | Scholarship at Iowa | Coal Measures and Coal Mining in Iowa, including paleontology and a discussion on the coal formation; also the methods of mining by Russell T. Hartman, 1898 | Coal Measures and Coal Mining in Iowa by Russell T. Hartman, 1898, Page 233

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Coal Measures and Coal Mining in Iowa, including paleontology and a discussion on the coal formation; also the methods of mining by Russell T. Hartman, 1898

Coal Measures and Coal Mining in Iowa by Russell T. Hartman, 1898, Page 233

PLATE XI.

1.  Pleurotomaria carbonaria  137

2.  " [ditto for Pleurotomaria] tabulata  138

3.  " [ditto for Pleurotomaria] spaerulata  139

4.  " [ditto for Pleurotomaria] perhumerosa  140

5, a, b.  " [ditto for Pleurotomaria] grayvillensis  141

6, a, b.  " [ditto for Pleurotomaria] marconiana  142

7, a, b.  Murchisonia terebra  [?]

8.  Platystorna peoriense  144

9, a, b.  Bellerophon craseus  145

10, a, b.  " [ditto for Bellerophon] pericarinatus  146

11, a, b.  " [ditto for Bellerophon] carbonarius  147

12, a, b.  " [ditto for Bellerophon] kansasensis  148

13  Straparollus (Erioruphalus) subquadratus  149

14, a, b, c.  " [ditto for Straparollus] catilloides  151

15  Naticopsis altonensis  153

16  Macrocheilus paludinaeformis  154

17  Sphaerodoma ponderosa  155

18  " [ditto for Sphaerodoma] primogenia  156

19  Polyphomopsis [?peracuts?]  158

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PLATE XI. 1. Pleurotomaria carbonaria 137 2. " [ditto for Pleurotomaria] tabulata 138 3. " [ditto for Pleurotomaria] spaerulata 139 4. " [ditto for Pleurotomaria] perhumerosa 140 5, a, b. " [ditto for Pleurotomaria] grayvillensis 141 6, a, b. " [ditto for Pleurotomaria] marconiana 142 7, a, b. Murchisonia terebra [?] 8. Platystorna peoriense 144 9, a, b. Bellerophon craseus 145 10, a, b. " [ditto for Bellerophon] pericarinatus 146 11, a, b. " [ditto for Bellerophon] carbonarius 147 12, a, b. " [ditto for Bellerophon] kansasensis 148 13 Straparollus (Erioruphalus) subquadratus 149 14, a, b, c. " [ditto for Straparollus] catilloides 151 15 Naticopsis altonensis 153 16 Macrocheilus paludinaeformis 154 17 Sphaerodoma ponderosa 155 18 " [ditto for Sphaerodoma] primogenia 156 19 Polyphomopsis [?peracuts?] 158