. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. 22 PLATE XL [Assembly Fossils of the Upper Helderberg group. 1. Eensseljeria (Meganteris) elongatus (wrongly called M. ovoides on p. 61). 2. Same, end view. 3. Strophomena undulata. 4. Orthis lenticularis, lower valve and front outline. 5. Atrypa reticularis. 6. Strophomena lineata, enlarged. 7. Dalmania selenurus : separate fragments, head and tail. 8. Cyrtoceras undulatus. 9. ICHTHYODORULiTE, a defens
. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. 22 PLATE XL [Assembly Fossils of the Upper Helderberg group. 1. Eensseljeria (Meganteris) elongatus (wrongly called M. ovoides on p. 61). 2. Same, end view. 3. Strophomena undulata. 4. Orthis lenticularis, lower valve and front outline. 5. Atrypa reticularis. 6. Strophomena lineata, enlarged. 7. Dalmania selenurus : separate fragments, head and tail. 8. Cyrtoceras undulatus. 9. ICHTHYODORULiTE, a defensive fin-bone of a devonian fish. No. 136.] PLATE XI. 23. 24 PLATE XI A. [Assembly Fossils of the limestone layers in the Marcellus shale. 1. GoNiATiTES DiscoiDEUS, showing the septa. 2. The same, showing the exterior form. 3. GrONIATITES EXPANSUS. 4. Same, back view ( p. 63). 5. Nautilus ornatus. 6. Same, hack view ( p. 64). No. 136.] PLATE XI A. 25
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectscience, bookyear1853
