. Elements of geology. Geology. Producta calva, Sow. Spirifer ujtdulatus. Sow. (Lept(Bna,J)a]m^^.) Magnesian Limestone. Magnesian Limestone. to the Magnesian Limestone, Coal, and Primary fossiliferous strata, but have never been met with in any rock above the Magnesian Limestone. There are certain fish also found both in England and Germany, in the Lower New Red System, which occur in the carboniferous strata, but in no formation higher in the series than the Magnesian limestone, not even in the Muschelkalk. The genus Palmoniscus, Agas. {Pal<BOthrissum, Biain.) is Fig. Restored outlin
. Elements of geology. Geology. Producta calva, Sow. Spirifer ujtdulatus. Sow. (Lept(Bna,J)a]m^^.) Magnesian Limestone. Magnesian Limestone. to the Magnesian Limestone, Coal, and Primary fossiliferous strata, but have never been met with in any rock above the Magnesian Limestone. There are certain fish also found both in England and Germany, in the Lower New Red System, which occur in the carboniferous strata, but in no formation higher in the series than the Magnesian limestone, not even in the Muschelkalk. The genus Palmoniscus, Agas. {Pal<BOthrissum, Biain.) is Fig. Restored outline of a fish of the genus Palceoniscus. Agass.* Magnesiaa Limestone. the most striking example, as three species have been found in England in marl slate, immediately below the Magnesian Lime- stone ; and three other different, but nearly allied species, in the slate of the Zechstein of Germany.^ It was first pointed out by M. Agassiz, that all the bony fish of the Magnesian Limestone, and of all the more ancient form- ations, have the vertebral column continued into the upper lobe * Poissons Fossiles, vol. i. tab. A. fig. 4. t Sedgwick, Geol. Trans., Second Series, vol. iii. p. 117. V. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lyell, Charles, Sir, 1797-1875; Gibbes, Lewis Reeve, 1810-1894, former owner. DSI; Merrill, George P. (George Perkins), 1854-1929, former owner. DSI. Philadelphia : James Kay, Jun. and Brother ; Pittsburgh : C. H. Kay & Co.
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Keywords: ., bookauthorlyellcharlessir17, bookcentury1800, booksubjectgeology
