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Books Bücher 1 - 10 von 41 in The upper valve is almost invariably wanting, though occasionally found in a perfect...
" The upper valve is almost invariably wanting, though occasionally found in a perfect state of preservation in the white chalk at some distance. In this case we see clearly that the sea-urchin first lived from youth to age, then died and lost its spines,... "
A Manual of Elementary Geology; Or, The Ancient Changes of the Earth and Its ... - Seite 23
von Sir Charles Lyell - 1851 - 512 Seiten
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Elements of Geology

Charles Lyell - 1838 - 543 Seiten
...Spatangus had died, and the spines were detached. mollusca. The upper valve (b Fig. 11.) is almost Fig. 11. invariably wanting, though occasionally found in a...some distance. In this case, we see clearly that the seaurchinfirst lived from y°uth to c±!ra?Lchedeofthe age, then died and lost its spines, 4. Upper...
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Elements of geology

sir Charles Lyell (bart.) - 1838
...Spatangus had died, and the spines were detached. mollusca. The upper valve (b Fig. 11.) is almost Fig. 11. invariably wanting, though occasionally found in a...chalk at some distance. In this case, we see clearly tlrat the seaage, then died and lost its spines, i. Upper valve of the , . . ,„ Crania detached....
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Elements of Geology

Sir Charles Lyell - 1839 - 316 Seiten
...it the lower valve of a crania, an extinct genus of bivalve mollusca. The upper valve (6 Fig. 11.) is almost invariably wanting, though occasionally...its spines which were carried away. Then the young a. EMnus from the Crania adhered to the bared shell, and perishva^ve'of'the^nHtia ed in its turn ,...
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Elements of Geology, Band 1

Sir Charles Lyell - 1841
...which has fixed to it the lower valve of a Crania, a genus of bivalve mollusca. The upper valve (6, Fig. 13.) is almost invariably wanting, though occasionally...this case, we see clearly that the sea-urchin first .£c»inM from the chalh, ]ived from youth to age, then died with lower valve of the ' >d lost its...
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Elements of geology

sir Charles Lyell (bart.) - 1841
...of a Crania, a genus of bivalve mollusca. The upper valve (b, Fig. 13.) is almost inRg. is. variably wanting, though occasionally found in a perfect state...this case, we see clearly that the sea-urchin first k, lived from youth to age, then died with lower vmlve of the' Crania attached. and lost its spines,...
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Elements of Geology

Sir Charles Lyell - 1845 - 316 Seiten
...upper valve (b Fig. 11.) is almost invariably wanting, though occasionally found in a perfect slate of preservation in white chalk at some distance. In...its spines which were carried away. Then the young a. EcMntut from the Crania adhered to the bared shell, and perishva?ve'oftthe'Cra7ii'i ed 'n its turn...
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A Manual of Elementary Geology: Or, The Ancient Changes of the Earth and Its ...

Sir Charles Lyell - 1854 - 512 Seiten
...which has fixed to it the lower valve of a Crania, a genus of bivalve mollusca. The upper valve (6, fig. 13) is almost invariably wanting, though occasionally...youth to age, then died and lost its spines, which wciv carried away. Then the young Crania adhered to the bared shell, grew and perished in its turn;...
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A Manual of Elementary Geology: Or, The Ancient Changes of the Earth and Its ...

Sir Charles Lyell - 1855 - 655 Seiten
...mollusca. The upper valve (*> fig- 13.) is almost invariably wanting, though occasionally foumifln a perfect state of preservation in white chalk at...to the bared shell, grew and perished in its turn ; "the a^ter which the upper valve was separated from or the the lower before tbe Echinus became enveloped...
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Elements of Geology: Or, The Ancient Changes of the Earth and Its ...

Sir Charles Lyell - 1866 - 803 Seiten
...13), which has fixed to it the lower valve of a Crania, a genus of bivalve mollusca. The upper valve (b, fig. 13) is almost invariably wanting, though...young Crania adhered to the bared shell, grew and _j" Crania perished in its turn; after which the upper valve was attached. separated from the lower...
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Elements of Geology: Or, The Ancient Changes of the Earth and Its ...

Sir Charles Lyell - 1866 - 803 Seiten
...which has fixed to it the lower valve of a Crania, a genus of bivalve mollusca. The upper valve (6, fig. 13) is almost invariably wanting, though occasionally...in a perfect state of preservation in white chalk ,. r T . • at some distance. In this case, we see clearly that the sea-urchin first lived from youth...
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