Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective geology, obsolete Of or pertaining to the Lower Greensand.
Etymologies
Sorry, no etymologies found.
Examples
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These Cretaceous beds were at first divided only into three sets, called the Neocomian, or lower deposits, the Green-Sands, or middle deposits, and the Chalk, or upper deposits.
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Pass to the Urgonian beds, resting directly upon the Neocomian, and there is not one to be found, and an entirely new species comes in.
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The Neocomian, the lower division, was afterwards subdivided into three sets of beds, called the Lower, Middle, and Upper Neocomian by some geologists, the Valengian, Neocomian, and
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It is evident that by some disturbance of the surface the eastern end of the range was raised slightly, lifting the lower or Valengian deposits out of the water, so that they remain uncovered, and the next set of deposits, the Neocomian, is accumulated along their base, while these in their turn are slightly raised, and the Urgonian beds are accumulated against them a little lower down.
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And wept -- the Neocomian Age was passing all too soon!
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During the year 1836, though pushing forward constantly the publication of the “Poissons Fossiles,” his “Prodromus of the Class of Echinodermata” appeared in the Memoirs of the Natural History Society of Neuchatel, as well as his paper on the fossil Echini belonging to the Neocomian group of the Neuchatel Jura, accompanied by figures.
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Neocomian beds, or of the Hippurite limestone, and include no important masses of other formations.
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Yet these oscillations of level were accomplished without any perceptible derangement in the strata, which remained all the while horizontal, so that the Lower Cretaceous or Neocomian beds were deposited conformably on the Oolitic.
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In the second set of Cretaceous beds, the Neocomian, there is found a little Terebratula (a small Bivalve
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Upper Cretaceous period, the abruptness of the change will probably disappear when we are better acquainted with the fossil vegetation of the uppermost tracts of the Neocomian and that of the lowest strata of the Gault, or true Cretaceous series [59]. "
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