Having already described him in most of his present habitatory and anatomical peculiarities, it now remains to magnify him in an archaeological, fossiliferous, and antediluvian point of view.
But not alone has this Leviathan left his pre-adamite traces in the stereotype plates of nature, and in limestone and marl bequeathed his ancient bust; but upon Egyptian tablets, whose antiquity seems to claim for them an almost fossiliferous character, we find the unmistakable print of his fin.
It will be much more convenient to discuss this question in the chapter on the Imperfection of the geological record; and I will here only state that I believe the answer mainly lies in the record being incomparably less perfect than is generally supposed; the imperfection of the record being chiefly due to organic beings not inhabiting profound depths of the sea, and to their remains being embedded and preserved to a future age only in masses of sediment sufficiently thick and extensive to withstand an enormous amount of future degradation; and such fossiliferous masses can be accumulated only where much sediment is deposited on the shallow bed of the sea, whilst it slowly subsides.
In this great class we should probably have to descend far beneath the lowest known fossiliferous stratum to discover the earlier stages, by which the eye has been perfected.
Vast, and scarcely comprehensible as such changes must ever appear, yet they have all occurred within a period, recent when compared with the history of the Cordillera; and the Cordillera itself is absolutely modern as compared with many of the fossiliferous
strata of Europe and America.
With the exception of several probably heterochronous, stratigraphically and geographically restricted horizons, the dark shales of the Sarka Formation are usually quite sparsely fossiliferous
9:00 SHELL BLUFF--A FOSSILIFEROUS
RIDGE, THE SITE OF
These rocks are of significant commercial importance and comprise a series of porous, clean, pellet and fossiliferous
limestones with inter-bedded tight (often stylolitic lime) mudstones and packstones.
SYSTEMATIC PALEONTOLOGY--We collected specimens during trips in 2002-2008 by crawling the surface, searching for microvertebrates, and by digging and processing fossiliferous
matrix from several informally named sub-localities of the main locality, Terapa.
thick-bedded to massive, feature forming, hard and fossiliferous
limestones) called the Guri Member and green marl with intercalations of thin to medium bedded limestones.
The Coos Conglomerate is composed of cobbles and boulders of fossiliferous
lower Empire Formation sandstone, rounded beach pebbles and cobbles of chert, basalt, quartzite, and reworked Empire Formation fossils mixed with contemporaneous shallow water fauna (Armentrout, 1973, p.
Surface collecting and screenwashing of unconsolidated fossiliferous
sediment (Zone A: Farlow, Richards, et al.