Hard Parts

Some articles on hard parts, parts:

How Microbial Mats Help Paleontologists
... Most fossils preserve only the hard parts of organisms, e.g ... remains of soft-bodied organisms and also of the soft parts of organisms for which only hard parts such as shells are usually found) are extremely valuable because they provide ...
Permian–Triassic Extinction Event - Extinction Patterns - Possible Explanations of These Patterns
... marine organisms were those that produced calcareous hard parts (i.e ... Close relatives without calcareous hard parts suffered only minor losses, for example sea anemones, from which modern corals evolved ... respiratory systems, and non-calcareous hard parts had negligible losses—except for conodonts, in which 33% of genera died out ...

Famous quotes containing the words parts and/or hard:

    Though of erect nature, man is far above the plants. For man’s superior part, his head, is turned toward the superior part of the world, and his inferior part is turned toward the inferior world; and therefore he is perfectly disposed as to the general situation of his body. Plants have the superior part turned towards the lower world, since their roots correspond to the mouth, and their inferior parts towards the upper world.
    Thomas Aquinas (c. 1225–1274)

    The A B C of being,
    The ruddy temper, the hammer
    Of red and blue, the hard sound
    Steel against intimation the sharp flash,
    The vital, arrogant, fatal, dominant X.
    Wallace Stevens (1879–1955)