单词 CROSSOPTERYGIAN的词源
From New Latin Crossopterygiī, from Greek krossoi fringe, tassels + pterugion a little wing, from pterux wing.
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crossopterygian的用法。与
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1
Life's Splendid Drama: Evolutionary Biology and the ...
105 After listing the resemblances, he insisted, "The conclusion to be drawn from
the above facts is that the ancestry of the Urodela [salamanders) must be sought
among the Crossopterygian forms now represented only by Polypterus and ...
2
Fins into Limbs: Evolution, Development, and Transformation
Holmgren (1933) argued that the stegocephalians had evolved from
crossopterygian fish and had in turn given rise to the anurans and the reptiles.
The urodeles had evolved separately, either from another crossopterygian
source or, more ...
3
Hyman's Comparative Vertebrate Anatomy
It is instructive to compare tl components of the skull of a primitive labyrinthodont
amphibian (fig 8.6B, D, and 8.7), as representative of a generalized tetrapod, with
tl skull components of a crossopterygian fish (figs. 8.5C and 8.6/4, C and note ...
4
Intelligent Life in the Universe: From Common Origins to the ...
While the backbone of the crossopterygian in Fig. 6.15 was well adapted for the
wavy motion of a fish, the spine's support function in a more advanced amphibian
such as the Mastodonsaurus was accomplished by modifying the individual ...
5
Abusing Science: The Case Against Creationism
Gish is quite correct to recognize that there is a difference in the limbs of the first
amphibians and the fins of the most advanced crossopterygian fishes. Despite
the structural similiarity between them, the amphibian limbs (and limb girdles) are
...
6
Interrelationships of Fishes
Ncues Iahrb. Mineral., Geol. PaIaeont0I., Monatsh. 1975, 407414. Young, G. C.,
Long, ]. A., and Ritchie, A. (1992). Crossopterygian fishes from the Devonian of
Antarctica: Systematics, relationships and biogeographic significance. Rec. Austr.
Melanie L.J. Stiassny, Lynne R. Parenti, G. David Johnson, 1996
Only in the past decade or so have palaeontologists described in detail
crossopterygian material from Australia and Antarctica. In Devonian times, these
continents were joined to form the "East Gondwana" region, the antipodes of the
...
Figure 13.10 Rhipidistian Crossopterygian The crossopterygians are the group
from which the amphibians are thought to have evolved. Eusthenopteron, a
member of the rhipidistian crossopterygians, had an elongated body and paired
fins ...
Reed Wicander, James Monroe, 2012
From the Crossopterygian fringe finned type was derived the ray- finned type by
the reduction of the internal radials, and the lung-fish (Dipnoan) in another
direction by the development of an elongated axis to form the biserial or pinnate
type of ...
Alternatives: even crossopterygian species may survive Thanks to the enormous
benefits of object-oriented programming, which is discussed in the next section, it
is not hard to understand why an object-oriented language is in greater ...
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Attack of the Super-Intelligent Purple Space Squid Creators
And why did the purple space squids arrange 390 million years ago for the first amphibians to resemble Crossopterygian fish that were also ... «Reason Online, 七月 08»
