Palaeoecology and Palaeoenvironments of Late Cenozoic Mammals: Tributes to the Career of C. S. (Rufus) Churcher.Kathlyn M. Stewart , Kevin L. Seymour

1997 ◽  
Vol 72 (1) ◽  
pp. 65-66
Author(s):  
S. David Webb
Keyword(s):  
Late Cenozoic ◽  
Cenozoic Mammals

A test for evolutionary equilibria: Phanerozoic brachiopods and Cenozoic mammals

Paleobiology ◽  
1977 ◽  
Vol 3 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Graham A. Mark ◽  
Karl W. Flessa
Keyword(s):  
Fossil Record ◽  
New World ◽  
Late Cenozoic ◽  
Equilibrium Models ◽  
Geographic Scale ◽  
Taxonomic Level ◽  
Temporal Intervals ◽  
Cenozoic Mammals

The fossil record of Phanerozoic brachiopod genera and Late Cenozoic New World mammal genera is examined for evidence of evolutionary equilibria. One necessary (but insufficient) condition is met: within temporal intervals, numbers of originations correlate with numbers of extinctions. Eliminating temporally short-ranging brachiopods, however, reduces the correlation so that it explains only 16% of the variation. More decisive tests of the equilibrium hypothesis appear impossible with available data. Difficulties of temporal and geographic scale, taxonomic level, and ecological consistency must be resolved before equilibrium models can be applied in paleontology for other than inspiration.

Late Cenozoic mammals from central Mexico

1984 ◽  
Vol 4 (2) ◽  
pp. 216-236 ◽  
Author(s):  
Wade E. Miller ◽  
Oscar Carranza-Castañeda
Keyword(s):  
Central Mexico ◽  
Late Cenozoic ◽  
Cenozoic Mammals

Diets and environments of late Cenozoic mammals in the Qaidam Basin, Tibetan Plateau: Evidence from stable isotopes

2012 ◽  
Vol 333-334 ◽  
pp. 70-82 ◽  
Author(s):  
Chunfu Zhang ◽  
Yang Wang ◽  
Qiang Li ◽  
Xiaoming Wang ◽  
Tao Deng ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Tibetan Plateau ◽  
Qaidam Basin ◽  
Late Cenozoic ◽  
Cenozoic Mammals

A note on the estimation of species duration distributions

Paleobiology ◽  
1979 ◽  
Vol 5 (1) ◽  
pp. 60-62 ◽  
Author(s):  
John H. Gillespie ◽  
Robert E. Ricklefs
Keyword(s):  
Age Distribution ◽  
Late Cenozoic ◽  
Mathematical Relationship ◽  
Speciation Process ◽  
Stable Age Distribution ◽  
Cenozoic Mammals

The mathematical relationship between species survivorship and duration curves is derived using standard demographic arguments. The result, when applied to the late Cenozoic mammals, suggests that there was an inhomogeneity in the mammalian radiation just before the Wurm, or that the mammalian speciation process has not yet attained the stable-age distribution.

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