Macroevolutionary Pattern And Developmental Process In Marginellid Gastropods From The Neogene Of The Caribbean Basin
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Evolutionary Patterns
| Author | : Alan H. Cheetham |
| Publisher | : University of Chicago Press |
| Total Pages | : 424 |
| Release | : 2001-08 |
| Genre | : Science |
| ISBN | : 9780226389301 |
With all the recent advances in molecular and evolutionary biology, one could almost wonder why we need the fossil record. Molecular sequence data can resolve taxonomic relationships, experiments with fruit flies demonstrate evolution and development in real time, and field studies of Galapagos finches have provided the strongest evidence for natural selection ever measured in the wild. What, then, can fossils teach us that living organisms cannot? Evolutionary Patterns demonstrates the rich variety of clues to evolution that can be gleaned from the fossil record. Chief among these are the major trends and anomalies in species development revealed only by "deep time," such as periodic mass extinctions and species that remain unchanged in form for millions of years. Contributors explore modes of development, the tempo of speciation and extinction, and macroevolutionary patterns and trends. The result is an important contribution to paleobiology and evolutionary biology, and a spirited defense of the fossil record as a crucial tool for understanding evolution and development. The contributors are Ann F. Budd, Efstathia Bura, Leo W. Buss, Mike Foote, Jörn Geister, Stephen Jay Gould, Eckart Hâkansson, Jean-Georges Harmelin, Lee-Ann C. Hayek, Jeremy B. C. Jackson, Kenneth G. Johnson, Nancy Knowlton, Scott Lidgard, Frank K. McKinney, Daniel W. McShea, Ross H. Nehm, Beth Okamura, John M. Pandolfi, Paul D. Taylor, and Erik Thomsen.
Beyond Heterochrony
| Author | : Miriam Zelditch |
| Publisher | : Wiley-Liss |
| Total Pages | : 400 |
| Release | : 2001-10-03 |
| Genre | : Medical |
| ISBN | : |
Heterochrony has been a dominant theme in the explosion of interest of evolution and development. This book explores beyond heterochrony for the links between evolutionary and developmental processes, as well as the origins of morphological diversity.
A Gradual Morphologic Transition During a Rapid Speciation Event in Marginellid Gastropods (Neogene
| Author | : Ross H. Nehm |
| Publisher | : |
| Total Pages | : |
| Release | : 1994 |
| Genre | : |
| ISBN | : |
We document a speciation event between two species of prunum (Marginellidae: Gastropoda) in pliocene strata of the northern Dominican Republic. The ancestral species, P. coniforme, is widely distributed in the mio-pliocene of the Dominican Republic and Jamaica, and has a range of at lcast 1 1 m.y. The descendant species, P. christineladdae, is endemic to the northern Dominican Republic. The ancestral species persists after its descendant arises. The transition between species is marked by stratigraphic and morphologic intermediates, and occurs during and interval estimated to be between 73.000 and 275.000 years (representing 0.6-2.5 percent of the duration of the ancestral species). although the transition takes more than a geologic instant, the overall pattern of morphologic change is best described by the model of punctuated equilibrium. The change between species apparently involved a habitat shift into deeper water, and occurred during acdelerated deepening. All of the neogene Dominican species of Prunum appear to have had depth-defined ranges.
Species and Speciation in the Fossil Record
| Author | : Warren D. Allmon |
| Publisher | : University of Chicago Press |
| Total Pages | : 434 |
| Release | : 2016-10-05 |
| Genre | : Nature |
| ISBN | : 022637744X |
The literature of paleobiology is brimming with qualifiers and cautions about using species in the fossil record, or equating such species with those recognized among living organisms. Species and Speciation in the Fossil Record digs through this literature and surveys the recent research on species in paleobiology. In these pages, experts in the field examine what they think species are - in their particular taxon of specialty or more generally in the fossil record. They also reflect on what the answers mean for thinking about species in macroevolution. The first step in this approach is an overview of the Modern Synthesis, and paleobiology’s development of quantitative ways of documenting and analyzing variation with fossil assemblages. Following that, this volume’s central chapters explore the challenges of recognizing and defining species from fossil specimens, and show how with careful interpretation and a clear species concept, fossil species may be sufficiently robust for meaningful paleobiological analyses. Tempo and mode of speciation over time are also explored, exhibiting how the concept of species, if more refined, can reveal enormous amounts about the interplay between species origins and extinction and local and global climate change.
Evolutionary Stasis and Change in the Dominican Republic Neogene
| Author | : Ross H. Nehm |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 324 |
| Release | : 2008-03-21 |
| Genre | : Science |
| ISBN | : 1402082150 |
Here, a diverse group of geologists and paleobiologists focus their attention on the richly fossiliferous Neogene stratigraphic sections of the Dominican Republic. They provide an updated geological framework and a series of novel studies of evolutionary stasis and change among different lineages and associated ecological communities. This collection of studies illustrates the immense potential of collaborative, multidisciplinary, and field-based paleobiological research.
