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Radial Foraminifera: Morphometrics and Evolution

By: CW Drooger

242 pages, Figs

Edita - KNAW

Paperback | Dec 1993 | #85402 | ISBN: 0444857680
Availability: Usually dispatched within 1-2 weeks Details
NHBS Price: £63.00 $82/€71 approx

About this book

In the past 60 years morphometric research on larger, radial foraminifera has generated a tremendous but scattered amount of information which, in its details, is unparalleled in paleontology. This book describes the main roads of evolution, presenting a comprehensive account of evolution patterns and problems in nine unrelated stocks of radial foraminifera. In addition, it gives explanations for the speciation and cladogenesis in connection with the role of environment. The book will be of value to all (micro)paleontologists, evolutionary biologists, and (paleo)ecologists.


Part 1 Skeletal structures and morphometrics: purpose and scope of the book; skeletal structures; radial growth patterns; the orbitoidal structures; lineage and species concepts; basic rules and conditions in morphometric procedures; preview of parameters. Part 2 The case histories: cycloclypeus; general structure; parameters; the Indonesian succession; bimodality problems; the Mediterranean succession; relationships; external versus internal features; heterocyclina; summary; planorbulinella; planorbulinidae; the caneae lineage; two recent species; pulsating evolution; data that do not fit; planolinderina; introduction; aquitaine basin; Kutch; Southwest Pacific; Miogypsinidae; introduction; descent; Nepionic acceleration; lateral wall development; embryonic acceleration; size increase of the embryon; centripetal trends; the equatorial chambers; genetic separation of side lines; the basis of miogypsinid classification; the main lineage; the American province; the western Tethys; the Indo-Pacific province; environment and geographic distribution; stratigraphic control and modes of change; speciation and diversification; lepidocyclinidae; introduction; parameters; descent; the American province; the European development; the western Pacific province; review; orbitoididae; structure and morphometric parameters; the precursors; classification; the punctuation succession; side lines; pseudorbitoididae; the pseudorbitoid layer; pseudorbitoides; vaughanina; lepidorbitoididae; introduction; evolution and classification; the last two species; orbitocyclina; the paleocene darkness episode; orthophragminae; introduction; the microspheric generations; ancestry; additional ramification; morphometric data. Part 3 Synthesis between facts and fiction: morphometric patterns and evolutionary trends; the adaptive value of general structures and overall trends; overall larger size; offspring balance; symbionts; wall structures; the adaptive value of the trends; reproduction modes and processes; the meaning of the megalospheric embryon; embryonic trends; the nepionic acceleration trends; interrelation of trends; evolutionary happenings and global environmental events.

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