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£72.99

Foraminiferal Descendence and its Early Cambrian-Initiated Diversification

M. Dan Georgescu

£72.99

This book presents a new framework of foraminiferal descendence based on ancestor–descendant relationships. This methodology reveals key features evolved on multiple occasions, proving that classical classification should be abandoned for a new, descendence-based grouping.

The evolution of foraminifers began in the Early Cambrian times, circa 520 million years ago, and our data indicates the earliest representatives had an agglutinated…
£72.99
£72.99
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The evolution of foraminifers began in the Early Cambrian times, circa 520 million years ago, and our data indicates the earliest representatives had an agglutinated test wall, consisting of small particles bounded by an organic or inorganic cement. The group diversified shortly after their evolutionary occurrence and this process continues even today. In this book, a highly accurate framework of the foraminiferal descendence is achieved by recognizing the
ancestor–descendant relationships following a mixture of features, morphological resemblances given by the common ancestry and differences as the result of the divergent evolutionary process. The new methodology indicates that the group evolved calcareous walls, multichambered tests and partitioned chamber interiors on multiple occasions. The iterative development of these features, which are paramount in traditional classifications, indicates that the classical classification methodology should be abandoned, marking by this a shift towards declassification and descendence-based grouping of the foraminiferal units.

Dr Dan Georgescu received a PhD from the University of Bucharest, Romania, in 1994 with a thesis focused on the Mesozoic planktic foraminifera of the Western Black Sea offshore. Following an early career in the oil industry as a biostratigrapher and consultant, he moved to academia and taught a variety of courses related to paleontology, micropaleontology, stratigraphy, geology and petroleum geology at the Memorial University of Newfoundland and Labrador, the University of Saskatchewan, and the University of Calgary, Canada. He has authored over 60 journal articles and book chapters, four textbooks and four books, and served as editor for two volumes.

Paperback

  • ISBN: 1-0364-7065-2
  • ISBN13: 978-1-0364-7065-4
  • Date of Publication: 2026-04-02

Subject Codes:

  • BIC: PDC, PSAJ, RBX
  • BISAC: SCI054000, SCI027000, SCI091000, SCI087000, SCI070020, SCI031000
  • THEMA: PDC, PSAJ, RBX
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