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Bibliotheca Diatomologica, Volume 58: Freshwater Diatom Floristics of the Late Eocene Florissant Formation, Clare's Quarry Site, Central Colorado, USA

Series: Bibliotheca Diatomologica Volume: 58

By: Mary Ellen Benson(Author), John Patrick Kociolek(Author)

136 pages, 34 plates with b/w photos; 4 b/w illustrations

Schweizerbart Science Publishers

Paperback | Jan 2012 | #201804 | ISBN-13: 9783443570491
Availability: Usually dispatched within 1-2 weeks Details
NHBS Price: £79.50 $104/€90 approx

About this book

Language: English

Freshwater diatom floras from Pre-Neogene times are rare, known from only a few localities, and tend to have limited taxonomic diversity. The late Eocene lacustrine beds of the Florissant Formation in Colorado provide an exceptionally well-preserved record, having yielded the most genus-rich of the early freshwater diatom floras. With its 34 million-year age, the flora represents the geologically earliest documented occurrence of many modern freshwater genera and includes taxa with strong affinities to extant species.

This monograph illustrates and describes the Florissant diatom flora from the Clare’s Quarry site that includes species and morphotypes of 21 genera. Among them are 5 newly-named species: Aulacoseira clarensis, Platessa florissantia, Navicula eomenisculus, Adlafia tellerensis, and Frustulia coloradensis; and one new variety: Fragilaria vaucheriae var. lohmanii.

34 plates, an exhaustive reference list and indices of taxa round up this volume and make it a valuable source of information for biologists and palaeontologists working on fossil diatom floristics.


Summary/Abstract 4

Introduction 5
Background 5
Rationale for Study 5
Location 6

Materials and Methods 9
Collection Methods 9
Preservation and Taphonomic Considerations 9
Sample Preparation 10
Data Analysis 10
Specimen Repository 11

Results 11
Taxonomy 11
Taphonomy 11

Systematic Descriptions 13

Discussion 59

Acknowledgements 60

References 61
Plates 68

Indices to Taxa 133

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