Upper Cambrian Rehbachiella and the Phylogeny of Brachiopoda and Crustacea
Description
A paleontology publication of the Scandinavian University Press
The detailed written study, Upper Cambrian Rehbachiella and the Phylogeny of Brachiopoda and Crustacea, is part of an international series on stratigraphy and paleontology. Introduction 3
Stratigraphy and taphonomy 3
Palaeoecology and environmental conditions 3
Size and developmental stages 5
Systematic status of orsten arthropods 6
Material and methods 6
Material 6
Methods 7
Processing and measurements 7
Two larval series 8
Terminology 8
Systematic palaeontology 10
Rehbachiella kinnekullensis Müller, 1983 10
Postembryonic development 13
General remarks 13
Development of series A 13
Naupliar phase 13
Post-naupliar phase 20
Development of series B 30
Naupliar phase 30
Post-naupliar phaev31
Unassigned specimens and further instars 39
Life history 41
Ontogenetic stages 41
Two larval series 41
Growth 42
Morphogenesis 44
Intraspecific variation 50
Functional morphology and life habits 50
Early Larvae 50
Remarks 50
Locomotion and feeding of the nauplii 51
Advanced stages 54
Functional ontogenetic changes 54
Function of the advanced apparatus 56
Mode of life and habitat 61
Discussion 61
Affinities of Rehbachiella 61
Position within Crustacea s. str. (= crown-group Crustacea 61
Exclusion of closer relationships with non-branchiopods 64
General features and systematic status of Branchiopoda 67
Relationships within Branchiopoda and possible taxonomic position of Rehbachiella 70
Characters of the two branchiopod lineages 73
Anostraca 73
Phyllopoda 77
Comparative ontogeny 80
Remarks 80
Development of Rehbachiella as a comparative reference series 82
Comparisons 83
Results 83
Conclusions 90
Comparisons of locomotory and feeding apparatuses 95
General remarks 95
The bipartite locomotory and feeding apparatus 99
Comparisons 100
The branchiopod model of the limb apparatus of Rehbachiella 105
Significance of morphological details 107
Neck organ 108
Cephalic shields and carapaces 110
Structures in the head region 114
Appendages 115
Ventrocaudal processes 120
Segmental organs 120
Tagmosis 120
Concluding remarks 121
Acknowledgements 124
References 125
Addendum 133
Plates 134
List of abbreviations 202
List of Figures
Dieter Walossek is the author of Upper Cambrian Rehbachiella and the Phylogeny of Brachiopoda and Crustacea, published by Wiley.
PUBLISHER:
Wiley
ISBN-13:
9788200374879
BINDING:
Paperback
BISAC:
Science
BOOK DIMENSIONS:
Dimensions: 217.10(W) x Dimensions: 279.40(H) x Dimensions: 10.90(D)
AUDIENCE TYPE:
General/Adult
LANGUAGE:
English