Receptaculitids: A Phylogenetic Debate on a Problematic Fossil TaxonReceptaculitids are extinct high-level fossils that provide a window into the history of life. After the discovery and analysis of a deposit of phosphatized receptaculitids on the Baltic Sea island of Öland, the authors conclude that receptaculitids possess an attribute not found in any other group of organisms, living or fossil. |
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... morphology of meroms , particularly in the thickness and internal complexities of shafts and feet , justify placement of Receptaculites and Tettragonis into two separate families : Receptaculitidae Eichwald 1855 for Recep- aculites ...
... morphology of meroms , particularly in the thickness and internal complexities of shafts and feet , justify placement of Receptaculites and Tettragonis into two separate families : Receptaculitidae Eichwald 1855 for Recep- aculites ...
Page xi
... Morphological Characteristics of Fisherites orbis General Characteristics 48 53 53 Size ... Cellularity .. 53 54 Complexity Symmetry 54 54 Body Shape 54 Orientation ... Preservation and Calcification External Characteristics xi I.
... Morphological Characteristics of Fisherites orbis General Characteristics 48 53 53 Size ... Cellularity .. 53 54 Complexity Symmetry 54 54 Body Shape 54 Orientation ... Preservation and Calcification External Characteristics xi I.
Page xii
... Morphology of a Merom Membrane 54 55 55 55 57 57 58 58 62 71 75 Head .... Plate ... Quadribrachial Structures Endasters Shaft ..... Axon 76 79 85 93 96 100 Foot ... Chapter VI . Quaestio disputata : Morphological Reductionism 101 109 ...
... Morphology of a Merom Membrane 54 55 55 55 57 57 58 58 62 71 75 Head .... Plate ... Quadribrachial Structures Endasters Shaft ..... Axon 76 79 85 93 96 100 Foot ... Chapter VI . Quaestio disputata : Morphological Reductionism 101 109 ...
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Contents
II | xv |
III | 1 |
IV | 9 |
V | 10 |
VI | 16 |
VII | 21 |
VIII | 22 |
IX | 25 |
XXXVII | 95 |
XXXVIII | 103 |
XL | 104 |
XLI | 105 |
XLII | 106 |
XLIII | 111 |
XLV | 113 |
XLVI | 117 |
Other editions - View all
Receptaculitids: A Phylogenetic Debate on a Problematic Fossil Taxon Matthew H. Nitecki,Harry Mutvei,Doris V. Nitecki No preview available - 2012 |
Common terms and phrases
acicular adaxial algae algal American aragonitic Archaeata archaeocyathids axiomorph axis axon Billings 1865a brachia brachiopods brachium Bulletin Byrnes calathids Calathium calcareous calcite central characters chlorophyte coral corniculum cribellum crystallites cyclocrinitids dasyclad Debrenne Devonian distal Dzik Eichwald endasters Estonia feet fibrous Fisher and Nitecki Fisherites orbis Fig fluorapatite foraminifer fossils Geological Society Geological Survey Goldfuss Grabau growth Gümbel Hall head hexactinellid Hinde homologous Invertebrate Ischadites lacunar layer Limestone Lower Ordovician meroms morphology Murchison Museum of Natural Mutvei Myagkova Natural History nature of receptaculitids neptuni nuclear area nuclear hemisphere nucleus Öland Ordovician organisms original Paleontology Paleozoic parastichies partim phosphatized plates pores Porifera preserved problematic Problematica protozoa quadribrachial structures Rauff recep receptaculitid taxa receptaculitids reticulatus Rietschel 1969 Roemer Salter Scale bar shaft Silurian skeleton species specimens spicules sponge sponge spicules spongocoel Stratigraphy surface Survey of Canada Sushkin taculitids taxa taxon taxonomic Tettragonis text-figs thin Toomey Ulrich whorls Zhuravleva
Popular passages
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