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. |
Contents
The Biography of an Idea | 15 |
Geology | 31 |
Central and South America | 37 |
Preservation | 48 |
Morphology of a Merom | 71 |
Morphological Reductionism | 109 |
Summary and Beyond | 143 |
Phosphatization | 149 |
Named Receptaculitid Taxa | 161 |
References | 167 |
Authors Index | 221 |
| 229 | |
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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 algae algal American aragonitic Archaeata archaeocyathids axiomorph axis axon Billings 1865a body brachia brachiopods brachium Bulletin calathids Calathium calcareous calcite central characters chlorophyte coral corniculum cribellum crystallites cyclocrinitids dasyclad Debrenne Devonian distal Eichwald endasters fauna feet fibrous Figure Fisher and Nitecki Fisherites orbis Fig fluorapatite foraminifer Formation fossils Geological Society Geological Survey Goldfuss Grabau Group Gümbel Hall head hexactinellid Hinde Illinois Ischadites lacunar layer Limestone Lower Ordovician meroms morphology Murchison Museum of Natural Mutvei Myagkova Natural History Nitecki nuclear area nuclear hemisphere nucleus numerous text-figs Öland organisms Paleontology Paleozoic parastichies partim phosphatized plates pores Porifera preserved problematic Problematica protozoa quadribrachial structures radial Rauff recep receptaculitids reticulatus Rietschel 1969 Roemer Salter Scale bar shaft shapes Silurian skeleton Society of America species specimens spicules sponge sponge spicules spongocoel Stratigraphy Survey of Canada Sushkin symmetry taculitids taxa taxon taxonomic text-figs thin Toomey Ulrich van Benthuysen whorls York Zhuravleva