The Stormy Path from Life to Death Assemblages: The Formation and Preservation of Mass Accumulations of Fossil Sand Dollars

  title={The Stormy Path from Life to Death Assemblages: The Formation and Preservation of Mass Accumulations of Fossil Sand Dollars},
  author={James H. Nebelsick and Andreas Kroh},
Abstract Clypeasteroids can be very common in Recent, shallow water environments in a variety of biogeographic settings and represent important members of benthic invertebrate communities. Mass deposits of fossil clypeasteroids are also common and characteristic of many Cenozoic shallow water deposits. Their distribution and formation, however, has received much less attention than molluscan counterparts, although fossil examples are found within all three of the clypeasteroid suborders. A… 
Multiple routes to mass accumulations of clypeasteroid echinoids: A comparative analysis of Miocene echinoid beds of Sardinia
Abstract Although clypeasteroid echinoids are very common in the shallow water sediments of the Miocene of Sardinia, they have received little attention as far as their origin is concerned. In this
The origin of echinoid shell beds in siliciclastic shelf environments: three examples from the Miocene of Sardinia, Italy
Three mass accumulations of sea urchins from the Miocene of Sardinia show a number of taphonomic features which set them apart from previously described echinoid assemblages from the Cenozoic in
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Abstract A rich Lower Miocene echinoid fauna has been investigated from Gebel Gharra, NW of Suez, Egypt. The ca 140 m long section consists of a siliciclastic lower part and a carbonate-dominated
Ecomorphological and taphonomic gradient of clypeasteroid-dominated echinoid assemblages along a mixed siliciclastic-carbonate shelf from the early Miocene of northern Sardinia, Italy
Clypeasteroid echinoids are widespread and abundant within Miocene sedimentary sequences of the Mediterranean area within both siliciclastic and carbonate deposits. Herein, three
Fossil sand dollars (Echinoidea: Clypeasteroida) from the Southern Brazilian coast
Quaternary sediments along the southernmost portion of the Brazilian coast are rich in fossil remains of various terrestrial and marine organisms. This paper presents a description of fossil
Quaternary sediments along the southernmost portion of the Brazilian coast are rich in fossil remains of various terrestrial and marine organisms. This paper presents a description of fossil
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The Lower Miocene deposits in Gabal Gharra, Cairo – Suez District, unconformably overlies the Oligocene and Eocene deposits. They consist predominantly of regressive and transgressive mixed
Palaeoecology and taphonomy of spatangoid-dominated echinoid assemblages: A case study from the Early-Middle Miocene of Sardinia, Italy
Abstract The Early-Middle Miocene marine sedimentary succession of the Borutta Formation cropping out at Porto Torres (northern Sardinia) represents one of the most diverse and well-preserved
Echinoid diversity, preservation potential and sequence stratigraphical cycles in the Glen Rose Formation (early Albian, Early Cretaceous), Texas, USA
The correlation between echinoid species diversity and second- and third-order sequence stratigraphical cycles is investigated in the Lower Cretaceous carbonate platform sequences of central Texas.


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Evolutionary changes in the ecology and diversity of organisms that produce and destroy calcareous skeletons suggest that bioclastic concentrations themselves might have changed in nature through the
Clam calamity; a recent supratidal storm-deposit as an analog for fossil shell beds
A winter storm struck the South Jersey shore near Atlantic City, New Jersey in 1992, excavating a population (108 individuals) of the burrowing infaunal surf-clam, Spisula solidissima, and depositing
Mass Mortality in the Gulf of Trieste: The Course of Community Destruction
This ecological catastrophy provides evidence that the affected community, considered to have achieved relative stability by developing a strategy effectively dampening the effect of physical oscillations, has a distinct tolerance limit to stress.
Mass aggregation of Middle Miocene spine-coated echinoids Echinocardium and their integrated eco-taphonomy
A unique "Fossillagerstatte" of spatangoid echinoids of the genus Echinocardium from the Middle Miocene (Badenian) sandy deposits of the Fore-Carpathian Depression, as exposed at Gleboviti
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Abstract Echinoid concentrations provide insight into the role of shell composition and taphonomic resilience in the formation of shell bed types. The two groups of echinoids, regular and irregular,
Upper Miocene Echinoids from the Yorktown Formation of Virginia and Their Environmental Significance
Porter M. Kier. Uppe r Miocene Echinoids from the Yorktown Formation of Virginia and The i r Environmental Significance. Smithsonian Contributions to Paleobiology, number 13, 41 pages, 7 figures, 10
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Abstract The taphonomy of a Recent and a fossil sand dollar are compared. The recent Echinodiscus auritus originates from a shallow-water carbonate environment in the Red Sea. The fossil Parascutella
Substrate-related changes in pectinid fossil assemblages
Quantitative analysis of pectinid (Bivalvia) assemblages in the Lower Pliocene deposits of the Almeria-Nijar and Poniente basins in southeastern Spain reveals changes in the taphonomical attributes,
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Abstract Fossil echinoderms are an important faunal component in Cenozoic rocks of Florida and the southeastern Coastal Plain of the USA, that provide useful information regarding diversity patterns
Pectinid coquinas and their palaeoenvironmental implications — examples from the early Miocene of northeastern Egypt
Abstract The Early Miocene (Burdigalian) section at Gebel Gharra (SW Suez, Egypt) represents a mixed carbonate/siliciclastic regime and is composed of a series of fining- and deepening-upward