Borings in Cloudina Shells: Complex Predator-Prey Dynamics in the Terminal Neoproterozoic

  title={Borings in Cloudina Shells: Complex Predator-Prey Dynamics in the Terminal Neoproterozoic},
  author={Hong Hua and Brian R. Pratt and Lu-yi Zhang},
Abstract Predation as an important driver of evolutionary change long has been assumed, despite difficulties to substantiate it with specific examples of predatory interaction, especially for the early Paleozoic diversification of animal life. This study corroborates the existence of shell-drilling predation in the uppermost Neoproterozoic of China. Nearly one-fifth of almost one hundred tubular shells of one of the earliest mineralized animals, Cloudina, are perforated by undoubted predatory… 

Ediacaran scavenging as a prelude to predation.

Evidence of the oldest scavenging of shallowly buried bodies of iconic soft-bodied members of the Ediacara Biota by cryptic seafloor mat-burrowing animals that produced the furrow and levee trace fossil, Helminthoidichnites isp.

Testing the Predation-Diversification Hypothesis for the Cambrian—Ordovician Radiation

Overall, origination rates decreased whereas the median predator ratio first increased up to a maximum at the middle—late Cambrian and then decreased more or less gradually during the Ordovician, suggesting thatPredatory animals might have contributed to the start of the Cambrian—Ordovician radiation by promoting defensive exoskeletons and infaunal lifestyles, but the results suggest they did not facilitate diversification in any other way.

Reappraising the early evidence of durophagy and drilling predation in the fossil record: implications for escalation and the Cambrian Explosion

  • R. BicknellJ. Paterson
  • Environmental Science, Geography
    Biological reviews of the Cambridge Philosophical Society
  • 2018
Cambrian durophagous and shell‐drilling predation is considered in the context of escalation – an evolutionary process that, amongst other scenarios, involves predators (and other ‘enemies’) as the predominant agents of natural selection.

Paleoecology of naticid–molluscan prey interaction during the Late Jurassic (Oxfordian) in Kutch, India: evolutionary implications

It is suggested that both turritellines and naticid evolved during the Jurassic, and the prey–predator interaction between them was established shortly thereafter, and among bivalves, corbulids also became important prey of naticids in the same spatiotemporal framework.

A new cloudinid fossil assemblage from the terminal Ediacaran of Nevada, USA

Owing to their temporal position during the decline of the classic Ediacara biota and the appearance of the more recognizable metazoans of the Cambrian Period, the terminal Ediacaran (∼551–539 Ma)

Ecological interactions in Cloudina from the Ediacaran of Brazil: implications for the rise of animal biomineralization

The close association of Cloudina tubes with microbial mat textures as well as organic-rich material, syndepositional calcite and goethite cement between their flanges are reported, thus reinforcing the awareness of metazoan/microorganism interactions at the end of the Ediacaran.

Record of Naticid Predation on Scaphopods (Mollusca) from the Latest Maastrichtian of Rajahmundry, India

Naticid drilling predation from a “Turritelline-dominated assemblage” stratigraphically just below the K-Pg boundary sections in Rajahmundry, India, was reported, extending the palaeobiogeography of naticid predation on scaphopods into the Southern Hemisphere.



Prey Selection by naticid gastropods: experimental tests and application to the fossil record

Application of the model to several Miocene and Pliocene assemblages studied by Thomas (1976) corroborates the feasibility and utility of this approach in examining the evolutionary record of naticid predation, which extends from the Late Mesozoic.

New example of Devonian predatory boreholes and the influence of brachiopod spines on predator success

Namacalathus-Cloudina assemblage in Neoproterozoic Miette Group (Byng Formation), British Columbia: Canada's oldest shelly fossils

The uppermost part of the Miette Group (Windermere Supergroup) in eastern British Columbia has yielded shelly macrofossils in cliff-forming biostromal carbonates (Byng Formation). The biostromes are

Cambrian predators: possible evidence from boreholes

Boreholes in Cambrian shells are rarely reported but are a potentially significant source of information on levels of predation in early metazoan communities. This paper documents boreholes in a wide

Eumetazoan fossils in terminal proterozoic phosphorites?

  • S. XiaoX. YuanA. Knoll
  • Geography, Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 2000
Evidence for Doushantuo eumetazoans is provided by millimeter-scale tubes that display tabulation and apical budding characteristic of some Cnidaria, especially the extinct tabulates.

A fossil record full of holes: The Phanerozoic history of drilling predation

The evolutionary history of drilling predation, despite a long and rich fossil record (Precambrian–Holocene), contains a 120 m.y. gap (Late Triassic–Early Cretaceous). Drilled bivalve and brachiopod

Effect of predation on the population dynamics of a Devonian brachiopod

A population of the Early Devonian brachiopod Discomyorthis musculosa, from Quebec, Canada, was preyed upon by a boring carnivore, possibly a gastropod. The predator preferentially attacked this

Predatorial Borings in Late Precambrian Mineralized Exoskeletons

The late Precambrian tube-forming Cloudina, the earliest known animal to produce a mineralized exoskeleton, shows evidence of having been attacked by shell-boring organisms, which would support the hypothesis that selection pressures from predation was a significant factor in the evolution of animal skeletons around the Precambrians-Cambrian boundary.

Shell structure and distribution of Cloudina, a potential index fossil for the terminal Proterozoic.

  • S. Grant
  • Environmental Science, Geography
    American journal of science
  • 1990
It is possible, moreover, to suggest that metazoan biomineralization occurred on a global scale by the latest Proterozoic, at the same time that evidence for complex multicellularity and locomotion in animals appears in siliciclastic "Ediacaran" rocks in the form of body and trace fossils.

Shell structure and distribution of Cloudina, a potential index fossil for the terminal Proterozoic.

  • Grant Sw
  • Environmental Science, Geography
  • 1990
Cloudina-bearing biosparites and biomicrites in the lower part of the Nama Group, Namibia, contain a wide morphological diversity of shell fragments that can all be attributed to the two named