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Journal ArticleDOI

Record of intense predatory drilling from Upper Jurassic bivalves of Kutch, India: Implications for the history of biotic interaction

TL;DR: In this article, the authors reported 148 drilled bivalve specimens of a single species from the Upper Jurassic horizon in western India, the highest number for any taxon ever recorded since Precambrian to Cretaceous.
About: This article is published in Palaeogeography, Palaeoclimatology, Palaeoecology.The article was published on 2012-02-01. It has received 34 citations till now. The article focuses on the topics: Mesozoic marine revolution & Drilling.
Citations
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Journal ArticleDOI
TL;DR: This assemblage of bivalves from Miocene marine deposits of Kutch, India demonstrates preferred selection of prey in terms of taxonomy, size, site and valve by the predatory gastropod guided by the energy maximization strategy of the predator.

45 citations


Cites background from "Record of intense predatory drillin..."

  • ...The only study on drilling predation from this area focuses on Mesozoic assemblage (Bardhan et al., 2012)....

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Journal ArticleDOI
01 May 2013-PALAIOS
TL;DR: It is demonstrated that threshold current velocity for the entrainment of a convex-up shell is generally determined by its size, a result corroborating previous findings and underscore the concept that the final distribution of shells following a transportation event may yield a bivalve population significantly different from the original one.
Abstract: Fossilized shell assemblages are often the result of postmortem transportation. It is therefore crucial to identify biases introduced due to differences in the hydrodynamic properties of shells to ensure the validity of ecological interpretations. In a flow tank study with the bivalve Donax scortum Linnaeus, 1758, we found that shell size, shape, and ornamentation played an important role in dictating the hydrodynamic properties of shells. This study demonstrates that threshold current velocity for the entrainment of a convex-up shell is generally determined by its size, a result corroborating previous findings. We found that a smaller shell is mobilized with a lower velocity compared to a larger one. Additionally, we found ornamentation of a shell also played a significant role in transportation. Unlike previous studies, we have demonstrated that altered smooth shells require a higher velocity for transportation compared to fresh shells with pronounced ornamentation. The movement trajectory of a shell depends on its asymmetry. The right and left valves of a single individual are deflected in distinctly different directions. This study shows that the extent of such deflection is dependent on the size of the valve and the velocity of the flow. Using a simulation based on our experimental data, we have also demonstrated the effect that transportation bias can have in modifying a shell assemblage. The results of this study underscore the concept that the final distribution of shells following a transportation event may yield a bivalve population significantly different from the original one.

33 citations


Cites background from "Record of intense predatory drillin..."

  • ...Since predation studies in deep time rely heavily on the assumption of the unbiased nature of the assemblage (Kelley and Hansen, 2003, and references therein; Chattopadhyay, 2011; Bardhan et al., 2012; Chattopadhyay and Dutta, 2013), this should be investigated further....

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  • ...Many paleontological studies based on bivalved mollusks utilize assemblage-level data (Chattopadhyay, 2011, 2013; Bardhan et al., 2012)....

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Journal ArticleDOI
TL;DR: In this paper, the authors present quantitative evidence of drilling from the Late Triassic (Carnian) Cassian Formation of Italy and the Middle Triassic Lower Muschelkalk of Poland, documenting the first drill holes in Triassic brachiopods.

30 citations


Cites background from "Record of intense predatory drillin..."

  • ...Bardhan et al. (2012) found that 29.4–32.5% of Late Jurassic Neocrassina subdepressa Blake and Hudleston, 1877, was drilled; other drilled taxa include Pinna mitis Phillips, 1829, and Grammatodon virgatus Sowerby, 1840....

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Journal ArticleDOI
TL;DR: Detailed quantitative analyses of the present study revealed that N. tigrina attacks opportunistically on all infaunal and epifaunal intertidal bivalve and gastropod prey taxa, indicating that the predator was highly efficient.

29 citations

References
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Book
27 May 1994
TL;DR: Paleogeographic data can be used to reconstruct global reconstructions of land area through time as mentioned in this paper and plotting of paleogeographical data to show changes in land area over time.
Abstract: 1. Introduction 2. Global reconstructions 3. Biostratigraphic, time and magnetic polarity scales 4. Plotting paleogeographic data 5. Changes in land area through time 6. References 7. Paleocoastline maps 8. Bibliography.

1,044 citations


"Record of intense predatory drillin..." refers background in this paper

  • ...The Early to Middle Oxfordian age of the area has been established based on time diagnostic ammonite assemblage (Fursich et al., 2001; Alberti et al., 2011)....

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  • ...In our two consecutive fieldworks at several sections near Bhakri village, we have collected drilled shells from the Oxfordian Dhosa Oolite bed....

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  • ...All specimens come from the Upper Jurassic (Oxfordian) Dhosa Oolite Member of the Chari Formation....

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  • ...Our present find extends it up to the subtropic of the southern hemisphere where India was positioned during Oxfordian (Smith et al., 1994)....

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Book
21 May 1987
TL;DR: Geerat Vermeij demonstrates that escalation--the process by which species adapt to, or are limited by, their enemies as the latter increase in ability to acquire and retain resources--has been a dominant theme in the history of life despite frequent episodes of extinction.
Abstract: Here is one biologist's interpretation of the chronology of life during the last six hundred million years of earth history: an extended essay that draws on the author's own data and a wide-ranging literature survey to discuss the nature and dynamics of evolutionary change in organisms and their biological surroundings. Geerat Vermeij demonstrates that escalation--the process by which species adapt to, or are limited by, their enemies as the latter increase in ability to acquire and retain resources--has been a dominant theme in the history of life despite frequent episodes of extinction.

983 citations

Book
21 May 1987

421 citations


"Record of intense predatory drillin..." refers background in this paper

  • ...However, none of the species found in the studied area is related to predatory clades that are known to drill (see Vermeij, 1987; Kabat, 1990; Kowalewski, 1993)....

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  • ...…they have been used extensively for evaluating hypotheses that stress the evolutionary importance of biotic interactions, such as, coevolution (e.g., DeAngelis et al., 1985; Kitchell, 1986, 1990) and escalation (e.g., Vermeij, 1987; Kelley and Hansen, 1993, 1996; Dietl and Alexander, 2000)....

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  • ...Frequency of drilling is important in understanding the intensity of predation (e.g., Vermeij, 1987; Allmon et al., 1990; Kelley and Hansen, 1993)....

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  • ...Biotic interaction, especially predation, is one of the important driving forces of natural selection in modern marine environments (Carriker and Yochelson, 1968; Vermeij, 1987; Stanley, 2008)....

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Journal ArticleDOI
TL;DR: Skeletal concentrations are ubiquitous in Bathonian-Oxfordian shallow water sediments of the pericratonic basins of Kachchh and Rajasthan, western India.
Abstract: Skeletal concentrations are ubiquitous in Bathonian–Oxfordian shallow water sediments of the pericratonic basins of Kachchh and Rajasthan, western India. By analysing the biofabric of the concentrations and the taphonomic signatures of individual components, it is possible to distinguish between the final concentration process (recorded by the biofabric) and events taking place prior to final deposition (recorded by taphonomic signatures). The skeletal concentrations are grouped in nine genetic types ranging from fair weather wave concentrations to storm concentrations and condensed concentrations. They mainly reflect biological and hydraulic processes, and in some instances permit estimates of their duration and show a rough zonation along a bathymetric gradient. Plotted against the stratigraphic sections, the skeletal concentrations show, in accordance with other sedimentological data, three orders of bathymetric trends. The first two orders are shallowing–deepening cycles which possibly correspond to eustatic changes in sea level; the third order represents parasequences with a strongly asymmetric sedimentary record. Skeletal concentrations are a useful additional tool in basin analysis, but are best used in combination with other data.

290 citations


"Record of intense predatory drillin..." refers background in this paper

  • ...Interestingly our samples were collected from a locality quite close to that of Fürsich and Oschmann, 1993 with similar depositional environment show a 30 fold increase in drilling frequency....

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  • ...The lone Indian drilled shell was found from the Middle Jurassic of the Kutch basin, Gujarat, western India (Fürsich and Oschmann, 1993)....

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01 Jan 1981

289 citations


"Record of intense predatory drillin..." refers background in this paper

  • ...Therefore the identity of the Bhakri driller or drillers still remains elusive— gastropods appear to be likely culprits, but without catching the drilling organism “in the act” (Baumiller, 1990), we cannot unambiguously assign these holes to a specific drilling organism (Bromley, 1981)....

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  • ...Since the produced drill holes differmorphologically (circular for gastropods and oval for octopod), it is possible to identify the driller by studying the drill holes (Bromley, 1981)....

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