Naticid drilling predation on gastropod assemblages across the K–T boundary in Rajahmundry, India: New evidence for escalation hypothesis

Mallick, Sumanta; Bardhan, Subhendu; Das, Sayantani; Paul, Sandip; Goswami, Pritha

doi:10.1016/j.palaeo.2014.07.001

Cited by 31 publications

(21 citation statements)

References 41 publications

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“…The ostracod assemblage‐level drilling percentages recorded herein are similar to those reported from the Cretaceous and Palaeogene (Table ), suggesting that the Cretaceous–Palaeogene extinction had limited influence on the intensity of drilling predation on ostracods (contra a decrease right after the boundary for molluscs; Kelley & Hansen , ; Mallick et al . ).…”

Section: Discussionmentioning

confidence: 97%

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A small yet occasional meal: predatory drill holes in Paleocene ostracods from Argentina and methods to infer predation intensity

et al. 2019

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Ostracods are common yet understudied prey item in the fossil record. We document drill holes in Paleocene (Danian) ostracods from central Argentina using 9025 specimens representing 66 species. While the percentage of drilled specimens at assemblage-level is only 2.3%, considerable variation exists within species (0.3-25%), suggesting prey preference by the drillers. This preference is not determined by abundance because no significant correlation is found between species abundance and drilling percentages. Seven methods were used, some of which are new, to quantify drilling percentages for the abundant and commonly drilled Togoina argentinensis. The resulting range, from 9.9% to 14.6%, suggests that drilling percentages are fairly insensitive to the method used, implying that comparisons across studies are possible. This information, combined with data from the literature, suggests the Cretaceous-Palaeogene mass extinction may have had a limited effect on drilling intensity in ostracods. The cylindrical (Oichnus simplex) and parabolic (O. paraboloides) drill holes from Argentina may have been caused primarily by naticid and possibly muricid gastropods. Two oval drill holes (O. ovalis) are morphologically similar to octopod drill holes, but their small size, the fact that extant octopods are not known to drill ostracods and the absence of such holes in co-occurring gastropods, preclude ascription to a predator clade. Drill holes are located preferentially in the median and dorsal regions, where most soft tissue, including the adductor muscle, is located. Drilled specimens are statistically taller than non-drilled specimens for T. argentinensis and larger predators selected larger ostracods. The drilling percentage does not significantly differ in ornamented ostracods.

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Section: Discussionmentioning

confidence: 97%

“…; Mallick et al . ; Harper ; Klompmaker et al . ) it is no surprise that drilled ostracods are also known.…”

mentioning

confidence: 99%

A small yet occasional meal: predatory drill holes in Paleocene ostracods from Argentina and methods to infer predation intensity

et al. 2019

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“…S1). This is expected because outer borehole diameter is related to predator size (Allmon et al, 1990;Hagadorn and Boyajian, 1997;Mallick et al, 2014;Wiltse, 1980). Minimum prey size (measured shell length + distance to theoretical apex) similarly correlates with OBD.…”

Section: Drilling Predationmentioning

confidence: 91%

“…Predatory drill holes represent biotic interactions directly preservable in the fossil record (Alexander and Dietl, 2003;Dudley and Vermeij;1978;Klompmaker and Kelley, 2015;Li et al, 2011;Vermeij et al, 1980,), and the frequency of drilling (DF) is often used as an indication of predation intensity (Allmon et al, 1990;Mallick et al, 2014;Vermeij, 1987). Turritelline shells collected from bulk samples are often broken (Fortunato, 2007), but this does not preclude evaluation of drilling predation if multiply drilled shells are rare (Johnson et al, in review).…”

Section: Evaluation Of Drilling Predationmentioning

confidence: 99%

Paleoecology and paleoenvironmental implications of turritelline gastropod-dominated assemblages from the Gatun Formation (Upper Miocene) of Panama

Anderson

Hendy

Johnson

et al. 2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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Turritelline-dominated assemblages (TDAs) frequently occur in the middle-late Miocene Gatun Formation, and are not uncommon features in the broader fossil record. By gaining a better understanding of the paleoenvironment and taphonomic processes leading to their formation we can gain insight into the conditions in the Western Atlantic (WA) during the Miocene shoaling of the Central American Seaway, as well as the conditions which may lead to TDA formation generally. TDA and non-TDA beds within the Gatun were examined for shell orientation, sclerobiont coverage, drilling predation frequency, and peeling-repair frequency, in addition to sediment composition. The most abundant species, T. altilira, was also examined using oxygen isotopic sclerochronology to compare growth rate and conditions during the formation of TDA and non-TDA beds. Mean annual range of temperature (MART) was found to be 6.2°C, with a moderate associated negative O-C correlation. These data confirm the influence of Tropical Eastern Pacific (TEP) upwelling waters in the WA at this time. Upwelling conditions were found to be associated with all T. altilira, regardless of their source, indicating that Gatun TDAs are not the result of variation in nutrient supply. Orientation data from within a TDA, grain size, and sclerobiont coverage all suggest that TDAs in the Gatun are the result of variation in sediment supply/winnowing. T. altilira was found to live up to 3 years, growing between 50 and 60 mm in the first year of life with a subsequent decline in growth rate. We used the Theoretical Apex System and a calculated minimum number of individuals to determine location and frequency of drilling predation.

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“…Again in recent years there has been a welcome expansion of horizons and new data are being published from different regions such as India (Mallick et al . , ), South America (Martinelli et al . ; Visaggi & Kelley ) and Australasia (Tuura et al .…”

Section: A Pressing Need To Expand Data Setsmentioning

confidence: 99%

Uncovering the holes and cracks: from anecdote to testable hypotheses in predation studies

Harper

2016

Palaeontology

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Biological interactions between organisms have long been believed to be very important in structuring communities and, when scaled up over geological time, in the evolution of organisms. Investigations of palaeontological evidence for predator–prey interactions have been popular pursuits, and a number of attractive hypotheses have been proposed which link increased predation pressure with a wide range of morphological and ecological changes which are apparent over the course of the Phanerozoic. In particular studies of fossil drill holes and repair scars in shelly prey have been common targets for research. However, the nature of some of our data has been rather anecdotal and restricted in range. Perhaps we should be more concerned that we are not picking up the true range of natural variability. This paper aims to highlight the sources of variability in our data and, going forward, to urge the collection of quantitative data from many more samples and (palaeo)environmental settings in order that we might properly be able to separate the intrinsic natural variability in our data from robust temporal or spatial trends.

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Naticid drilling predation on gastropod assemblages across the K–T boundary in Rajahmundry, India: New evidence for escalation hypothesis

Cited by 31 publications

References 41 publications

A small yet occasional meal: predatory drill holes in Paleocene ostracods from Argentina and methods to infer predation intensity

A small yet occasional meal: predatory drill holes in Paleocene ostracods from Argentina and methods to infer predation intensity

Paleoecology and paleoenvironmental implications of turritelline gastropod-dominated assemblages from the Gatun Formation (Upper Miocene) of Panama

Uncovering the holes and cracks: from anecdote to testable hypotheses in predation studies

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