Seeking a better life in the plankton

Leckie, R. Mark

doi:10.1073/pnas.0907091106

Cited by 27 publications

(15 citation statements)

References 20 publications

(18 reference statements)

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“…This effect was hypothetically considered a relict from benthic ancestors primed to utilize excess organic material of terrestrial or upwelling‐derived origin. Similar evolutionary iterations as a response to eutrophic conditions are hypothesized to have taken place in the geological record [ Leckie , 2009]. Analogously, Pardo and Keller [2008] considered blooms of Guembelitria around the K‐Pg transition to be a response to algal blooms and eutrophication in the surface water.…”

Section: Discussionmentioning

confidence: 76%

Global climate change and planktic foraminiferal response in the Maastrichtian

et al. 2010

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[1] The lengthy warm, stable climate of the Cretaceous terminated in the Campanian with a cooling trend, interrupted in the early and latest Maastrichtian by two events of global warming, at ∼70-68 Ma and at 65.78-65.57 Ma. These climatic oscillations had a profound effect on pelagic ecosystems, especially on planktic foraminiferal populations. Here we compare biotic responses in the tropical-subtropical (Tethyan) open ocean and mesotrophic (Zin Valley, Israel) and oligotrophic (Tunisia) slopes, which correlate directly with global warming and cooling. The two warming events coincide with blooms of Guembelitria, an extreme opportunist genus best known as the main survivor of the Cretaceous-Paleogene (K-Pg) catastrophe. In the Maastrichtian, Guembelitria bloomed in the uppermost surface water above shelf and slope environments but failed to reach the open ocean as it did at K-Pg. The coldest interval of the late Maastrichtian (∼68-65.78 Ma) is marked by an acme of the otherwise rare species Gansserina gansseri, a deep-dwelling keeled globotruncanid. The G. gansseri acme event can be traced from the deep ocean even onto the Tethyan slope, marking copious production and circulation of cold intermediate water. This acme is abruptly terminated by extinction of the species, a dramatic reversal attributed to a short-term global warming episode. This extinction corresponds precisely with the second bloom of Guembelitria that began ∼300 kyr prior to the K-Pg event. The antithetical relationship between blooming of Guembelitria and the G. gansseri acme reflects planktic foraminiferal sensitivity to warm-cool-warm-cool climatic oscillations marking the end of the Cretaceous.

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Section: Discussionmentioning

confidence: 76%

Global climate change and planktic foraminiferal response in the Maastrichtian

et al. 2010

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“…The current knowledge that planktonic foraminiferal diversity parallels the global sea‐level fluctuations of the Mesozoic (Hart & Bailey, ; Hart, ; Leckie, ) supports this explanation. During the mid‐Cretaceous, calcareous oceanic plankton progressively invaded the epicontinental seas, probably in response to the long‐term sea‐level rise from the late Albian through to the Campanian (Hay, ).…”

Section: Discussionmentioning

confidence: 92%

The Coniacian–Santonian sedimentary record in southern Tanzania (Ruvuma Basin, East Africa): Planktonic foraminiferal evolutionary, geochemical and palaeoceanographic patterns

Petrizzo

Berrocoso²,

Falzoni

et al. 2016

Sedimentology

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A 101 m thick stratigraphically complete late Coniacian-early Santonian (ca 89 to 83 Ma) sedimentary sequence drilled in Tanzania (Tanzania Drilling Project Site 39) allows, for the first time, examination of the planktonic foraminiferal biostratigraphy and evolution, the depositional history, and geochemical patterns of the subtropical-tropical Indian Ocean region. The sedimentary succession corresponds to an outer shelf to upper slope setting and is dominated by calcareous clayey siltstones and mudstones. The occurrences of Tethyan marker species enable application of the tropical biozonation including identification of the Dicarinella concavata and Dicarinella asymetrica Zones. In addition, Tanzania Drilling Project Site 39 is proposed as reference section for the Coniacian/Santonian boundary in the Indian Ocean with the boundary placed at the lowest occurrence of Globotruncana linneiana in agreement with the Global Stratotype Section and Point (Spain). The record at Tanzania Drilling Project Site 39 provides a unique opportunity to document the planktonic foraminiferal evolution in a subtropical marginal sea environment during a key period in their evolutionary history characterized by a major radiation among the deep-dwelling taxa. Combined documentation of lithological and geochemical changes (%CaCO 3 , %C org , d 13 C carb and d 18 O carb ) reveals a setting influenced by continental-derived nutrients in the Dicarinella concavata Zone (Lindi Formation) with a change to higher carbonate production and reduced surface water primary productivity in the overlying Dicarinella asymetrica Zone (Nangurukuru Formation). Planktonic foraminiferal assemblage changes mirror the depositional and geochemical trends and indicate a progressive shift from a more eutrophic to a more oligotrophic regime through time. At the local scale, this palaeoceanographic scenario is consistent with the deepening of coastal Tanzania in response to the Late Cretaceous marine transgression registered in south-east Tanzania. Because the tectonic evolution and sea-level rise along the East Africa continental margin is superimposed on the Coniacian-Campanian global long-term sea-level high, this study hypothesizes that 252

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“…Diminutive taxa with microperforate wall textures are the most diverse group in the earliest Danian (e.g., Olsson et al 1992, Hull et al 2011, and the discovery that some modern microperforate species are both planktic and benthic (tychopelagic) suggests that this versatile lifestyle may have been key to survival during the K-Pg impact event (Darling et al 2009). Several properties of the microperforate genus Zeauvigerina suggest a tychopelagic lifestyle during the Danian (Leckie 2009); however, isotopic evidence for mode of life is equivocal for this genus during the Danian, though later zeauvigerinid species are clearly planktic (D'Haenens et al 2012). Danian faunas dominated by tiny microperforate taxa are succeeded by early photosymbiotic Praemurica species starting at ∼63.5 Ma (Birch et al 2012), though this succession appears not to have been globally synchronous (Hull et al 2011).…”

Section: The Cretaceous-paleogene Boundary and Danian Recoverymentioning

confidence: 99%

“…Although the present-day rate of carbon input is probably unprecedented (Zeebe & Zachos 2013), the study of past carbon cycle perturbations, such as the PETM (∼56 Ma) and the Cretaceous OAEs, will continue to provide much-needed insight into our possible future (Hönisch et al 2012). Confirmation, through the use of molecular phylogenetics, of the long-held suspicion that certain microperforate groups of planktic foraminifera are tychopelagic is also altering our perception of foraminiferal evolution (Leckie 2009). This line of research has shown that the planktic foraminifera are a polyphyletic group with their benthic progenitors repeatedly colonizing the epipelagic realm (e.g., Darling et al 1997).…”

Section: Future Research Avenuesmentioning

confidence: 99%

Macroevolutionary History of the Planktic Foraminifera

Fraass

Kelly

Peters

2015

Annu. Rev. Earth Planet. Sci.

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Planktic foraminifera are an abundant component of deep-sea sediment and are critical to geohistorical research, primarily because as a biological and geochemical system they are sensitive to coupled bio-hydro-lithosphere interactions. They are also well sampled and studied throughout their evolutionary history. Here, we combine a synoptic global compilation of planktic foraminifera with a stochastic null model of taxonomic turnover to identify statistically significant increases in macroevolutionary rates. There are three taxonomic diversifications and two distinct extinctions in the history of the group. The well-known Cretaceous-Paleogene extinction is of unprecedented magnitude and abruptness and is linked to rapid environmental perturbations associated with bolide impact. The Eocene-Oligocene boundary extinction occurs due to a combination of factors related to a major reorganization of the global climate system. Changes in ocean stratification, seawater chemistry, and global climate recur as primary determinants of both macroevolutionary turnover in planktic foraminifera and spatiotemporal patterns of deep-sea sedimentation over the past 130 Myr.

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Seeking a better life in the plankton

Cited by 27 publications

References 20 publications

Global climate change and planktic foraminiferal response in the Maastrichtian

Global climate change and planktic foraminiferal response in the Maastrichtian

The Coniacian–Santonian sedimentary record in southern Tanzania (Ruvuma Basin, East Africa): Planktonic foraminiferal evolutionary, geochemical and palaeoceanographic patterns

Macroevolutionary History of the Planktic Foraminifera

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