Decline of the Maastrichtian pelagic ecosystem based on planktic foraminifera assemblage change: Implication for the terminal Cretaceous faunal crisis

Abramovich, Sigal; Almogi‐Labin, Ahuva; Benjamini, Chaim

doi:10.1130/0091-7613(1998)026<0063:dotmpe>2.3.co;2

Cited by 76 publications

(61 citation statements)

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“…This is consistent with Tethyan shelf regions in general, e.g. Tunisia (Li and Keller, 1998b;Abramovich and Keller, 2002;Keller et al, 2002;Luciani, 2002), Israel (Abramovich et al, 1998), Egypt (Keller, 2002) and Bulgaria , whereas in deep sea environments trochospiral and multiserial taxa tend to be more common (e.g. Keller, 1998a, 1999).…”

Section: Species Census Datasupporting

confidence: 61%

“…Abundant Guembelitria are also observed in the uppermost Maastrichtian (CF2^CF1 zones) of the deeper outer shelf^upper bathyal environment of the northern Tethys, e.g. Bulgaria as well as Israel (Abramovich et al, 1998) and Egypt (Keller, 2002). A second Guembelitria bloom ( s 60%) is observed in the upper Maastrichtian CF5^CF4 interval in the Negev, Israel (Fig.…”

Section: S Abramovich Et Al / Marine Micropaleontology 47 (2002) 17^70mentioning

confidence: 91%

“…However, Guembelitria species are generally abundant in shallow neritic environments of the Maastrichtian, as studies have shown from Denmark (Schmitz et al, 1992;Keller et al, 1993), Kazakhstan (Pardo et al, 1999), Tunisia (Li and Keller, 1998a) and the eastern Tethys, i.e. Negev, Israel (Abramovich et al, 1998); Elles, Tunisia (Abramovich and Keller, 2002). Note that similar Guembelitria abundance patterns in Madagascar and the Negev suggest similar responses to high-stress late Maastrichtian conditions; the zone CF3 Gansserina gansseri abundance peak appears restricted to lower latitudes; the Globotruncana arca decrease in the upper CF4 zone (V67.5^66.8 Ma) may re£ect a high-stress shelf environment for this species; and the greater abundance of Heterohelix dentata relative to Heterohelix globulosa in Madagascar compared with the reverse in continental shelf sections of Tunisia and Israel, suggests H. dentata's ecological preference for shallower depths.…”

Section: S Abramovich Et Al / Marine Micropaleontology 47 (2002) 17^70mentioning

confidence: 99%

“…For example, the tropical index taxon for zone CF1, Plummerita hantkeninoides, is very common in the late Maastrichtian Tethys Ocean (e.g. Spain, Italy, Tunisia, Egypt, and Israel; Pardo et al, 1996;Luciani, 1997;Li and Keller, 1998b;Abramovich et al, 1998;Abramovich and Keller, 2002;Tantawy et al, 2002;Keller, 2002), but generally absent in middle latitudes including Madagascar (e.g. Site 525, Bulgaria, Kazakhstan, Denmark; Schmitz et al, 1992;Li and Keller, 1998a;Pardo et al, 1999;.…”

Section: Species Census Datamentioning

confidence: 99%

See 3 more Smart Citations

Age and paleoenvironment of the Maastrichtian to Paleocene of the Mahajanga Basin, Madagascar: a multidisciplinary approach

Abramovich

Keller

Adatte

et al. 2003

Marine Micropaleontology

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Section: Species Census Datasupporting

confidence: 61%

Section: S Abramovich Et Al / Marine Micropaleontology 47 (2002) 17^70mentioning

confidence: 91%

Section: S Abramovich Et Al / Marine Micropaleontology 47 (2002) 17^70mentioning

confidence: 99%

Section: Species Census Datamentioning

confidence: 99%

See 2 more Smart Citations

Age and paleoenvironment of the Maastrichtian to Paleocene of the Mahajanga Basin, Madagascar: a multidisciplinary approach

Abramovich

Keller

Adatte

et al. 2003

Marine Micropaleontology

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“…They represent a survival strategy often in the aftermath of mass extinctions and rarely with pre-extinction or other highly stress environments. However, the dwarfing in planktic foraminiferal species has recently been documented from upper Maastrichtian sediments of Israel, Egypt, Madagascar, and South Atlantic Site 525 (Abramovich et al, 1998Abramovich and Keller, 2003;Keller, 2002Keller, , 2003Keller, , 2005.…”

Section: Polyvalencementioning

confidence: 99%

Morphological Abnormalities and Dwarfism in Maastrichtian Foraminifera from the Cárdenas Formation, Valles–San Luis Potosí Platform, Mexico: evidence of paleoenvironmental stress

Omaña

Alencáster

Torres-Hernández

et al. 2012

BSGM

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During the early Maastrichtian an assemblage rich in large foraminifera, mostly composed of orbitoidal foraminifera, developed in the shallow-water deposits of the Cárdenas Formation (Valles-San Luis Potosí Platform, Mexico). Among them, the most abundant is Lepidorbitoides minima, some of which display a morphologically abnormal test consisting of polyvalent forms, conical tests and budding, which could be induced by abrupt changes in environmental factors. The occurrence of the abnormalities preceded the demise of this species and of all the larger foraminiferal association in the upper part of the Gansserina gansseri Zone (early Maastrichtian). The abnormalities could be induced by environmental stress, probably related to interplay of different events such as increased terrigenous input and the transition to deeper facies due to Laramide tectonic instability before the K/P boundary.A late Maastrichtian community of dwarfed planktic foraminifera composed of Trinitella scotti Brönnimann, Plummerita reicheli Brönnimann, Rugoglobigerina cf. macrocephala Brönnimann, Rugoglobigerina hexacamerata Brönnimann, Heterohelix punctulata (Cushman), Pseudoguembelina costulata (Cushman), Pseudotextularia intermedia de Klasz, Globigerinelloides asperus Bolli, Guembelitria cretacea Cushman, Rugoglobigerina rugosa (Plummer), Rugotruncana sp., Globotruncanita stuarti (de Lapparent), and Globotruncana arca (Cushman) developed in the upper part of the sequence. This uncommon morphology could also be related to the highly stressed paleoenvironmental conditions related to global climatic change and local tectonic activity. Associated with this planktic assemblage is a deeper-water dwarfed benthic foraminiferal community composed of Gyroidinoides nitidus (Reuss), Coryphostoma incrassata (Reuss), Pseudouvigerina plummerae Cushman, P. cretacea Cushman, Bolivina cretosa Cushman, Planulina texana Cushman and Cibicides harperi (Sandidge).Keywords: Abnormal foraminifera tests, Lepidorbitoides minima, dwarfed planktic foraminfera, Maastrichtian, Cárdenas Formation, Valles-San Luis Potosí Platform. ResumenDurante el Maastrichtiano temprano una asociación rica en macroforaminíferos compuesta principalmente de formas orbitoidales, se desarrolló en los depósitos de agua somera de la Formación Cárdenas (Plataforma Valles-San Luis Potosí, México

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Palaeoenvironmental changes across the Mid‐ and latest Maastrichtian events: Planktic foraminiferal inference from the Elles section (central Tunisia)

Farouk,

Jain,

Bazeen

et al. 2023

Geological Journal

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Based on quantitative changes in the Maastrichtian planktic foraminiferal species distribution patterns from the Elles section (central Tunisia), δ13C, δ18O‐based palaeotemperature and inferred proxies (species diversity, ecological associations, and depth ranking), the palaeoenvironment is inferred. Based on Constrained Clustering and corroborated by Non‐metric Multidimensional Scaling (NMDS), four statistically significant intervals are identified. Interval 1 (lower–middle part of CF5 Zone) is marked by a warm, oligotrophic, stable, and well‐stratified upper water column. Interval 2 (upper part of CF5 Zone), here designated as the pre‐Mid‐Maastrichtian Event (MME) event, is marked by stressed, warmer, moderately mesotrophic, and weakly stratified surface waters with an unstable upper water column. Interval 3 (CF4 Zone) encompasses the MME and is marked by warm, stable, mesotrophic surface waters with a moderately well‐stratified upper water column. The upper part of Interval 3, designated as post‐MME, is also marked by mesotrophic conditions, but with increased surface water warming, unstable and stressed conditions. Interval 4 (CF3–CF1 zones) shows the effects of the Indian Deccan volcanism, and is marked by warmer surface waters, mesotrophic, unstable, stressed environmental conditions, with a weakly‐stratified upper water column.

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Decline of the Maastrichtian pelagic ecosystem based on planktic foraminifera assemblage change: Implication for the terminal Cretaceous faunal crisis

Cited by 76 publications

References 0 publications

Age and paleoenvironment of the Maastrichtian to Paleocene of the Mahajanga Basin, Madagascar: a multidisciplinary approach

Age and paleoenvironment of the Maastrichtian to Paleocene of the Mahajanga Basin, Madagascar: a multidisciplinary approach

Morphological Abnormalities and Dwarfism in Maastrichtian Foraminifera from the Cárdenas Formation, Valles–San Luis Potosí Platform, Mexico: evidence of paleoenvironmental stress

Palaeoenvironmental changes across the Mid‐ and latest Maastrichtian events: Planktic foraminiferal inference from the Elles section (central Tunisia)

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