Coping between crises: Early Triassic–early Jurassic bivalve diversity dynamics

Ros, Sonia Cruz; Renzi, Miquel de; Damborenea, Susana E.; Márquez-Aliaga, Ana

doi:10.1016/j.palaeo.2011.08.020

Cited by 28 publications

(20 citation statements)

References 128 publications

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“…The same tendency can be traced for the probability of surviving species (Figure 3(A)). This behaviour seems not to be concordant with the perspective supplied by other marine fossil records (Sepkoski 1978(Sepkoski , 1979(Sepkoski , 1984Stanley 2009;Ros et al 2011;Chen and Benton 2012;Ros and Echevarría 2012). Sepkoski (1984) described the main diversity trends of marine invertebrates through a logistic model that came back to the exponential behaviour (growth phase) after a strong perturbation by entering into a recovery period.…”

Section: Interpreting Paleodiversity Curvescontrasting

confidence: 75%

“…Sepkoski (1984) described the main diversity trends of marine invertebrates through a logistic model that came back to the exponential behaviour (growth phase) after a strong perturbation by entering into a recovery period. For example, for bivalves trajectories, Ros et al (2011, Figure 2), using standing diversity, document a characteristic pattern that could be associated with an exponential phase of diversification during the Early -Middle Triassic. After the end-Permian crises, the standing diversity of conodonts also shows a recovery pattern, which could be accommodated in a fast process of diversification (Figure 1(D)).…”

Section: Interpreting Paleodiversity Curvesmentioning

confidence: 99%

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New insights into the diversity dynamics of Triassic conodonts

et al. 2013

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International audienceIn this paper, we examine the diversity trends and the evolutionary patterns of Triassic conodonts through a newly powered large-scale data-set compiled directly from the primary literature. Paleodiversity dynamics analyses have been undertaken by working at the species level and using a system of time units based on biozone subdivisions for a fine temporal level resolution. The role of heterogeneous duration of taxa in diversity estimates has been evaluated through the probabilistic profiles. Results reveal three different stages in the diversity behaviour of Triassic conodonts from standing metrics delimited by two inflections at the mid-Anisian and mid-Carnian. Survivorship analysis supports this pattern. Origination-extinction metrics report a diversification pattern characterised by important fluctuations during the Lopingian-Induan (earliest Triassic), the early-middle Olenekian (Early Triassic) and the Anisian-Ladinian transitions (Middle Triassic), as well as in the early Late Triassic. In addition, two clear diversification peaks are observed in the late Carnian and in the end-Norian. Reported patterns are interpreted in the context of deep extinction and environmental instability by documenting the biological signal of the main diversification and turnover patterns observed from such records. This study emphasises the singularity behaviour of diversity trends derived from the conodont recor

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Section: Interpreting Paleodiversity Curvescontrasting

confidence: 75%

Section: Interpreting Paleodiversity Curvesmentioning

confidence: 99%

New insights into the diversity dynamics of Triassic conodonts

et al. 2013

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“…Como es de esperar, la distribución de estos organismos ha sido también significativamente influenciada por los eventos geotectónicos de gran escala que cambiaron considerablemente la configuración de la Tierra, como la fragmentación de la Pangea, que involucró la aparición de nuevas vías marinas y cambios drásticos en los patrones de circulación su-32 perficial de los océanos. Por último, desde una perspectiva biológica, es necesario recordar que a principios del Jurásico los bivalvos se estaban recuperando de una de las mayores crisis de biodiversidad (Triásico/Jurásico), a la vez que experimentaban una importante radiación evolutiva, adquiriendo las características de las faunas modernas (Ros et al, 2011(Ros et al, , 2012, y referencias allí citadas).…”

Section: Imlay (1965) Analizó Datos De Amonites De América Delunclassified

“…Inmediatamente después de la crisis biótica de fines del Triásico que afectó seriamente a los bivalvos (Ros et al, 2011(Ros et al, , 2012, disminuyó drásticamente el endemismo, y los patrones paleobiogeográficos previos (del Triásico Tardío) se desdibujaron casi completamente; en consecuencia, las faunas hettangianas eran muy homogéneas pero poco diversas. La recuperación relativamente rápida de varios grupos sistemáticos de bivalvos (Hallam, 1981(Hallam, , 1996McRoberts et al, 1995;Wignall y Bond, 2008;Hautmann et al, 2008;Damborenea et al, 2017), junto con el constante incremento de los taxones endémicos, permitió el reconocimiento de faunas Boreales, Tethyanas y Australes ya para el Sinemuriano tardío-Pliensbachiano temprano (Fig.…”

Section: Evolución General De Los Patrones Paleo-biogeográficosunclassified

Revisión De Los Biocoremas Marinos Globales Del Jurásico Según La Distribución De Los Moluscos Bivalvos

Damborenea

2017

PEAPA

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“…On a global scale, diversity of bivalves continued to increase until the end of the Triassic, with the highest rates occurring during the Middle to early Late Triassic (Hautmann ; Ros et al . ).…”

mentioning

confidence: 97%

New data from Oman indicate benthic high biomass productivity coupled with low taxonomic diversity in the aftermath of the Permian–Triassic Boundary mass extinction

Brosse

Bucher

Baud³

et al. 2019

LET

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A new Early Triassic marine fauna is described from an exotic block (olistolith) from the Ad Daffah conglomerate in eastern Oman (Batain), which provides new insights into the ecology and diversity during the early aftermath of the Permian–Triassic Boundary mass extinction. Based on conodont quantitative biochronology, we assign a middle Griesbachian age to the upper part of this boulder. It was derived from an offshore seamount and yielded both nektonic and benthic faunas, including conodonts, ammonoids, gastropods and crinoid ossicles in mass abundance. This demonstrates that despite the stratigraphically near extinction at the Permian–Triassic Boundary, Crinoidea produced enough biomass to form crinoidal limestone as early as middle Griesbachian time. Baudicrinus, previously placed in Dadocrinidae, is now placed in Holocrinidae; therefore, Dadocrinidae are absent in the Early Triassic, and Holocrinidae remains the most basal crown‐group articulates, originating during the middle Griesbachian in the Tethyan Realm. Abundant gastropods assigned to Naticopsis reached a shell size larger than 20 mm and provide another example against any generalized Lilliput effect during the Griesbachian. Whereas the benthic biomass was as high as to allow the resumption of small carbonate factories, the taxonomic diversity of the benthos remained low compared to post‐Early Triassic times. This slow benthic taxonomic recovery is here attributed to low competition within impoverished post‐extinction faunas.

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Coping between crises: Early Triassic–early Jurassic bivalve diversity dynamics

Cited by 28 publications

References 128 publications

New insights into the diversity dynamics of Triassic conodonts

New insights into the diversity dynamics of Triassic conodonts

Revisión De Los Biocoremas Marinos Globales Del Jurásico Según La Distribución De Los Moluscos Bivalvos

New data from Oman indicate benthic high biomass productivity coupled with low taxonomic diversity in the aftermath of the Permian–Triassic Boundary mass extinction

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