Paleobiogeographic distribution of rudist bivalves (Hippuritida) in the Oxfordian–early Aptian (Late Jurassic–Early Cretaceous)

Sha, Jin; Cestari, Riccardo; Fabbi, Simone

doi:10.1016/j.cretres.2019.104289

Cited by 11 publications

(5 citation statements)

References 76 publications

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“…In Peru, Agriopleura blumenbachi Studer, 1834, (Likely Jerjesia sp. [See Masse et al, 2015bSha et al, 2020]) has been recorded from Barremianlower Aptian strata at Paita, Pan de Azucar, Estancia el Muerto (Gerth, 1928), and Paraarrettia peruviana (Gerth, 1928) (see Skelton, 1993, p. 21), was described from the Campanian -Maastrichtian of Cerro la Silla de Paita (Gerth, 1928), while Philip and Jaillard (2004) also reported on Upper Cretaceous rudist from Peru. The occurrence of Amphitriscoelus described here is the first record of rudists in Brazil (see Granier and Dias-Brito, 2015, for refutation of claims for Brazilian rudists) and provides evidence of a link between the Araripe Basin and the central Atlantic Caribbean province.…”

Section: Rudists In South Americamentioning

confidence: 99%

There are rudists in Brazil! Derived examples of cf. Amphitriscoelus Harris and Hodson, 1922, in the Araripe Basin, north-east Brazil: Implications for dating of the fossil Lagerstätten of the Santana and Crato formations

Martill

Brito

Donovan³

2021

Cretaceous Research

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Section: Rudists In South Americamentioning

confidence: 99%

There are rudists in Brazil! Derived examples of cf. Amphitriscoelus Harris and Hodson, 1922, in the Araripe Basin, north-east Brazil: Implications for dating of the fossil Lagerstätten of the Santana and Crato formations

Martill

Brito

Donovan³

2021

Cretaceous Research

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“…Prior to the Santonian, the margins and fragmented blocks that separated basins of Tethys and likely areas of upwelling (Frizon De Lamotte et al, 2011;Sha et al, 2020) were in areas where sediments played important roles in nutrient storage. According to the model, the upwelling would then have decreased δ 15 N through enhanced burial.…”

Section: Nitrogen Isotopes In a Warm Low Latitude Zonal Ocean: Tethysmentioning

confidence: 99%

The marine nitrogen cycle over the past 165 million years

Godfrey,

Omta,

Tziperman

et al. 2024

Preprint

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Nitrogen and phosphorus are the two macro-nutrients that limit biological productivity in the ocean. N is supplied by the biological fixation of N2 from a virtually inexhaustible atmospheric source whereas the supply of P depends on geological processes. However, N2 fixation can be limited by micro-nutrients, especially iron. To address the feedbacks between the N-cycle and productivity on geological timescales, we present a record of N and C isotopes over the past 165 Ma in marine sediments. The N isotope composition of the deep ocean averages 3.2‰, and while relatively stable for most of this time, did range between -2 and +9‰. In comparison, exported production in distal areas of the ocean over the last 90 Myr averages 7.0‰, and ranges between +3 and +11‰, with the greatest difference from deepwater occurring when vertical mixing was limited. These significant multi-million-year time scale fluctuations result from interactions between plate tectonics and ocean biogeochemistry. We further present a coupled climate model that shows that winds that induce upwelling change due to continental meander. Importantly, the response of N cycling to changes in upwelling differs as those centers have moved in response to continent configuration. Upwelling induced productivity along low latitude east-west orientated Tethyan coastlines was elevated throughout much of the late Jurassic to Eocene. As Tethys closed, changing N dynamics are recorded by high δ15N, arising from increased N losses from the water column compared to burial in sediments. As upwelling increased again in the late Miocene, albeit weaker than before, along north-south coasts with narrow shelves, and ocean fronts became more pronounced, another abrupt increase in δ15N occurred. The implications on N-fixation is that meridional overturning circulation has separated areas of N-fixation and upwelling, leading to limitation by N in the modern ocean, unlike the situation of Tethys. However, limitation of N-fixation by Fe in the vast Panthalassic Ocean led to the most severe N-starvation.

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“…A azul-claro, mares pouco profundos; a cinzento, terra emersa. (Figura adaptada) 28 A partir de meados do Cretácico Inferior (Aptiano, 121 a 113 Ma) e, sobretudo, do Cenomaniano (Cretácico Superior, dos 100 aos 94 Ma) em diante, os rudistas proliferaram por toda a zona intertropical, dominando nos ecossistemas marinhos de plataforma carbonatada do antigo oceano Tétis, entretanto desparecido, e do jovem Atlântico (FIGURA 3). Todavia, as estruturas produzidas pelos rudistas eram distintas das geradas pelos corais.…”

Section: Em Que Ambientes Proliferavam?unclassified

Breve guia de Paleontologia urbana

Silva,

Pereira

2023

Rev. Ciência Elem.

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A geodiversidade urbana e os fósseis de rudistas.O potencial educativo, de divulgação científica ou até, simplesmente, de fruição estética e lúdica da geodiversidade urbana é enorme. Os fósseis são elementos destacados da geodiversidade e, em contexto edificado, ocorrem integrados nos elementos de origem geológica que compõem a cidade, constituindo um recurso pedagógico riquíssimo, versátil e de fácil acesso 1 .São cada vez mais numerosos os aficionados da observação de fósseis urbanos e mais diversificadas e cativantes as atividades pedagógicas e de divulgação que neles se baseiam 2, 3, 4 . Já havia birdwatching, agora também temos fossilwatching, com a enorme vantagem de os fósseis serem bem menos esquivos! A) B) C)FIGURA 1. O calcário Liós e os rudistas na cidade. A) Fósseis de rudistas radiolitídeos no tampo em Liós Abancado de uma mesa numa esplanada na Baixa de Lisboa. Repare-se, no canto da mesa, nos cerca de cinco exemplares agregados, cimentados uns aos outros (vistos em corte transversal das valvas fixas, vide FIGURA 13). B) Fósseis de rudistas caprinulídeos em cortes variados no revestimento em Liós na fachada do n.º 93 da Rua Capitão Leitão, na esquina com a Rua Mendo Gomes de Seabra, em Almada. C) O pavimento em Liós da Praça do Comércio, em Lisboa, exibindo abundantes fósseis de rudistas radiolitídeos. Em todas as imagens, as secções maiores têm cerca de 10 cm de dimensão máxima.Contudo, para que estes fósseis urbanos possam ser fruídos em pleno, é fundamental existir informação que permita identificá-los e enquadrá-los adequadamente. Com o presente trabalho inicia-se uma série de breves guias de paleontologia urbana 5 tendo como objetivo contribuir para esse aproveitamento, fornecendo informação concisa, clara e atualizada, que possa servir de base a atividades pedagógicas, de divulgação científica ou simplesmente de procura e observação descontraída dos inúmeros fósseis que ocorrem na cidade. A série inicia-se com, porventura, os fósseis mais comuns e mais óbvios em contextos urbanos nacionais, os soma-

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Paleobiogeographic distribution of rudist bivalves (Hippuritida) in the Oxfordian–early Aptian (Late Jurassic–Early Cretaceous)

Cited by 11 publications

References 76 publications

There are rudists in Brazil! Derived examples of cf. Amphitriscoelus Harris and Hodson, 1922, in the Araripe Basin, north-east Brazil: Implications for dating of the fossil Lagerstätten of the Santana and Crato formations

There are rudists in Brazil! Derived examples of cf. Amphitriscoelus Harris and Hodson, 1922, in the Araripe Basin, north-east Brazil: Implications for dating of the fossil Lagerstätten of the Santana and Crato formations

The marine nitrogen cycle over the past 165 million years

Breve guia de Paleontologia urbana

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