The first crocodyliform from the Chubut Group (Chubut Province, Argentina) and its phylogenetic position within basal Mesoeucrocodylia

Leardi, Juan Martín; Pol, Diego

doi:10.1016/j.cretres.2009.08.002

Cited by 39 publications

(18 citation statements)

References 28 publications

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“…The teeth of Uberabasuchus ( Carvalho, Ribeiro & Avilla, 2004 ) are much more like those of baurusuchids in having massive conical teeth, with serrations posteriorly only. Barcinosuchus possesses teeth on which the serrations are quite similar to those on the Hungarian tooth ( Leardi & Pol, 2009 : Fig. 3G), though the presence or absence of serration on the carinae varies among the teeth.…”

Section: Resultsmentioning

confidence: 93%

An enigmatic crocodyliform tooth from the bauxites of western Hungary suggests hidden mesoeucrocodylian diversity in the Early Cretaceous European archipelago

Ősi

Rabi

Makádi

2015

PeerJ

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Background. The Cretaceous of southern Europe was characterized by an archipelago setting with faunas of mixed composition of endemic, Laurasian and Gondwanan elements. However, little is known about the relative timing of these faunal influences. The Lower Cretaceous of East-Central Europe holds a great promise for understanding the biogeographic history of Cretaceous European biotas because of the former proximity of the area to Gondwana (as part of the Apulian microcontinent). However, East-Central European vertebrates are typically poorly known from this time period. Here, we report on a ziphodont crocodyliform tooth discovered in the Lower Cretaceous (Albian) Alsópere Bauxite Formation of Olaszfalu, western Hungary.Methods. The morphology of the tooth is described and compared with that of other similar Cretaceous crocodyliforms.Results. Based on the triangular, slightly distally curved, constricted and labiolingually flattened crown, the small, subequal-sized true serrations on the carinae mesially and distally, the longitudinal fluting labially, and the extended shelves along the carinae lingually the tooth is most similar to some peirosaurid, non-baurusuchian sebecosuchian, and uruguaysuchid notosuchians. In addition, the paralligatorid Wannchampsus also possesses similar anterior teeth, thus the Hungarian tooth is referred here to Mesoeucrocodylia indet.Discussion. Supposing a notosuchian affinity, this tooth is the earliest occurrence of the group in Europe and one of the earliest in Laurasia. In case of a paralligatorid relationship the Hungarian tooth would represent their first European record, further expanding their cosmopolitan distribution. In any case, the ziphodont tooth from the Albian bauxite deposit of western Hungary belongs to a group still unknown from the Early Cretaceous European archipelago and therefore implies a hidden diversity of crocodyliforms in the area.

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Section: Resultsmentioning

confidence: 93%

An enigmatic crocodyliform tooth from the bauxites of western Hungary suggests hidden mesoeucrocodylian diversity in the Early Cretaceous European archipelago

Ősi

Rabi

Makádi

2015

PeerJ

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“…Esta, além de Peirosaurus, engloba atualmente pelo menos mais seis táxons do Cretáceo sul-americano (Price, 1955;Gasparini et al, 1991;Carvalho et al, 2004;Carvalho et al, 2007;Leardi & Pol, 2009;Campos et al, 2011;Martinelli et al, 2012); porém, alguns táxons do Cretáceo Inferior africano também foram alocados a Peirosauridae, como Hamadasuchus do Marrocos (Buffetaut, 1994;Larsson & Sues, 2007) e Stolokrosuchus do Níger (Larsson & Gado, 2000). A diagnose proposta por Gasparini (1982) inclui características como o focinho moderadamente alto, com um processo maxilar em forma de cunha penetrando dorsalmente no pré-maxilar, que por sua vez é muito pequeno em vista ventral, e o 14º e 15º dentes maxilares especializados.…”

Section: -Notosuchiaunclassified

Revisão da família Baurusuchidae e seu posicionamento filogenético dentro do clado Mesoeucrocodylia

Nascimento¹

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“…Peirosaurids (and closely related forms) also have their initial diversity in the Aptian and through the "middle" Cretaceous, being recorded in South America (Barcinosuchus; Leardi and Pol, 2009) and Africa (Hamadasuchus, Stolokrosuchus, Kaprosuchus;Larsson and Gado, 2000;Larsson and Sues, 2007;Sereno and Larsson, 2009). However, they differ slightly from the two previous groups in that they are recorded in South America throughout the rest of the Cretaceous, during the Turonian-Santonian (Lomasuchus, Gasparinisuchus, Montealtosuchus;Gasparini et al, 1991;Carvalho et al, 2007;Martinelli et al, 2012) and the latest Cretaceous (Peirosaurus, Uberabasuchus; Price 1955;Carvalho et al, 2004).…”

Section: Diversity Patterns Of Notosuchian Subcladesmentioning

confidence: 99%

Diversity Patterns of Notosuchia (Crocodyliformes, Mesoeucrocodylia) During the Cretaceous of Gondwana

Pol¹,

Leardi²

2015

PEAPA

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Notosuchia is a diverse clade of Crocodyliformes that achieved a remarkable diversity during the Cretaceous. This group is particularly abundant in continental deposits of Gondwana throughout the Cretaceous, especially in South America. Notosuchia was first recognized as a distinct group by the early work of Gasparini in the 1970's and in the last decades numerous discoveries and studies have increased the geographical, temporal and taxonomical scope of this clade. Here we analyze the patterns of diversity of Notosuchia during the Cretaceous, considering their taxic and phylogenetic diversity, as well as implementing sampling corrections aiming to account for the uneven fossil record of different stages of the Cretaceous. We identify two subsequent pulses of diversification in the late Early Cretaceous and the middle Late Cretaceous, followed by two separate extinction events that occurred during the latest Cretaceous (Campanian/Maastrichtian). We discuss the contribution of the South American, African, and Malagasy fossil records to the diversity curves, which indicates the African fossil record dominates the first pulse of diversification and the South American fossil record exclusively compose the second pulse of diversification. Finally, we analyze the patterns of diversity shown by the different subclades of Notosuchia throughout the Cretaceous, which reveal markedly different evolutionary dynamics of four major groups of notosuchian crocodyliforms.

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The first crocodyliform from the Chubut Group (Chubut Province, Argentina) and its phylogenetic position within basal Mesoeucrocodylia

Cited by 39 publications

References 28 publications

An enigmatic crocodyliform tooth from the bauxites of western Hungary suggests hidden mesoeucrocodylian diversity in the Early Cretaceous European archipelago

An enigmatic crocodyliform tooth from the bauxites of western Hungary suggests hidden mesoeucrocodylian diversity in the Early Cretaceous European archipelago

Revisão da família Baurusuchidae e seu posicionamento filogenético dentro do clado Mesoeucrocodylia

Diversity Patterns of Notosuchia (Crocodyliformes, Mesoeucrocodylia) During the Cretaceous of Gondwana

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