Upper Cretaceous (Maastrichtian) Landvertebrate Diversity in Alba District (Romania)

Codrea, Vlad; Barbu, Ovidiu; Jipa-Murzea, C.

doi:10.12681/bgsg.11221

Cited by 12 publications

(16 citation statements)

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“…Lizards were first recognized in the Romanian uppermost Cretaceous by Grigorescu et al (1985) , and subsequently have been found in most microvertebrate bonebeds from the Haţeg and Transylvanian basins ( Grigorescu et al 1999 ; Codrea et al 2002 , 2010a ; Folie and Codrea 2005 ; Csiki et al 2008 ). In addition, eggshell fragments (probably belonging to squamates) are also common at these sites.…”

Section: The Late Cretaceous Continental Vertebrate Faunas Of Europementioning

confidence: 99%

“…Hungary: 1 Iharkút and Ajka ( Ősi et al 2012b ). Romania: 1 Rusca Montană Basin ( Vasile and Csiki 2011 ; Codrea et al 2012 ) 2 Haţeg Basin ( Grigorescu 2005 , 2010; Weishampel et al 2010 ) 3 Alba Iulia-Sebeș (southwestern Transylvanian Basin; Codrea et al 2010a , c ; Vremir 2010 ) 4 Borod Basin ( Nopcsa 1902b ) 5 Jibou (northwestern Transylvanian Basin; Codrea and Godefroit 2008 ; Codrea et al 2010c ).…”

Section: The Late Cretaceous Continental Vertebrate Faunas Of Europementioning

confidence: 99%

“…10 ). Moreover, the distribution of the Maastrichtian vertebrate assemblage was extended significantly outside the Haţeg Basin by discoveries in the adjoining intermontane Transylvanian ( Codrea and Godefroit 2008 ; Codrea et al 2010a , b , c ; Vremir 2010 ) and Rusca Montană Basins ( Vasile and Csiki 2011 ; Codrea et al 2012 ). During the same period, intense multidisciplinary research targeting the fossil-bearing deposits expanded knowledge on their geological setting, stratigraphy, age, and paleoenvironments ( Grigorescu 2010a ).…”

Section: The Late Cretaceous Continental Vertebrate Faunas Of Europementioning

confidence: 99%

“…Albanerpetontid fossils are almost as numerous as those of the anurans, but appear to belong exclusively to the genus Albanerpeton ( Grigorescu et al 1999 ; Codrea et al 2002 ; Folie and Codrea 2005 ; Codrea et al 2010a ; Vasile and Csiki 2011 ), a geographically widespread mid-Cretaceous to early Pleistocene taxon ( Gardner and Böhme 2008 ). The more precise species-level affinities of the Transylvanian albanerpetontids are currently under study, but they appear to be closely related to the derived clade of ’robust-snouted’ species of Albanerpeton ( Folie and Codrea 2005 ; Venczel et al 2013 ; Z.Cs.-S., personal observation).…”

Section: The Late Cretaceous Continental Vertebrate Faunas Of Europementioning

confidence: 99%

“…Additional non-avian theropod specimens discovered over the past two decades (mainly isolated teeth) have been assigned to a variety of theropods, including an indeterminate medium-sized taxon ( Smith et al 2002 ), velociraptorine dromaeosaurids ( Weishampel and Jianu 1996 ; Csiki and Grigorescu 1998 ; Grigorescu et al 1999 ; Codrea et al 2002 ; Vasile 2008 ; Codrea et al 2010a , 2012 ), and troodontids ( Codrea et al 2002 , 2012 ; Smith et al 2002 ). Other specimens have been referred to the tooth form genera Richardoestesia ( Codrea et al 2002 ; Vasile 2008 ; Vasile and Csiki 2011 ; Vasile et al 2012 ), Euronychodon ( Csiki and Grigorescu 1998 ; Codrea et al 2002 ; Csiki et al 2008 ; Vasile 2008 ), and Paronychodon ( Codrea et al 2002 ; Vasile and Csiki 2011 ; Vasile et al 2012 ), some or all of which probably represent derived paravian theropods.…”

Section: The Late Cretaceous Continental Vertebrate Faunas Of Europementioning

confidence: 99%

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Island life in the Cretaceous - faunal composition, biogeography, evolution, and extinction of land-living vertebrates on the Late Cretaceous European archipelago

Csiki-Sava¹,

Buffetaut²,

Ősi

et al. 2015

180

174

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The Late Cretaceous was a time of tremendous global change, as the final stages of the Age of Dinosaurs were shaped by climate and sea level fluctuations and witness to marked paleogeographic and faunal changes, before the end-Cretaceous bolide impact. The terrestrial fossil record of Late Cretaceous Europe is becoming increasingly better understood, based largely on intensive fieldwork over the past two decades, promising new insights into latest Cretaceous faunal evolution. We review the terrestrial Late Cretaceous record from Europe and discuss its importance for understanding the paleogeography, ecology, evolution, and extinction of land-dwelling vertebrates. We review the major Late Cretaceous faunas from Austria, Hungary, France, Spain, Portugal, and Romania, as well as more fragmentary records from elsewhere in Europe. We discuss the paleogeographic background and history of assembly of these faunas, and argue that they are comprised of an endemic ‘core’ supplemented with various immigration waves. These faunas lived on an island archipelago, and we describe how this insular setting led to ecological peculiarities such as low diversity, a preponderance of primitive taxa, and marked changes in morphology (particularly body size dwarfing). We conclude by discussing the importance of the European record in understanding the end-Cretaceous extinction and show that there is no clear evidence that dinosaurs or other groups were undergoing long-term declines in Europe prior to the bolide impact.

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Section: The Late Cretaceous Continental Vertebrate Faunas Of Europementioning

confidence: 99%

Section: The Late Cretaceous Continental Vertebrate Faunas Of Europementioning

confidence: 99%

Section: The Late Cretaceous Continental Vertebrate Faunas Of Europementioning

confidence: 99%

Section: The Late Cretaceous Continental Vertebrate Faunas Of Europementioning

confidence: 99%

Section: The Late Cretaceous Continental Vertebrate Faunas Of Europementioning

confidence: 99%

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Island life in the Cretaceous - faunal composition, biogeography, evolution, and extinction of land-living vertebrates on the Late Cretaceous European archipelago

Csiki-Sava¹,

Buffetaut²,

Ősi

et al. 2015

180

174

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Comparative crystallography suggests maniraptoran theropod affinities for latest Cretaceous European ‘geckoid’ eggshell

Choi

Moreno‐Azanza

Csiki-Sava

et al. 2020

Papers in Palaeontology

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Thin fossil eggshell from Upper Cretaceous deposits of Europe, characterized by nodular ornamentation similar to modern gekkotan eggshell, has mostly been interpreted as gekkotan (=‘geckoid’) in origin. However, in some cases, as for the oogenus Pseudogeckoolithus, a theropod affinity has also been suggested. The true affinity of these fossil ‘geckoid’ eggshells has remained controversial due to the absence of analytical methods for identifying genuine gecko eggshell in the fossil record. In this study, we apply electron backscatter diffraction (EBSD) analysis to latest Cretaceous European ‘geckoid’ (including Pseudogeckoolithus) eggshell, in comparison with modern gekkotan and theropod (avian) eggshell. We found that Pseudogeckoolithus has a definite theropod eggshell‐like crystallographic configuration, in clear contrast to that seen in modern ‘gecko eggshells’. Furthermore, the crystallography of the nodular ornamentation in Pseudogeckoolithus is similar to that seen in megapode eggshell, but different from that of gecko eggshell, despite superficial morphological similarity. The remarkable morphological similarities between Pseudogeckoolithus and modern gecko eggshells are thus convergent, and the ‘gekkotan affinity’ hypothesis can be dismissed for Pseudogeckoolithus. This study provides a template for differentiating true gekkotan from dinosaurian eggshells in the fossil record. The potential functional significance of eggshell ornamentation, lost in most modern birds, requires further study, and experimental zoological approach may shed light on this issue. Finally, the present results suggest caution about the dangers of using potentially homoplastic eggshell characters in eggshell parataxonomy.

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Upper Cretaceous European theropod palaeobiodiversity, palaeobiogeography and the intra‐Maastrichtian faunal turnover: new contributions from the Iberian fossil site of Laño

Isasmendi

Hernández

Currie

et al. 2022

Papers in Palaeontology

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A total of 227 theropod teeth have so far been recovered from the upper Campanian Laño site (northern Iberian Peninsula). The teeth were studied for their qualitative and quantitative features. From the theropod sample found at Laño, seven morphotypes attributed to five taxa are identified: a medium to large abelisaurid (Arcovenator sp.) and four small coelurosaurians (Dromaeosauridae indet., Paraves indet., cf. Paronychodon sp. and cf. Richardoestesia sp.) Together with the ground bird Gargantuavis and a possible ornithomimosaur, the theropod fauna of Laño might be composed of two medium–large‐sized non‐avian theropods, four small‐bodied non‐avian theropods and a large terrestrial bird. This makes the Laño site the richest and most diverse latest Cretaceous theropod site in Europe. Furthermore, the Laño site and the Upper Cretaceous localities of Europe that have yielded theropod remains suggest that the medium–large‐sized theropods were abelisaurids or indeterminate theropods. The small theropods are more abundant, diverse and represented by different dromaeosaurids, Paronychodon, Richardoestesia or related forms, troodontids and, probably, by other paravians. Of the birds, enantiornithines, gargantuaviids and ornithurines are also common in the European Upper Cretaceous sites. The theropod assemblage of Laño, together with the taxa of other Upper Cretaceous sites, supports the idea that several theropod dispersal events took place during the Cretaceous. This resulted in a mixture of European endemic, Asiamerican and Gondwanan forms. This study also supports the hypothesis that the intra‐Maastrichtian faunal turnover that occurred in the Ibero‐Armorican landmass seems to have had no apparent effect on theropods.

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Upper Cretaceous (Maastrichtian) Landvertebrate Diversity in Alba District (Romania)

Abstract: In Romania, Maastrichtian (Late Cretaceous)

Cited by 12 publications

References 4 publications

Island life in the Cretaceous - faunal composition, biogeography, evolution, and extinction of land-living vertebrates on the Late Cretaceous European archipelago

Island life in the Cretaceous - faunal composition, biogeography, evolution, and extinction of land-living vertebrates on the Late Cretaceous European archipelago

Comparative crystallography suggests maniraptoran theropod affinities for latest Cretaceous European ‘geckoid’ eggshell

Upper Cretaceous European theropod palaeobiodiversity, palaeobiogeography and the intra‐Maastrichtian faunal turnover: new contributions from the Iberian fossil site of Laño

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