Weitere Lacertilier, Insbesondere Iguanidae aus dem Eozän des Geiseltales

Kuhn, Oskar

doi:10.1007/bf03160444

Cited by 12 publications

(11 citation statements)

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“…In some cases, and because the European record is reasonably well known, comparisons have been focused on European taxa, and identifications are thus subject to geographic restrictions. Iguania Cuvier, 1817Iguanidae Gray, 1827 Three pleurodont iguanian genera, Carduciguana (Augé, 1987;MP16-19, France), Geiseltaliellus (Kuhn, 1944;MP7, Belgium, Portugal;Augé, 2005;Augé and Pouit, 2012;MP8-10, MP16-19, MP28, France;Rossmann, 2000a;MP11-12, Germany) and Pseudolacerta (De Stefano, 1903, MP16-19, France) have been reported from the European Paleogene. All of these taxa have tricuspid teeth, a characteristic shared by several of the Sossís specimens.…”

Section: Methodsmentioning

confidence: 99%

“…Genus Geiseltaliellus Kuhn, 1944 Geiseltaliellus pradiguensis Augé, 2007 Material: IPS 56093 (Figure 2.1), partial right dentary with four preserved teeth; IPS 56094, partial right maxilla with one broken and three complete teeth; IPS 59521, fragment of ?dentary with five teeth (Figure 2.2); less certainly IPS 59523, five fragments of ?dentaries with teeth. Description: The identified elements have exceptionally tall pleurodont tricuspid teeth, projecting only slightly above the parapet of the dentary.…”

Section: Methodsmentioning

confidence: 99%

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Lizards and amphisbaenians (Reptilia, Squamata) from the late Eocene of Sossís (Catalonia, Spain)

Bolet

Evans

2013

Palaeontologia Electronica

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A new diverse late Eocene lizard and amphisbaenian assemblage from the classical mammal locality of Sossís (Catalonia, Spain) is described. It represents the first Paleogene lizard assemblage from Spain and the first late Eocene lizard locality from the Iberian Peninsula. The family-level composition of the assemblage replicates that of other contemporaneous European localities, with the presence of iguanians, geckos, lacertids, scincids, cordyliforms, amphisbaenians, anguines, and glyptosaurines. Many of these families still occur in Catalonia, but the presence of thermophilic taxa like iguanians and cordyliforms are indicative of warmer conditions during the Eocene. The closest faunal match is with the contemporaneous French localities of the Phosphorites du Quercy. Sossís and other newly recovered Paleogene Spanish squamate assemblages have the potential to contribute to an understanding of patterns of faunal interchange between different Paleogene bioprovinces, complementing existing data on mammals.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Lizards and amphisbaenians (Reptilia, Squamata) from the late Eocene of Sossís (Catalonia, Spain)

Bolet

Evans

2013

Palaeontologia Electronica

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“…Basin, Àger Sub-basin) SQUAMATA Oppel, 1811 IGUANIA Cuvier, 1817 IGUANIDAE Gray, 1827 Genus GEISELTALIELLUS Kuhn, 1944 Geiseltaliellus sp. Figure 1.2); IPS 83558, two partial right and two partial left dentaries, one partial maxilla; less certainly IPS 49745, fragment of ?maxilla with two teeth; IPS 83553, partial right dentary.…”

Section: Masia De L'hereuet (Mp7+8 Southern Pyreneanmentioning

confidence: 99%

First early Eocene lizards from Spain and a study of the compositional changes between late Mesozoic and early Cenozoic Iberian lizard assemblages

Bolet

2017

Palaeontologia Electronica

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Lizard and amphisbaenian fossil material is described for the first time from early Eocene localities in Spain, more specifically from Catalonia (north-eastern Iberian Peninsula). Material is fragmentary and scarce, but diagnostic enough to provide a first approach to the composition of lizard assemblages. The following taxa are recorded: Geiseltaliellus and a second indeterminate pleurodont iguanid; an agamid similar to "Tinosaurus"; an indeterminate gekkotan; a scincoid, possibly scincid lizard; a lacertid similar to Dormaalisaurus; an indeterminate amphisbaenian; a glyptosaurin glyptosaurine (cf. Placosaurus); an indeterminate anguine; and, finally, an indeterminate "necrosaur." The studied localities range from the MP8+9 to the MP10, and thus complement the only previously known lizard locality of the Iberian early Eocene, the Portuguese locality of Silveirinha, which corresponds to the MP7. An analysis of the composition of these new assemblages suggests a great amount of homogeneity through the different levels of the early Eocene, and also between Iberian and contemporaneous assemblages from the rest of Europe. The lack of an Iberian Paleocene record for lizards strengthens the importance of the study of early Eocene assemblages because these are the only ones available for comparison with Cretaceous associations, providing critical information on the changes in composition between Mesozoic and early Cenozoic lizard faunas related to the K/Pg extinction event.

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“…If the generic referral of the species is correct, this feature provides further support for the alliance of Suzanniwana with Corytophaninae (see also Smith 2009 a ). The middle Eocene iguanid Geiseltaliellus Kuhn, 1944 from Europe is also closely related to Corytophaninae (Estes 1983; Smith 2009 b ), and it is possible that a medial buttress for the jugal is at least variably present in that clade as well.…”

mentioning

confidence: 99%

The long‐term history of dispersal among lizards in the early Eocene: new evidence from a microvertebrate assemblage in the Bighorn Basin of Wyoming, USA

Smith¹

2011

Palaeontology

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Early Eocene mammal faunas of North America were transformed by intercontinental dispersal at the Paleocene-Eocene boundary, but lizard faunas from the earliest Eocene of the same area were dominated by immigrants from within the continent. A new lizard assemblage from the middle early Eocene of Wyoming sheds light on the longer-term history of dispersal in relation to climate change. The assemblage consists of three iguanid species (including two new species possibly closely related to living Anolis), Scincoideus, 'Palaeoxantusia', four anguids, two species of an undescribed new anguimorph clade, Provaranosaurus and a varanoid (cf. Saniwa). Most North American glyptosaurin glyptosaurines are now referred to Glyptosaurus, and Glyptosaurus hillsi is given a new diagnosis. Scincoideus is otherwise known only from the mid-Paleocene of Belgium, and the specimens described here are the first to document intercontinental dispersal to North America among lizards in the early Eocene. Like in mammals, some immigrant lizard lineages first appearing in the Bighorn Basin in the earliest Eocene persisted in the area long after the Paleocene-Eocene thermal maximum, but other immigrants appear to have been restricted to the PaleoceneEocene thermal maximum.

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Weitere Lacertilier, Insbesondere Iguanidae aus dem Eozän des Geiseltales

Cited by 12 publications

References 0 publications

Lizards and amphisbaenians (Reptilia, Squamata) from the late Eocene of Sossís (Catalonia, Spain)

Lizards and amphisbaenians (Reptilia, Squamata) from the late Eocene of Sossís (Catalonia, Spain)

First early Eocene lizards from Spain and a study of the compositional changes between late Mesozoic and early Cenozoic Iberian lizard assemblages

The long‐term history of dispersal among lizards in the early Eocene: new evidence from a microvertebrate assemblage in the Bighorn Basin of Wyoming, USA

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