The Status of the Middle Eocene Geiseltal Limbless Anguid Lizards

Meszoely, Charles A. M.; Haubold, Hartmut

doi:10.2307/1442401

Cited by 12 publications

(17 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This scenario predicts that North African, European, and West Asian anguines would not necessarily form a monophyletic group but that North American anguines should be a monophyletic group. This scenario is compatible with both our phylogenetic hypothesis and the hypothesis that Eocene European fossils of the Anguinae are affiliated with either the modern North African lineage or the European and West Asian lineage (Meszoely and Haubold, 1975). The European fossil anguines of the late Oligocene-Miocene are assigned to the Anguis-Ophisaurus apodus clade (Gauthier, 1982).…”

Section: Phylogeny and Biogeography Of Extant Forms And The Fossil Resupporting

confidence: 84%

“…Fossils in Europe from two later periods may be related to extant forms within the Anguinae. The earliest fossils from the middle Eocene (40-50 MYBP) are either grouped with the modern Old World anguines (Meszoely and Haubold, 1975) or considered the sister lineage to all modern anguines (Gauthier, 1982). If these fossils are grouped with a modern Old World anguine lineage (Fig.…”

Section: Phylogeny and Biogeography Of Extant Forms And The Fossil Rementioning

confidence: 99%

See 1 more Smart Citation

Molecular Phylogenetics, tRNA Evolution, and Historical Biogeography in Anguid Lizards and Related Taxonomic Families

Macey

Schulte

Larson

et al. 1999

Molecular Phylogenetics and Evolution

184

142

View full text Add to dashboard Cite

Section: Phylogeny and Biogeography Of Extant Forms And The Fossil Resupporting

confidence: 84%

Section: Phylogeny and Biogeography Of Extant Forms And The Fossil Rementioning

confidence: 99%

Molecular Phylogenetics, tRNA Evolution, and Historical Biogeography in Anguid Lizards and Related Taxonomic Families

Macey

Schulte

Larson

et al. 1999

Molecular Phylogenetics and Evolution

184

142

View full text Add to dashboard Cite

“…Absence of parietal notch. The parietal notch is a notch located immediately behind the posterior margin of the parietal table and between the posterior sections of the juxtaotic crests which reach posteriorly the anteromedial margins of the supratemporal processes (Meszoely & Haubold 1975). Such a notch is well developed in Miocene ophisaurs (Klembara 1979(Klembara , 1981 and Recent ophisaurs (e.g.…”

Section: Derivation Of Namementioning

confidence: 99%

Anguimorph lizards (Squamata, Anguimorpha) from the Middle and Late Eocene of the Hampshire Basin of southern England

Klembara

Green

2010

Journal of Systematic Palaeontology

View full text Add to dashboard Cite

The Hampshire Basin in southern England is the only sequence virtually spanning the Eocene-Oligocene boundary in western Europe. It has provided an opportunity to observe changes in populations across the Grande Coupure event, as an overturn in the squamate assemblage of continental Europe has also been noted. Five Tertiary formations have yielded lizard material: Creechbarrow Limestone, Barton Clay, Headon Hill, Bembridge Limestone and Bouldnor Formation. These formations span the period from the late Middle Eocene to the earliest Oligocene. Localities in the Hampshire Basin represent a depositional environment with an increasing tendency towards lacustrine and riparian influences in later horizons. The anguimorph fauna includes one new anguine, Headonhillia parva gen. et sp. nov., diagnosed by: (1) small size, (2) large parietal area levis, and (3) short parietal crista postfovealis. Another anguine, Ophisaurus sp., is identified on the basis of the morphology of the parietal. Three further morphotypes of anguines have been distinguished based on dentary, vertebrae and osteoderm specimens. Two types of indeterminate Anguidae are distinguished on the basis of maxillae and dentaries and three morphotypes of indeterminate Anguidae on the basis of vertebrae. Glyptosaurines have been identified in three members on the basis of osteoderms. 'Necrosaurs' have also been identified from the Hampshire Basin: two types, distinguished on the basis of dentary material and osteoderms, are identified as indeterminate 'necrosaurs'. One type of indeterminate Varanoidea is distinguished on the basis of dentaries. The presence of anguids in the Hampshire Basin is well documented, and they appear to form a consistently diverse assemblage throughout the sequence. Anguine osteoderms are present in both pre-and post-Grande Coupure material. Pre-Grande Coupure vertebrae and osteoderms are similar in size to those of adult Recent anguine Pseudopus apodus, although many of the Hampshire Basin anguines, including Headonhillia parva, represent the smallest anguines known to date.

show abstract

“…Teeth of Ophisauriscus are also recurved and sharply pointed but their bases seem less expanded than those of D. roqueprunensis . According to Meszoely & Haubold (1975) tooth count in Ophisauriscus is low (11 dentary teeth) but, apparently, they did not include the unoccupied tooth positions in their count. Furthermore, Sullivan et al.…”

mentioning

confidence: 95%

“…However, the new specimens from Boutersem allow critical comparison between Dopasia roqueprunensis and Ophisauriscus quadrupes . According to Meszoely & Haubold (1975) and Sullivan et al. (1999), the posterior border of the parietal table of Ophisauriscus lacks the medial parietal notch that is present in a number of Recent Anguinae and other anguids (see also Klembara, 1981).…”

mentioning

confidence: 99%

An assemblage of early Oligocene lizards (Squamata) from the locality of Boutersem (Belgium), with comments on the Eocene-Oligocene transition

Augé

Smith

2009

Zoological Journal of the Linnean Society

View full text Add to dashboard Cite

A diverse, new lizard assemblage from the early Oligocene of Belgium is described. The Boutersem railway local fauna is the most species-rich lizard assemblage yet reported from the European early Oligocene. Four lizard taxa are present: Lacertidae, Anguidae, Scincoidea and Platynota. One new species is described, Folisaurus boutersemensis sp. nov. This fauna provides new insight into the profound turnover that took place during the Eocene/Oligocene boundary in Europe. The new fauna confirms a marked decrease in diversity across the Eocene/Oligocene boundary. Two groups encountered in the European late Eocene became extinct (Iguanidae*, Glyptosaurinae). Estimates of species-level extinctions range up to 80%. These estimates include members of virtually all the families present in the late Eocene. The relative importance of climate change and biotic interactions in controlling this pattern is discussed, and negative interactions between lizards and new carnivorous mammals are favoured.

show abstract

The Status of the Middle Eocene Geiseltal Limbless Anguid Lizards

Cited by 12 publications

References 3 publications

Molecular Phylogenetics, tRNA Evolution, and Historical Biogeography in Anguid Lizards and Related Taxonomic Families

Molecular Phylogenetics, tRNA Evolution, and Historical Biogeography in Anguid Lizards and Related Taxonomic Families

Anguimorph lizards (Squamata, Anguimorpha) from the Middle and Late Eocene of the Hampshire Basin of southern England

An assemblage of early Oligocene lizards (Squamata) from the locality of Boutersem (Belgium), with comments on the Eocene-Oligocene transition

Contact Info

Product

Resources

About