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Scincomorph
Scincomorpha is an infraorder and clade of lizards including Skink, skinks (Scincidae) and their close relatives. These include the living families Cordylidae (girdled lizards), Gerrhosauridae (plated lizards), and Xantusiidae (night lizards), as well as many extinct taxa. Other roughly equivalent terms include the suborder Scinciformata, or the Superfamily (taxonomy), superfamily Scincoidea, though different authors use these terms in a broader or more restricted usage relative to true skinks. They first appear in the fossil record about 170 million years ago, during the Jurassic period.Evans, S.E. and Jones, M.E.H. (2010). "The Origin, Early History and Diversification of Lepidosauromorph Reptiles," pp. 27-44 in Bandyopadhyay, S. (ed.), ''New Aspects of Mesozoic Biodiversity'', 27 Lecture Notes in Earth Sciences 132./ref> The phylogeny below follows that of Alifanov in 2016. Image:Polyglyphanadon sternbergi - IMG 0694.jpg, ''Polyglyphanodon, Polyglyphanodon sternbergi'' File: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paramacellodidae
Paramacellodidae is an extinct family of lizards that first appeared in the Middle Jurassic around 170 million years ago (Ma) and became extinct at the end of the Cretaceous around 66 Ma. It was one of the earliest groups of lizards to have undergone an evolutionary radiation, with members found across the supercontinent Laurasia. The phylogenetic relationships and constituent species of Paramacellodidae are uncertain. Many studies regard them to be scincomorphs, a large group that includes skinks and their closest extinct relatives, and possibly also to Cordyoidea, a group that includes spinytail lizards and relatives. Like modern skinks, paramacelloidids had rectangular bony plates called osteoderms covering most of their bodies, including their backs, undersides, and tails. They also had short and robust limbs. Paramacellodids are distinguished from other lizards by the combination two traits in their dentition, the teeth are labiolingually expanded at their bases, and the to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sciroseps
''Sciroseps'' is an extinct genus of scincomorph squamates known from a partial left mandible, UA-2016-13-294, from the Early Cretaceous ( Albian) Holly Creek Formation of the Trinity Group The Trinity Group is a group (sequence of rock strata) in the Lower Cretaceous lithostratigraphy of Texas, Arkansas, Mississippi, Louisiana and Oklahoma. It is named for the Trinity River of Texas. A stratigraphic column at the Mount Bonnell Fau ... in Arkansas, USA. The type and only species is ''Sciroseps pawhuskai''. Its generic name is derived from Greek ''"σκυρος: skiros" (gypsum),'' and ''"σεπος: sepos" (lizard or snake);'' and its species name refers to historic Osage chief Pawhuska. ''Sciroseps'' is thought to be related to a clade containing the extinct Paramacellodidae and the extant Cordylidae. Suarez ''et al.'' list the defining autapomorphies for this taxon as a more gracile and convex dentary, less robust and shorter subdental laminae, dental coronae lacking li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skink
Skinks are lizards belonging to the family Scincidae, a family in the infraorder Scincomorpha. With more than 1,500 described species across 100 different taxonomic genera, the family Scincidae is one of the most diverse families of lizards. Skinks are characterized by their smaller legs in comparison to typical lizards and are found in different habitats except arctic and subarctic regions. Description Skinks look like lizards of the family Lacertidae (sometimes called ''true lizards''), but most species of skinks have no pronounced neck and relatively small legs. Several genera (e.g., '' Typhlosaurus'') have no limbs at all. This is not true for all skinks, however, as some species such as the red-eyed crocodile skink have a head that is very distinguished from the body. These lizards also have legs that are relatively small proportional to their body size. Skinks' skulls are covered by substantial bony scales, usually matching up in shape and size, while overlapping. Other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyglyphanodon
''Polyglyphanodon'' is an extinct genus of Polyglyphanodontid lizard containing the species ''P. sternbergi'' from the Maastrichtian aged North Horn Formation of Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it .... The species is known from several mostly complete and partial skeletons. It is distinguished by its transversely orientated interlocking teeth, which suggest a herbivorous diet References Prehistoric reptile genera Cretaceous reptiles of North America Paleontology in Utah Taxa named by Charles W. Gilmore Fossil taxa described in 1940 {{paleo-lizard-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retinosaurus
''Retinosaurus'' (meaning "amber lizard") is an extinct genus of scincomorph lizard from the Early Cretaceous of Myanmar. The genus contains a single species, ''Retinosaurus hkamtiensis'', known from a specimen preserved in amber. Discovery and naming The holotype specimen, GRS 29689, was legally obtained from a Myanmar gem dealer in 2019. It was subsequently announced in a preprint in October 2021, and validly described as a new genus and species of lizard by Čerňanský ''et al.'' in January 2022. The fossil was discovered in the Hkamti amber site of Myanmar, which dates to the early Albian, approximately 110 million years ago. The holotype, which represents a juvenile individual, includes a well-preserved articulated skull, partial postcrania, and skin impressions. In addition to the lizard fossil material, the amber also contains several coleopterans. The generic name, "''Retinosaurus''", is derived from the Greek words "retine", referring to liquid resins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Globauridae
Globauridae is a family of extinct scincomorph lizards that first appeared in the Late Jurassic of England and persisting until the Late Cretaceous of Mongolia. The group is distinguished by having a diploglossopalatinar palate anatomy, lacking osteoderms, having conical two- or three-cusped teeth, and a unique postorbital- parietal contact. The type genus '' Globaura'' was originally classified within the now- polyphyletic group Lacertoidea, before being reclassified within its own family within Ardeosauroidea. However, '' Meyasaurus'' has also been found to be closer to Barbatteiidae Barbatteiidae is an extinct family of lizards, endemic to the paleoisland Hațeg Island in the Tethys Ocean during the final stages of the Cretaceous, In what is now Romania. It contains two monotypic genera, '' Barbatteius'' and '' Oardasaurus'' .... References {{Reflist Scincomorpha Jurassic lizards Cretaceous lizards Prehistoric reptile families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carusiidae
''Carusia'' is an extinct genus of lizard Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia al ...s from the Late Cretaceous of Mongolia. It is a close relative of the family Xenosauridae, which includes living knob-scaled lizards. Fossils of the type species, type and only species ''Carusia intermedia'' come from the late-Campanian age Barun Goyot Formation and have been found in the Flaming Cliffs, Ukhaa Tolgod, and Kheerman Tsav fossil localities. ''Carusia'' was first described in 1985 under the name ''Carolina intermedia'', but since the name ''Carolina'' was preoccupied by a genus of Scarabaeidae, scarab beetles that had been named in 1880, it was renamed ''Carusia intermedia''. ''Carusia'' had initially been known from fragmentary skull material, complicating efforts to determine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, the equivalent Latin term ''cladus'' (plural ''cladi'') is often used in taxonomical literature. The common ancestor may be an individual, a population, or a species (extinct or extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed monophyletic (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming taxa that are not clades; that is, taxa that are not monophyletic. Some of the relationships between org ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lizard
Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia although some lizards are more closely related to these two excluded groups than they are to other lizards. Lizards range in size from chameleons and geckos a few centimeters long to the 3-meter-long Komodo dragon. Most lizards are quadrupedal, running with a strong side-to-side motion. Some lineages (known as " legless lizards"), have secondarily lost their legs, and have long snake-like bodies. Some such as the forest-dwelling '' Draco'' lizards are able to glide. They are often territorial, the males fighting off other males and signalling, often with bright colours, to attract mates and to intimidate rivals. Lizards are mainly carnivorous, often being sit-and-wait predators; many smaller species eat insects, while the Komodo eats mamma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The Jurassic constitutes the middle period of the Mesozoic, Mesozoic Era and is named after the Jura Mountains, where limestone strata from the period were first identified. The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic magmatic province, Central Atlantic Magmatic Province. The beginning of the Toarcian Stage started around 183 million years ago and is marked by an extinction event associated with widespread Anoxic event, oceanic anoxia, ocean acidification, and elevated temperatures likely caused by the eruption of the Karoo-Ferrar, Karoo-Ferrar large igneous provinces. The end of the Jurassic, however, has no clear boundary with the Cretaceous and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suborder
Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. For some groups of organisms, their orders may follow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superfamily (taxonomy)
Superfamily may refer to: *Protein superfamily A protein superfamily is the largest grouping (clade) of proteins for which common ancestry can be inferred (see homology). Usually this common ancestry is inferred from structural alignment and mechanistic similarity, even if no sequence similarit ... ** Superfamily database * Superfamily (taxonomy), a taxonomic rank * Superfamily (linguistics), also known as macrofamily * Font superfamily, a large typographic family * Superfamily (band), a Norwegian pop band * "Super Family", a group of comic characters {{Disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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