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Pleurodonta
Pleurodonta (from Greek '' lateral teeth'', is an clade of lizards reference to the position of the teeth on the jaw) is one of the two subdivisions of Iguania, the other being Acrodonta ('' teeth on the top f the jaw'). Pleurodonta includes all families previously split from Iguanidae ''sensu lato'' ( Corytophanidae, Crotaphytidae, Hoplocercidae, Opluridae, Polychrotidae, etc.), whereas Acrodonta includes Agamidae and Chamaeleonidae. The name Pleurodonta was first used by paleontologist and herpetologist Edward Drinker Cope in 1864, although he used it in a different sense than it is used today. Because of this difference, the name Iguanoidea has been proposed as a replacement for Pleurodonta in phylogenetic nomenclature. ''Pleurodonta'' is also a synonym of gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and sl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iguanomorpha
Iguania is an infraorder of squamate reptiles that includes iguanas, chameleons, agamids, and New World lizards like anoles and phrynosomatids. Using morphological features as a guide to evolutionary relationships, the Iguania are believed to form the sister group to the remainder of the Squamata, which comprise nearly 11,000 named species, roughly 2000 of which are iguanians. However, molecular information has placed Iguania well within the Squamata as sister taxa to the Anguimorpha and closely related to snakes. The order has been under debate and revisions after being classified by Charles Lewis Camp in 1923 due to difficulties finding adequate synapomorphic morphological characteristics. Most iguanians are arboreal but there are several terrestrial groups. They usually have primitive fleshy, non-prehensile tongues, although the tongue is highly modified in chameleons. Today they are scattered occurring in Madagascar, the Fiji and Friendly Islands and Western Hemisphere. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iguania
Iguania is an infraorder of squamate reptiles that includes iguanas, chameleons, agamids, and New World lizards like anoles and phrynosomatids. Using morphological features as a guide to evolutionary relationships, the Iguania are believed to form the sister group to the remainder of the Squamata, which comprise nearly 11,000 named species, roughly 2000 of which are iguanians. However, molecular information has placed Iguania well within the Squamata as sister taxa to the Anguimorpha and closely related to snakes. The order has been under debate and revisions after being classified by Charles Lewis Camp in 1923 due to difficulties finding adequate synapomorphic morphological characteristics. Most iguanians are arboreal but there are several terrestrial groups. They usually have primitive fleshy, non-prehensile tongues, although the tongue is highly modified in chameleons. Today they are scattered occurring in Madagascar, the Fiji and Friendly Islands and Western Hemispher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crotaphytidae
The Crotaphytidae, or collared lizards, are a family (biology), family of desert-dwelling reptiles native to the Southwestern United States and northern Mexico. Alternatively they are recognized as a subfamily, Crotaphytinae, within the clade Pleurodonta. They are very fast-moving animals, with long limbs and tails; some species are capable of achieving bipedal locomotion, bipedal running at top speed. This species is carnivore, carnivorous, feeding mainly on insects and smaller lizards. The two Genus, genera contain 12 species. They may be related to the extinct Arretosauridae of Paleogene Asia due to similar jaw morphologies, though other studies classify the Arretosauridae in Acrodonta (lizard), Acrodonta with other Old World iguanians. Technical characters *Femoral pores present *Interparietal scale small (distinctly smaller than ear opening) *Never have an enlarged middorsal scale row or fringe *Never have a divided rostral scale *No bony spines or projecting ridges on their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleurodonte
''Pleurodonte'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Pleurodontinae of the family Pleurodontidae.MolluscaBase eds. (2021). MolluscaBase. Pleurodonte Fischer von Waldheim, 1807. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=870600 on 2021-02-17 The genus '' Dentellaria'' Schumacher, 1817 is considered to be a synonym of ''Pleurodonte'' by Vera (2008), but Schileyko (2006)Schileyko A. A. (2006). "Treatise on recent terrestrial pulmonate molluscs. Part 13. Helicidae, Pleurodontidae, Polygyridae, Ammonitellidae, Oreohelicidae, Thysanophoridae". ''Ruthenica'' Suppl. 2: 1765-1906. pages 1820. considered ''Dentellaria'' to be a separate genus. Distribution The distribution of the genus ''Pleurodonte'' includes: * Dominica (4 species)Robinson D. G., Hovestadt A., Fields A. & Breure A. S. H. (July 2009). "The land Mollusca of Dominica (Lesser Antilles), with n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acrodonta (lizard)
Acrodonta are a subclade of iguanian squamates consisting almost entirely of Old World taxa. Extant representation include the families Chamaeleonidae (chameleons) and Agamidae (dragon lizards), with at least over 500 species described. A fossil genus, '' Gueragama'', was found in Brazil making it the only known American representative of the group. The group is eponymously named from their acrodont dentition, whereby the teeth are consolidated with the summit of the alveolar ridge of the jaw without sockets. There are, however, other animals that have acrodont dentition such as tuataras. Systematics Usually acrodonts are divided into two families Chamaeleonidae and Agamidae, there are a few studies that suggest chameleons are nested within Agamidae. In order to maintain the familial status of Chamaeleonidae some authors suggested placing the clades Uromastycinae and Leiolepidinae in a third family Leiolepididae. However a majority of papers concerning acrodont phylogenetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leiocephalidae
Leiocephalidae, also known as the curlytail lizards or curly-tailed lizards, is a family of iguanian lizards restricted to the West Indies. One of the defining features of these lizards is that their tail often curls over. They were previously regarded as members of the subfamily Leiocephalinae within the family Tropiduridae. There are presently 30 known species, all in the genus ''Leiocephalus''. Taxonomy Phylogenetic evidence supports Leiocephalidae being the most basal extant member of the clade Pleurodonta, with it diverging from the rest of the suborder as early as the Late Cretaceous, about 91 million years ago. As with many other higher-order taxa endemic to the Caribbean, it likely colonized the Antilles from South America during the Cenozoic; however, its deep divergence time from other lizards supports a much more complex and less straightforward history in the West Indies compared to other modern taxa. Phylogenetic analysis on the genus supports some members of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iguanidae
The Iguanidae is a family of lizards composed of the iguanas, chuckwallas, and their prehistoric relatives, including the widespread green iguana. Taxonomy Iguanidae is thought to be the sister group to the Crotaphytidae, collared lizards (family Crotaphytidae). This family likely first appeared in Cenozoic, previously identified two Cretaceous genera (''Pristiguana'' and ''Pariguana'') are unlikely to belong to this family. The subfamily Iguaninae, which contains all modern genera, likely originated in the earliest Paleocene, about 62 million years ago. The most Basal (phylogenetics), basal extant genus, ''Desert iguana, Dipsosaurus,'' diverged from the rest of Iguaninae during the late Eocene, about 38 million years ago, with ''Brachylophus'' following a few million years later at about 35 million years ago, presumably after its dispersal event to the Pacific Ocean, Pacific. All other modern iguana genera formed in the Neogene period. A phylogenetic tree of Iguaninae is shown ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opluridae
The Opluridae, or Madagascan iguanas, are a family of moderately-sized lizards native to Madagascar and Grande Comore. There are eight species across two genera, with most of them being under '' Oplurus''. The other genus, '' Chalarodon'', is easily distinguishable from Oplurus as it contains species with a dorsal crest, particularly distinct in males, and has a smoother tail covered in similarly sized scales. Genus '' Oplurus'' has large segmented spiny scales, and no dorsal crest along the spine. Schlüter, Uwe (2013). "''Madagaskarleguane - Lebensweise, Pflege und Fortpflanzung''". ''KUS-Verlag, Rheinstetten''. . A Monograph on Opluridae (in German). The Opluridae, along with the banded iguanas and their kin (family Iguanidae) of Fiji, are the only extant members of the Pleurodonta that are found outside of the Americas. The Opluridae family includes terrestrial species that live amongst rocks and canyons, along with some that are arboreal, and two that prefer sandier habit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gobiguania
Gobiguania is an extinct clade of iguanian lizards from the Late Cretaceous. All known gobiguanians are endemic to the Gobi Desert of Mongolia. Gobiguania was given a phylogenetic definition by Jack Conrad and Mark Norell in 2007 as all taxa more closely related to '' Anchaurosaurus gilmorei'' than to ''Iguana iguana'' (the green iguana), '' Crotaphytus collaris'' (the common collared lizard), or ''Agama agama'' (the common agama). According to Conrad and Norell's phylogenetic analysis, Gobiguania includes ''Anchaurosaurus'' as well as several other Late Cretaceous lizards such as '' Ctenomastax'', '' Temujinia'', '' Saichangurvel'', and '' Zapsosaurus''. A phylogenetic analysis published in 2012 indicated that three other lizard genera — '' Igua'', '' Isodontosaurus'', and '' Polrussia'', all from Mongolia and all from the Late Cretaceous — are also gobiguanians. Below is a cladogram A cladogram (from Greek language, Greek ''clados'' "branch" and ''gramma'' "character") is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leiosauridae
Leiosauridae is a Family (biology), family of iguanian lizards containing six genera and 34 species. The family is Endemism, endemic to Central America and South America. Taxonomy A 2022 phylogenetic study found the Leiosauridae to be the sister taxa to the Opluridae, a unique family of iguanians Endemism, endemic to Madagascar, and one of only two Pleurodonta, pleurodont lineages found outside the Americas (the other being the genus ''Brachylophus''). This called into question the previous hypothesis of Opluridae being the last members of an ancient lineage of Gondwanan iguanians, as the study found that the Leiosauridae and Opluridae only diverged during the Paleocene, about 60 million years ago. Opluridae are now thought to have colonized Madagascar via oceanic dispersal from South America, either directly or indirectly. Genera The family Leiosauridae contains the following Genus, genera:"Leiosauridae". The Reptile Database. www.reptile-database.org. References Further r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corytophanidae
Corytophanidae is a family of iguanian lizards, also called casquehead lizards or helmeted lizards, endemic to the New World. Nine species of casquehead lizards from three genera are recognized. Geographic range Corytophanids are found from Mexico, through Central America, and as far south as Ecuador. Certain species are now extant in South Florida and are considered invasive. Description The casquehead lizards are moderately sized lizards, with laterally compressed bodies, and typically have well-developed head crests in the shape of a casque helmet. This crest is a sexually dimorphic characteristic in males of ''Basiliscus'', but is present in both sexes of ''Corytophanes'' and ''Laemanctus''.Pough et al. (2003). In past years there has been evidence of corytophanids in the Eocene of North America. The greatest percentage of omnivorous species (> 10% plant diet), over 30% in each, and the highest mean percentage of plant matter in the diet are corytophanids. Behavior In ''C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
