About: Paramacellodidae

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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 , 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 an

Attributes	Values
rdfs:label	Paramacellodidae (it) Paramacellodidae (nl) Paramacellodidae (en)
rdfs:comment	I paramacellodidi (Paramacellodidae Estes, 1983) sono una famiglia di rettili estinti, appartenenti ai sauri. Vissero tra il Giurassico medio e il Cretaceo superiore (tra Bathoniano e Maastrichtiano, circa 167 - 66 milioni di anni fa) e i loro resti fossili sono stati ritrovati in Eurasia, Africa e America Settentrionale. (it) 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 , 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 an (en)
foaf:depiction
dcterms:subject	Middle Jurassic first appearances Late Jurassic reptiles Jurassic lizards Early Cretaceous reptiles Middle Jurassic reptiles Cretaceous lizards Early Cretaceous extinctions Prehistoric reptile families Lizard families
Wikipage page ID	47659767 (xsd:integer)
Wikipage revision ID	1121471226 (xsd:integer)
Link from a Wikipage to another Wikipage	Middle Jurassic first appearances Pseudosaurillus Scincomorpha Sciroseps Late Jurassic reptiles Becklesius Jurassic lizards Early Cretaceous reptiles Osteoderm Genera Gondwana Morrison Formation Middle Jurassic reptiles 1983 in paleontology Antlers Formation Lizard Cretaceous lizards Late Jurassic Laurasia Paramacellodus Family (biology) Tendaguru Formation Atokasaurus Early Cretaceous extinctions Prehistoric reptile families Lizard families Late Cretaceous Middle Jurassic Sharovisaurus Skink Evolutionary grade Evolutionary radiation Paraphyletic Saurillodon Phylogenetic relationship Spinytail lizard dbr:Saurillus dbr:Parmeosaurus dbr:Neokotus dbr:Naimanosaurus dbr:Changetisaurus dbr:Becklesisaurus dbr:Cordyoidea dbr:Mimobecklesisaurus
sameAs	Paramacellodidae Paramacellodidae Paramacellodidae Paramacellodidae Paramacellodidae
dbp:wikiPageUsesTemplate	dbt:Automatic_taxobox dbt:Portal dbt:Reflist dbt:Short_description dbt:Taxonbar dbt:Extinct dbt:Fossil_range dbt:Extinct_squamates
thumbnail	wiki-commons:Special:FilePath/Sciroseps.jpg?width=300
authority	Estes, 1983 (en)
fossil range	Middle Jurassic – Late Cretaceous, (en)
image caption	Dentary of Sciroseps (en)
subdivision	Atokasaurus? Becklesius Becklesisaurus Changetisaurus Mimobecklesisaurus Naimanosaurus Neokotus Paramacellodus Parmeosaurus Pseudosaurillus? Saurillodon Sciroseps *Sharovisaurus (en)
subdivision ranks	Genera
taxon	Paramacellodidae (en)
has abstract	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 , 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 tooth apices are lingually concave. The family was named in 1983 to include two well-known genera, Paramacellodus and Becklesius, from the Late Jurassic and Early Cretaceous of Europe. A third genus, Sharovisaurus, was named in 1984 from the Late Jurassic of Kazakhstan, and a fourth, , in 1985 from the Late Jurassic of China. Remains of Paramacellodus were later described from the Morrison Formation in Utah. Possible paramacellodid remains have also been found in Late Cretaceous deposits in Mongolia, as well as the Late Jurassic Tendaguru Formation in Tanzania, which would indicate that the family was also present in Gondwana. In 2020, this was confirmed with the discovery of the first paramacellodid from Brazil, Neokotus sanfranciscanus, from the Early Cretaceous Sanfranciscana Basin. Three other early scincomorphs—Pseudosaurillus, Saurillodon, and —have also commonly been referred to Paramacellodidae, although some recent phylogenetic studies find them to be non-paramacellodid scincomorphs. Collectively, paramacellodids and taxa formerly referred to Paramacellodidae may represent a paraphyletic grade of basal scincomorphs closely related to Scincoidea. In 2002, the newly named genus Atokasaurus from the Early Cretaceous Antlers Formation in Oklahoma was described as a "paramacellodid-grade" scincomorph to reflect this phylogenetic ambiguity. In the Late Cretaceous, paramacellodids are only known from the European Archipelago. (en) I paramacellodidi (Paramacellodidae Estes, 1983) sono una famiglia di rettili estinti, appartenenti ai sauri. Vissero tra il Giurassico medio e il Cretaceo superiore (tra Bathoniano e Maastrichtiano, circa 167 - 66 milioni di anni fa) e i loro resti fossili sono stati ritrovati in Eurasia, Africa e America Settentrionale. (it)
gold:hypernym	Family
prov:wasDerivedFrom	wikipedia-en:Paramacellodidae?oldid=1121471226&ns=0
page length (characters) of wiki page	6079 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Paramacellodidae
is Link from a Wikipage to another Wikipage of	Camarillas Formation Pseudosaurillus Scincomorpha Sciroseps 2020 in reptile paleontology 2021 in reptile paleontology 2013 in paleontology Angeac-Charente bonebed Lizard Dushihin Formation Europasaurus Forest Marble Formation Ostafrikasaurus

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