| 词条 | Lagerpetidae |
| 释义 |
| fossil_range = Late Triassic, {{fossilrange|236|211.9}} | image = Dromomeron BW.jpg | image_caption = Dromomeron gregorii | taxon = Lagerpetidae | authority = Arcucci, 1986 | subdivision_ranks = Genera | subdivision =
}} The Lagerpetidae ({{IPAc-en|ˈ|l|ɑː|dʒ|ˌ|ər|p|ɛ|t|ɪ|ˈ|d|eɪ|}}; originally Lagerpetonidae) is a family of basal dinosauromorphs. Members of the family are known from Late Triassic of Argentina, Arizona, New Mexico, and Texas.[1][2] DescriptionLagerpetids are generally rather small (length of one hind limb being {{convert|25|cm|in}}), with “very marked locomotor specializations”: final presacral and anteriorly oriented vertebrae, a sacral including two vertebrae, a closed acetabulum, and an up facing ilium".[3] They had a short and wide pubis, and had an ischium with extensive ventral lamina.[3] In relation to the genus Lagosuchus, the genera had shorter thigh bones than shins.[3] ClassificationThe lagerpetids were relatives of the dinosaurs, being a branch of the group Dinosauromorpha. The clade was named in a phylogenetic study by S. J. Nesbitt and colleagues in 2009.[1] A clade of lagerpetids was also recovered in the large phylogenetic analyses of early dinosaurs and other dinosauromorphs that were produced by Baron, Norman & Barrett (2017).[4] Cladogram simplified after Cabreira et al., 2016:[5]{{clade| style=font-size:85%; line-height:85%|label1=Eucrocopoda |1={{clade |1=Euparkeria |2={{clade |label1=Lagerpetidae |label2=Dinosauriformes |1={{clade |1=Lagerpeton |2={{clade |1=Ixalerpeton |2=Dromomeron}}}} |2={{clade |1=Marasuchus |2={{clade |1=Pseudolagosuchus |2=Lewisuchus |3=Saltopus |4=Dinosauria}}}}}}}}}} References1. ^1 The Paleobiology Database: Lagerpetonidae} {{Portal|Paleontology}}{{Ornithodira|D.}}{{Taxonbar|from=Q502020}}{{triassic-reptile-stub}}2. ^{{cite book|editor1-last=Sterling J. Nesbitt |editor2=Julia Brenda Desojo |editor3=Randall B. Irmis|title=Anatomy, Phylogeny and Palaeobiology of Early Archosaurs and Their Kin|date=2013|publisher=The Geological Society of London|page=164|url=https://books.google.com/?id=TN_KBP3vxg4C&pg=PA164&lpg=PA164&dq=Dromomeron+Ma#v=onepage&q=Dromomeron%20Ma&f=false|accessdate=29 March 2016|isbn=9781862393615 }} 3. ^1 2 {{cite journal |last=Arcucci |first=Andrea |year=1986 |title=New materials and reinterpretation of Lagerpeton chanarensis Romer (Thecodontia, Lagerpetonidae nov.) from the Middle Triassic of La Rioja, Argentina |page=3 |url=http://www.paleoglot.net/files/Arcucci_86.pdf |accessdate=2010-04-28}} 4. ^{{cite journal | last1 = Baron | first1 = M.G. | last2 = Norman | first2 = D.B. | last3 = Barrett | first3 = P.M. | year = 2017 | title = A new hypothesis of dinosaur relationships and early dinosaur evolution | url = http://eprints.esc.cam.ac.uk/3857/2/Supplementary%20Information%20_%20MGB%20_%20DBN%20_%20PMB.pdf| journal = Nature | volume = 543 | issue = 7646| pages = 501–506 | doi = 10.1038/nature21700 | pmid = 28332513 }} 5. ^{{cite journal | first1 = S.F. | last1 = Cabreira | first2 = A.W.A. | last2 = Kellner | first3 = S. | last3 = Dias-da-Silva | first4 = L.R. | last4 = da Silva | first5 = M. | last5 = Bronzati | first6 = J.C. | last6 = de Almeida Marsola | first7 = R.T. | last7 = Müller | first8 = J. | last8 = de Souza Bittencourt | first9 = B.J. | last9 = Batista | first10 = T. | last10 = Raugust | first11 = R. | last11 = Carrilho | first12 = A. | last12 = Brodt | first13 = M.C. | last13 = Langer | title = A Unique Late Triassic Dinosauromorph Assemblage Reveals Dinosaur Ancestral Anatomy and Diet | journal = Current Biology | doi = 10.1016/j.cub.2016.09.040 | url = http://www.cell.com/current-biology/fulltext/S0960-9822(16)31124-1 | date = 2016 | volume=26 | issue = 22 | pages=3090–3095 | pmid=27839975}} 4 : Triassic dinosauromorphs|Ladinian first appearances|Norian extinctions|Prehistoric reptile families |
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