Editing Diplodocidae (section)

{{Short description|Extinct family of dinosaurs}}
{{Automatic taxobox
| name = Diplodocids
| fossil_range = [[Middle Jurassic]]-[[Early Cretaceous]], {{Fossil range|170|136.4}}
| image = Louisae.jpg
| image_caption = Mounted ''A. louisae'' (specimen CM 3018), [[Carnegie Museum of Natural History]]
| image2 = CM Diplodocus.jpg
| image2_caption = Mounted ''D. carnegii'' type specimen, [[Carnegie Museum of Natural History]]
| taxon = Diplodocidae
| authority = [[Othniel Charles Marsh|Marsh]], 1884
| type_genus = {{extinct}}''[[Diplodocus]]''
| type_genus_authority = Marsh, 1878
| subdivision_ranks = Subgroups<ref name="Tschopp2015"/>
| subdivision =
*{{extinct}}''[[Amphicoelias]]''
*{{extinct}}''[[Atlantosaurus]]''?
*{{extinct}}''[[Saurophaganax]]''?<ref>{{Cite journal |last1=Danison |first1=Andrew |last2=Wedel |first2=Mathew |last3=Barta |first3=Daniel |last4=Woodward |first4=Holly |last5=Flora |first5=Holley |last6=Lee |first6=Andrew |last7=Snively |first7=Eric |date=2024-12-21 |title=Chimerism in specimens referred to ''Saurophaganax maximus'' reveals a new species of ''Allosaurus'' (Dinosauria, Theropoda) |url=https://journals.library.ualberta.ca/vamp/index.php/VAMP/article/view/29404 |journal=Vertebrate Anatomy Morphology Palaeontology |language=en |volume=12 |doi=10.18435/vamp29404 |issn=2292-1389|doi-access=free }}</ref>
*{{extinct}}[[Apatosaurinae]]
*{{extinct}}[[Diplodocinae]]
| synonyms =
* Atlantosauridae <br /><small>Marsh, 1877</small>
* Amphicoeliidae <br /><small>[[Edward Drinker Cope|Cope]], 1878</small>
* Apatosauridae <br /><small>Huene, 1927</small>
* Brontosauridae <br /><small>Jaekel, 1911</small>
}}

'''Diplodocids''', or members of the family '''Diplodocidae''' ("double beams"), are a group of [[sauropod]] [[dinosaur]]s. The family includes some of the longest creatures ever to walk the Earth, including ''[[Diplodocus]]'' and ''[[Supersaurus]]'', some of which may have reached lengths of up to {{convert|42|m|ft}}.<ref name="Lovelace2007"/><ref name="Tschopp2015"/>