Diplodocus
Diplodocus is an extinct genus of diplodocid sauropod dinosaurs known from the Late Jurassic of North America and possibly Europe. The first fossils of Diplodocus were discovered in 1877 by S. W. Williston. The generic name, coined by Othniel Charles Marsh in 1878, is a Neo-Latin term derived from Greek διπλός (diplos) "double" and δοκός (dokos) "beam", in reference to the double-beamed chevron bones located in the underside of the tail, which were then considered unique.

ScottRobertAnselmo · CC BY-SA 3.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- DiplodocinaePBDB
- Diet
- herbivorePBDB, for Sauropoda
- Life habit
- ground dwelling, gregariousPBDB, for Sauropoda
- Motility
- actively mobilePBDB, for Sauropoda
- Environment
- terrestrialPBDB, for Sauropoda
- Length
- 32 mWikidata
- Mass
- 113 tonneWikidata
Time the record covers
At least 3 million years on record.
The record covers at least 152.21 Mya to 149.2 Mya. No occurrence read is dated outside 157.9 Mya to 143.1 Mya.
66 occurrences of Diplodocus on record, most of them in the Late Jurassic. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
66 occurrences- Late Jurassic100%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
1 formation
Loading coastlines…
The named rock units Diplodocus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Diplodocus and its relatives
Late JurassicWhere Diplodocus and its relatives were recorded in the Late Jurassic.
Found in the same rock
171 taxa- Camarasaurus34 sites
- Stegosaurus26 sites
- Allosaurus23 sites
- Apatosaurus19 sites
- Camptosaurus16 sites
- Glyptops11 sites
- Brachiosaurus10 sites
- Theropoda10 sites
- Allosaurus fragilis9 sites
- Goniopholis9 sites
- Barosaurus8 sites
- Crocodylia8 sites
- Ornithopoda8 sites
- Ceratosaurus7 sites
- Mammalia7 sites
- Opisthias7 sites
- Sauropoda7 sites
- Multituberculata6 sites
- Nanosaurus agilis6 sites
- Allosaurus jimmadseni5 sites
- Camarasaurus grandis5 sites
- Diplodocidae5 sites
- Dryosaurus altus5 sites
- Testudines5 sites
The Paleobiology Database records 64 sites for Diplodocus, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
29 references- Paleoecological analysis of the vertebrate fauna of the Morrison Formation (Upper Jurassic), Rocky Mountain region, U.S.A.14
- Biostratigraphy of dinosaurs in the Upper Jurassic Morrison Formation of the Western Interior, U.S.A.10
- Connely, 20025
- Marsh's Dinosaurs: The Collections from Como Bluff5
- Vertebrate biostratigraphy of the Morrison Formation near Cañon City, Colorado3
- Annotated catalogue of the dinosaurs (Reptilia, Archosauria) in the collections of the Carnegie Museum of Natural History3
- A specimen-level phylogenetic analysis and taxonomic revision of Diplodocidae (Dinosauria, Sauropoda)2
- A new specimen of Torvoaurus tanneri originally collected by Elmer Riggs2
- The Howe Ranch Dinosaurs: 10 Years of Dinosaur Digging in Wyoming2
- Taphonomic analysis of a dinosaur feeding site using Geographic Information Systems (GIS), Morrison Formation, southern Bighorn Basin, Wyoming, USA1
- New juvenile sauropod material from western Colorado, and the record of juvenile sauropods from the Upper Jurassic Morrison Formation1
- Historical update: paleontological excavation in the Como Region1
Each of the 66 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. 17 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content3
Picture of Diplodocus
- Source
- Wikipedia/Commons
- Credit
- ScottRobertAnselmo
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
Structured light scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Diplodocus longus · dmnh:epv:462-ZZ
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial
- Commercial use
- the licence does not allow it
This entry was cached before the site began recording what Smithsonian Open Access did, so a search that failed cannot be told from one that found nothing.
The description on this site
- Source
- Wikipedia, “Diplodocus”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
Everything alive alongside itDiplodocinae through timeFormations of the Late JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Marsh 1878