Alectrosaurus

Alectrosaurus is a genus of tyrannosauroid theropod dinosaur that lived in Asia during the Late Cretaceous period, about some 96 million years ago in what is now the Iren Dabasu Formation.

Alectrosaurus

PaleoNeolitic · CC BY-SA 4.0 · 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
TyrannosauroideaPBDB
Diet
carnivorePBDB, for Coelurosauria
Life habit
ground dwelling, solitaryPBDB, for Theropoda
Motility
actively mobilePBDB, for Theropoda
Environment
terrestrialPBDB, for Theropoda
Length
5 mWikidata

Time the record covers

At least 10 million years on record.

The record covers at least 93.9 Mya to 83.6 Mya. No occurrence read is dated outside 100.5 Mya to 72.2 Mya.

Early Cretaceous — about 0 of 19 occurrencesLate Cretaceous — about 19 of 19 occurrencesLate Cretaceous101–100 Mya — about 0.2 occurrences100–99 Mya — about 0.4 occurrences99–98 Mya — about 0.4 occurrences98–97 Mya — about 0.4 occurrences97–96 Mya — about 0.4 occurrences96–95 Mya — about 0.4 occurrences95–94 Mya — about 0.4 occurrences94–93 Mya — about 2 occurrences93–92 Mya — about 3 occurrences92–91 Mya — about 3 occurrences91–90 Mya — about 3 occurrences90–89 Mya — about 1 occurrence89–88 Mya — about 0.3 occurrences88–87 Mya — about 0.3 occurrences87–86 Mya — about 0.3 occurrences86–85 Mya — about 0.4 occurrences85–84 Mya — about 0.7 occurrences84–83 Mya — about 0.6 occurrences83–82 Mya — about 0.2 occurrences82–81 Mya — about 0.2 occurrences81–80 Mya — about 0.2 occurrences80–79 Mya — about 0.2 occurrences79–79 Mya — about 0.2 occurrences79–78 Mya — about 0.2 occurrences78–77 Mya — about 0.2 occurrences77–76 Mya — about 0.2 occurrences76–75 Mya — about 0.2 occurrences75–74 Mya — about 0.2 occurrences74–73 Mya — about 0.2 occurrences73–72 Mya — about 0.1 occurrences93.9 Mya83.6 Mya101.1 Mya71.6 Mya

19 occurrences of Alectrosaurus on record, most of them in the Late Cretaceous. 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

19 occurrences

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

8 formations

Bissekty — 42.12°N, 62.66°EBissekty — 40.70°N, 72.60°EIren Dabasu — 43.73°N, 112.02°EKhodzhakul — 40.10°N, 65.80°EKhodzhakul — 40.10°N, 67.00°EDabrazhin — 42.76°N, 68.54°EDzharakuduk — 42.10°N, 62.60°EZhirkindek — 46.22°N, 64.15°EYalovach — 40.49°N, 69.70°EBostobe — 45.95°N, 64.65°E

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The named rock units Alectrosaurus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Alectrosaurus and its relatives

Late Cretaceous

Where Alectrosaurus and its relatives were recorded in the Late Cretaceous.

Found in the same rock

168 taxa

The Paleobiology Database records 18 sites for Alectrosaurus, 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

5 references

Each of the 19 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. 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 content1

Picture of Alectrosaurus

Credit
PaleoNeolitic
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itTyrannosauroidea through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gilmore 1933