Sinornithoides

Sinornithoides is a genus of troodontid theropod dinosaurs that lived during the Early Cretaceous of Inner Mongolia, China. It contains only a single species, S. youngi. Sinornithoides measured approximately 1 metre (3.3 ft) long, and probably ate invertebrates and other small prey.

Sinornithoides

★Kumiko★ · CC BY-SA 2.0 · 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
TroodontinaePBDB
Diet
carnivore, omnivorePBDB, for Troodontidae
Life habit
ground dwellingPBDB, for Troodontidae
Motility
actively mobilePBDB, for Theropoda
Environment
terrestrialPBDB, for Troodontidae

Time the record covers

At most 37 million years on record.

Every occurrence read is dated to somewhere between 137.05 Mya and 100.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Cretaceous — about 2 of 2 occurrencesEarly CretaceousLate Cretaceous — about 0 of 2 occurrences138–137 Mya — about 0.0 occurrences137–135 Mya — about 0.0 occurrences135–134 Mya — about 0.0 occurrences134–133 Mya — about 0.0 occurrences133–131 Mya — about 0.0 occurrences131–130 Mya — about 0.0 occurrences130–129 Mya — about 0.0 occurrences129–128 Mya — about 0.0 occurrences128–126 Mya — about 0.0 occurrences126–125 Mya — about 0.0 occurrences125–124 Mya — about 0.0 occurrences124–123 Mya — about 0.0 occurrences123–121 Mya — about 0.0 occurrences121–120 Mya — about 0.0 occurrences120–119 Mya — about 0.0 occurrences119–118 Mya — about 0.0 occurrences118–116 Mya — about 0.0 occurrences116–115 Mya — about 0.0 occurrences115–114 Mya — about 0.0 occurrences114–112 Mya — about 0.3 occurrences112–111 Mya — about 0.4 occurrences111–110 Mya — about 0.4 occurrences110–109 Mya — about 0.0 occurrences109–107 Mya — about 0.0 occurrences107–106 Mya — about 0.0 occurrences106–105 Mya — about 0.0 occurrences105–104 Mya — about 0.0 occurrences104–102 Mya — about 0.0 occurrences102–101 Mya — about 0.0 occurrences101–100 Mya — about 0.0 occurrences137.8 Mya99.8 Mya

2 occurrences of Sinornithoides on record, most of them in the Early 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

2 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

2 formations

Zhonggou — 41.58°N, 97.58°EEjinhoro — 39.36°N, 108.41°E

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

Sinornithoides and its relatives

Early Cretaceous

Where Sinornithoides and its relatives were recorded in the Early Cretaceous.

Found in the same rock

10 taxa

The Paleobiology Database records 2 sites for Sinornithoides, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

2 references

Each of the 2 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 Sinornithoides

Credit
★Kumiko★
Licence
CC BY-SA 2.0
Commercial use
the licence allows it

No 3D scan of Sinornithoides was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

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 itTroodontinae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Russell and Dong 1994