Jurassic
Yi qi
Yi qi
The catalogue presents Yi qi as a carnivore member of Scansoriopterygidae that lived during the Jurassic, between 163 Ma. Its estimated range is 0.38 m in length and 0.38 kg in mass, giving a practical sense of scale. Reference material comes from Hebei, China. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Yi qi, the PBDB records the taxonomic attribution as Xu et al. (2015).
The PBDB places it in Scansoriopterygidae, and the catalogue record assigns it to the family Scansoriopterygidae.
- PBDB · taxon.parent
- Scansoriopterygidae
In the PBDB record, the reported stratigraphic range runs from the Callovian to the Oxfordian.
The PBDB catalogues 1 occurrence, with material from the Tiaojishan Formation (1). Provenance: China.
The catalogue records the holotype as STM 31-2 and the type locality as “Hebei, China”.
- STM 31-2
- Hebei, China
The catalogue's reference measurements are 0.38 m in length and 0.38 kg in mass — estimates, which vary with specimen and method.
- 0.38 m
- 0.38 kg
The record gathers 1 bibliographic references registered in the PBDB, listed below.
Where it lived
Fossil occurrences on today’s map and in the tectonic reconstruction.
Positions reconstructed by PBDB/GPlates, not observed; this is not an exact habitat map.
Artistic 3D reconstruction
There is no approved species-specific 3D model yet. Generic anatomy will not be presented as if it were evidence.
Physical Specifications
- Length
- 0.38 m
- Weight
- 0.38 kg
- Period
- Jurassic
- Time range
- 163 Ma
Discovery Information
- First Discovery
- 2015
- Described by
- Xu Xing
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Saurischia
- Family
- Scansoriopterygidae
- Genus
- Yi
- Species
- Y. qi
Data status
Taxonomic name matched to PBDB and checked on 2026-08-08.
Taxonomic linkage does not automatically validate size, mass, behaviour or appearance.
- Type specimen
- STM 31-2
- Type locality
- Hebei, China