Fenghuangopterus: a toothed Jurassic pterosaur from China

An incomplete Jurassic skeleton preserves a distinctive tooth row and measurable wing proportions.

Artistic long-tailed pterosaur perched near a Jurassic lake
Life reconstruction near a lake. Colour, posture and exact habitat are artistic choices, not observations of CYGB-0037.

Fenghuangopterus lii was named from an incomplete skeleton in western Liaoning. Teeth and surviving wing bones permit comparisons with other long-tailed pterosaurs. The flattened specimen cannot establish its colour, prey or exact wingspan.

Quick facts

Scientific nameFenghuangopterus lii, Lü and colleagues, 2010
HolotypeCYGB-0037, incomplete compressed skeleton
LocalityLinglongta, Jianchang County, Liaoning, China
Rock and ageTiaojishan Formation, Jurassic
Upper teethMore than eleven pairs reported in the original description
WingFourth metacarpal about 55% of humerus length
FoodParticular prey not established
Evidence guide

What can the fossils tell us?

One compressed specimen

The name rests on CYGB-0037. Its bones are incomplete and flattened within a slab, limiting some anatomical readings.

A find from Linglongta

Lü Junchang and colleagues named Fenghuangopterus lii in 2010 from specimen CYGB-0037, discovered near Linglongta in Jianchang County, Liaoning. The locality exposes the Tiaojishan Formation and its Jurassic vertebrates. The original paper referred to a Middle Jurassic age. Later work has refined the age boundaries of these beds, so an age assigned to the whole formation should not be treated as a direct date for this slab.

The skeleton is incomplete and compressed. The describers used its skull, tooth row and wing bones, not a complete three-dimensional body. Jianchangnathus from the same area provides a valuable comparison, but the two fossils must not be blended into one animal.

What the teeth and wing preserve

The initial diagnosis counted more than eleven upper tooth pairs. The rear tooth lies below the posterior corner of the antorbital opening. Tooth number and position help distinguish jaws, although compression and missing portions qualify fine details. Teeth alone cannot establish whether it caught fish, insects or another food.

The fourth metacarpal, which supports the wing finger, measures about 55% of the humerus length. That is a ratio between preserved bones. A whole wingspan needs reconstruction of absent elements and wing position; the illustrated flying animal is therefore not a scale diagram.

Interpretive scene of a slab containing long-tailed pterosaur bones
Conceptual slab illustration, not a photograph of holotype CYGB-0037. Bone positions and completeness are interpretive.

A debated position among long-tailed forms

The original authors called Fenghuangopterus a scaphognathine based on its combined skull and limb characters. A later study of pterosaurs from western Liaoning compared it with Jianchangnathus and left its precise position among scaphognathids uncertain. The disagreement concerns fine placement, not the existence of the fossil itself.

Dorygnathus is another toothed long-tailed Jurassic pterosaur. A broad resemblance in silhouette does not demonstrate direct ancestry. Comparisons depend on corresponding bones, tooth placement and wing proportions.

Artistic long-tailed pterosaur above a Jurassic lake
Artistic flight scene. Colour, flight height and this particular setting are not established by CYGB-0037.

Setting and reconstruction limits

The Linglongta beds preserve a Jurassic ecosystem with small vertebrates and plants. This is the geological setting of the fossil rather than a record of a particular day in the animal's life. No stomach contents identify its prey, and fossil evidence does not preserve its living colour.

The cover and lake scene imagine a live long-tailed pterosaur. Wing outline, pose and behaviour are artistic reconstructions informed by the group as a whole. CYGB-0037 does not record flight itself.

Frequently asked questions

Where was Fenghuangopterus found?

Holotype CYGB-0037 came from Linglongta in Jianchang County, Liaoning, China, in Jurassic strata of the Tiaojishan Formation.

How many upper teeth did it have?

The original description reported more than eleven pairs, with the rear tooth positioned beneath the back of the antorbital opening.

Is its exact wingspan known?

No. A ratio between the fourth metacarpal and humerus is known, but absent wing parts prevent a direct full-span measurement.

What did it eat?

The jaws had teeth, but no prey or stomach contents establish a particular diet.