biology

Xinjiangovenator

Xinjiangovenator is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Xinjiangovenator rather than just read about it. In short: Xinjiangovenator (meaning "Xinjiang hunter") is a genus of coelurosaurian dinosaurs, possibly part of the group Maniraptora, which lived in the Lianmuqin Formation of the Tugulu Group of China, dated to the Early Cretaceous period, sometime between the Valanginian and Albian stages. Discovery The remains of Xinjiangovenator were found in the Lianmuqin Formation of Wuerho, Xinjiang, China, and were first described by…

Key takeaways

Xinjiangovenator belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Xinjiangovenator to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Xinjiangovenator from memory before moving on to harder problems.

Reference excerpt

Xinjiangovenator (meaning "Xinjiang hunter") is a genus of coelurosaurian dinosaurs, possibly part of the group Maniraptora, which lived in the Lianmuqin Formation of the Tugulu Group of China, dated to the Early Cretaceous period, sometime between the Valanginian and Albian stages.

Discovery The remains of Xinjiangovenator were found in the Lianmuqin Formation of Wuerho, Xinjiang, China, and were first described by Dong Zhiming in 1973. The genus is based on a single specimen, an articulated partial right lower leg, containing the tibia, three pieces of the fibula, the calcaneum and the astragalus, as well as two fused pedal phalanges. This specimen, IVPP V4024-2, is the holotype of the genus. The holotype was originally thought to be another specimen of Phaedrolosaurus. However, Phaedrolosaurus is based only on a non-diagnostic tooth, so the hindlimb bones were given their own genus by Oliver Rauhut and Xu Xing in 2005. The type species is Xinjiangovenator parvus. The generic name is derived from the autonomous region of Xinjiang and Latin venator, "hunter". The specific name parvus means "small" in Latin. The lower leg (tibia plus ankle bones) has a length of 312 millimeters (12.3 inches). Gregory S. Paul estimated in 2010 that Xinjiangovenator individuals had a length of 3 meters and a mass of 70 kg. Rauhut & Xu (2005) established two autapomorphies (unique derived traits) that could be used to characterize Xinjiangovenator. First, the lateral condyle (outer ankle joint) at the lower end of the tibia extends further backwards than the outer edge of the portion of the tibia near the knee. Secondly, the proximal part of the fibula (near the knee) has a longitudinal groove along its front edge.

Classification Rauhut & Xu (2005) originally placed Xinjiangovenator within the coelurosaur subgroup Maniraptora using a phylogenetic analysis. It was considered to be more closely related to paravians such as dromaeosaurids and birds, rather than oviraptorosaurians and therizinosaurs. This placement was justified by the presence of a tall and wide ascending process of the astragalus bone. In addition, the fibular condyle of the femur expanded backwards and the fibula tapered drastically towards the ankle. These characteristics were also found to be present in the coelurosaur Bagaraatan, and Rauhut & Xu (2005) suggested that Xinjiangovenator and Bagaraatan were sister taxa. The 2010 description of Zuolong by Jonah Choiniere, James M. Clark, Catherine Forster, & Xu Xing found a different position for Xinjiangovenator in their phylogenetic analysis. Due to its fragmentary nature, Xinjiangovenator was found to have an unstable position within Coelurosauria. Some, but not all, of the phylogenetic trees found Xinjiangovenator as the sister taxon to Ornitholestes based on the proximal part of the tibia being just as wide along its front edge as its rear edge. When Xinjiangovenator was removed from the analysis, Ornitholestes was found to be a basal maniraptoran.

References

Illustrations

Worked examples

Example 1 — a first encounter with Xinjiangovenator

Start with the simplest possible case. Write down what Xinjiangovenator claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Xinjiangovenator before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Xinjiangovenator ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Xinjiangovenator

In research: Xinjiangovenator appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Xinjiangovenator in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Xinjiangovenator is common in secondary-school and first-year university syllabi. It links to neighbouring topics Aptian dinosaurs, Barremian dinosaurs, Coelurosauria, so understanding it makes those chapters shorter.
In everyday life: Look for Xinjiangovenator outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Xinjiangovenator in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Xinjiangovenator means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Xinjiangovenator out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Xinjiangovenator in simple terms?

Why does Xinjiangovenator matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Xinjiangovenator?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Xinjiangovenator.