biology

Huaxiazhoulong

Huaxiazhoulong 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 Huaxiazhoulong rather than just read about it. In short: Huaxiazhoulong is an extinct genus of ankylosaurid dinosaurs from the Late Cretaceous (Campanian) Tangbian Formation of Jiangxi Province, China. The genus contains a single species, H. shouwen, known from a partial skeleton.

Key takeaways

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

Reference excerpt

Huaxiazhoulong is an extinct genus of ankylosaurid dinosaurs from the Late Cretaceous (Campanian) Tangbian Formation of Jiangxi Province, China. The genus contains a single species, H. shouwen, known from a partial skeleton.

Discovery and naming

The Huaxiazhoulong holotype specimen, JPM-N000, was discovered in 1986 in sediments of the Tangbian Formation in Longxi village of Guangchang County in Fuzhou Municipality of Jiangxi Province, southern China. It was subsequently collected by the Guangchang County Museum, and it is now deposited at the Jiangxi Provincial Museum. The specimen is largely complete and well-preserved, comprising nine dorsal vertebrae, a sacral vertebra, most of the caudal vertebrae including the co-ossified tail "handle" and club, several ribs, the scapulocoracoids, the sternum, both forelimbs with three metacarpals, both hindlimbs with four metatarsals, most of the pelvic girdle, and three isolated osteoderms. In 2024, Zhu et al. described Huaxiazhoulong shouwen as a new genus and species of ankylosaurid dinosaurs based on these fossil remains. The generic name, Huaxiazhoulong, combines the pinyin forms of the Chinese words Huaxia ("China"), zhou ("armour"), and long ("dragon"). The specific name, shouwen, is pinyin for "painted in the shape of a beast". Huaxiazhoulong is the second ankylosaur to be named from Jiangxi Province, following Datai from the Zhoutian Formation earlier in 2024.

Description

Huaxiazhoulong is a large ankylosaurid, with an estimated body length of 6 metres (20 ft). The holotype specimen likely represents a mature individual, as evidenced by the fusion of the neural arches to the vertebral centrum, the co-ossified scapula and coracoid, high olecranon process of the ulna, and proximal fusion of the anterior and greater trochanters on the femur.

Classification

To determine the phylogenetic relationships of Huaxiazhoulong, Zhu et al. (2024) scored it and the geographically similar Datai into the character matrices of Zheng et al. (2018) and Raven et al. (2023). Both analyses recovered Huaxiazhoulong as a basal member of the Ankylosauridae, closely related to Jinyunpelta. Their results are displayed in the cladograms below:

References

Illustrations

Worked examples

Example 1 — a first encounter with Huaxiazhoulong

Start with the simplest possible case. Write down what Huaxiazhoulong 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 Huaxiazhoulong 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 Huaxiazhoulong 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 Huaxiazhoulong

In research: Huaxiazhoulong 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 Huaxiazhoulong 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: Huaxiazhoulong is common in secondary-school and first-year university syllabi. It links to neighbouring topics Ankylosauridae, Campanian dinosaurs, Dinosaur genera, so understanding it makes those chapters shorter.
In everyday life: Look for Huaxiazhoulong 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 Huaxiazhoulong in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Huaxiazhoulong 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 Huaxiazhoulong out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Huaxiazhoulong in simple terms?

Why does Huaxiazhoulong 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 Huaxiazhoulong?

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 Huaxiazhoulong.