biology

Habrosaurus

Habrosaurus 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 Habrosaurus rather than just read about it. In short: Habrosaurus, meaning "graceful lizard", is an extinct genus of prehistoric salamanders, and the oldest and largest known member of the family Sirenidae. Two species are known, H. prodilatus from the middle Campanian Dinosaur Park Formation of Alberta, and H. dilatus from the late Maastrichtian and Paleocene of western North America.

Key takeaways

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

Reference excerpt

Habrosaurus, meaning "graceful lizard", is an extinct genus of prehistoric salamanders, and the oldest and largest known member of the family Sirenidae. Two species are known, H. prodilatus from the middle Campanian Dinosaur Park Formation of Alberta, and H. dilatus from the late Maastrichtian and Paleocene of western North America. It is relatively common in the Lance Formation of Wyoming, and less common in the Hell Creek Formation of Montana.

Description Habrosaurus was a gigantic sirenid, its length is estimated to be around 1.6 m (5 ft 3 in), estimated from its trunk vertebrae length (up to 2 cm long). H. prodilatus possessed chisel-like teeth, while H. dilatus had bulkier crowns. The teeth of H. dilatus also exhibited heavy wear facets while those of H. prodilatus had only mild wear, suggesting that H. dilatus was more adapted for durophagy than H. prodilatus. H. dilatus may have preyed upon arthropods with hard carapaces as well as mollusks.

Classification

Habrosaurus is a sister taxa to both Pseudobranchus and Siren which are the only genera in the family Sirenidae. Sirenids are classified by their neotenous traits (complete lack of hindlimbs and external gills in both larval and adult states).

References

Illustrations

Worked examples

Example 1 — a first encounter with Habrosaurus

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

In research: Habrosaurus 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 Habrosaurus 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: Habrosaurus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Campanian genus first appearances, Cretaceous United States, Cretaceous amphibians of North America, so understanding it makes those chapters shorter.
In everyday life: Look for Habrosaurus 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Habrosaurus” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Habrosaurus in 20 minutes

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

Frequently asked questions

What is Habrosaurus in simple terms?

Why does Habrosaurus 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 Habrosaurus?

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 Habrosaurus.