biology

Lilamna

Lilamna 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 Lilamna rather than just read about it. In short: Lilamna is an extinct genus of mackerel sharks from the Wulagen Formation of the Tarim Basin, China. It was originally named Archaeolamna apophysata, but that generic name was preoccupied by Archaeolamna kopingensis.

Key takeaways

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

Reference excerpt

Lilamna is an extinct genus of mackerel sharks from the Wulagen Formation of the Tarim Basin, China. It was originally named Archaeolamna apophysata, but that generic name was preoccupied by Archaeolamna kopingensis. Lilamna was named as a replacement in accordance with the rules of the International Code of Zoological Nomenclature. Although formerly assigned to the family Lamnidae, it is now considered to be a potential member of the family Pseudoscapanorhynchidae. Since this family is otherwise restricted to the Cretaceous, it is possible that the holotype tooth was reworked into the late Eocene sediments it was found in.

References

Illustrations

Worked examples

Example 1 — a first encounter with Lilamna

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

In research: Lilamna 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 Lilamna 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: Lilamna is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fossil taxa described in 1997, Fossil taxa described in 2021, Fossils of China, so understanding it makes those chapters shorter.
In everyday life: Look for Lilamna 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 Lilamna in 20 minutes

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

Frequently asked questions

What is Lilamna in simple terms?

Why does Lilamna 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 Lilamna?

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 Lilamna.