science

Turricula wanneri

Turricula wanneri is a science 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 Turricula wanneri rather than just read about it. In short: Turricula wanneri is an extinct species of sea snail, a marine gastropod mollusk in the family Clavatulidae. Taxonomy The species was originally described as Surcula wanneri by K.

Key takeaways

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

Reference excerpt

Turricula wanneri is an extinct species of sea snail, a marine gastropod mollusk in the family Clavatulidae.

Taxonomy The species was originally described as Surcula wanneri by K. Martin in 1914 from Eocene deposits of Java. It was later transferred to the genus Turricula following subsequent revisions of the turrid gastropods.

Description The shell is elongate and spindle-shaped, with the aperture occupying approximately half of the total shell length. The protoconch consists of two smooth, convex whorls that are not sharply separated from the later whorls. Early teleoconch whorls bear sharp transverse ribs which are intersected by a groove near the posterior suture, forming a row of nodules. On later whorls this groove develops into a broad depression corresponding to the sinus of the outer lip. Spiral sculpture is weak and appears mainly as fine spiral lines. In front of the depression a distinct spiral angle is formed where the ribs become nodular. Additional narrow spiral cords may occur along the sutures. The younger whorls show four to five rows of nodes elongated in the direction of the spiral. The aperture is ovate and sharply separated from the long, nearly straight siphonal canal. The inner lip is weakly developed. The outer lip, not preserved in the type material, is inferred to have had a deep rounded sinus. The shell length reaches about 14 millimetres (0.55 in).

Distribution Fossils of this species were found in the Nanggulan Formation of Java, Indonesia. The type material was collected from the Kali Puru section in the N₂ and N₃ nummulite beds of the Eocene sequence.

Gallery

References

Shuto, T. (1980) A note on the Eocene turrids of the Nangulan Formation, Java. In Igo, H. & Noda, H. (Eds.) Professor Saburo Kanno Memorial Volume. Institute of Geoscience, University of Tsukuba, Ibaraki, Japan, pp. 25–52, pls. 3–5.

External links Martin, K. (1914-1915). Die Fauna des Obereocäns von Nanggulan, auf Java. Sammlungen des Geologischen Reichs-Museums in Leiden, Neue Folge. 2(4): 107-222

Illustrations

Worked examples

Example 1 — a first encounter with Turricula wanneri

Start with the simplest possible case. Write down what Turricula wanneri claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Turricula wanneri 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 Turricula wanneri 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 Turricula wanneri

In research: Turricula wanneri appears in science 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 Turricula wanneri 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: Turricula wanneri is common in secondary-school and first-year university syllabi. It links to neighbouring topics Clavatulidae stubs, Eocene gastropods, Fossils of Indonesia, so understanding it makes those chapters shorter.
In everyday life: Look for Turricula wanneri 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 Turricula wanneri in 20 minutes

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

Frequently asked questions

What is Turricula wanneri in simple terms?

Turricula wanneri is an extinct species of sea snail, a marine gastropod mollusk in the family Clavatulidae. Taxonomy The species was originally described as Surcula wanneri by K.

Why does Turricula wanneri matter?

Because it connects several science 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 Turricula wanneri?

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 Turricula wanneri.