earth science

Pyramidella dolabrata

Pyramidella dolabrata is a earth 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 Pyramidella dolabrata rather than just read about it. In short: Pyramidella dolabrata, common name the "giant Atlantic pyram", is a somewhat variable species of small to medium-sized (max size 36 mm) sea snail, a marine gastropod mollusk in the (mostly minute) family Pyramidellidae, the pyram snails. Description The length of the shell varies between 14 mm and 36 mm.

Key takeaways

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

Reference excerpt

Pyramidella dolabrata, common name the "giant Atlantic pyram", is a somewhat variable species of small to medium-sized (max size 36 mm) sea snail, a marine gastropod mollusk in the (mostly minute) family Pyramidellidae, the pyram snails.

Description

The length of the shell varies between 14 mm and 36 mm. The white shell is conical, turreted, polished, elongated, slightly transparent. It has three or four transverse, narrow reddish or chestnut spiral lines on the body whorl, and two on the whorls of the teleoconch. The middle band s always narrowest; the others are wider and deeper colored. The pointed spire is composed of from ten to twelve distinct, smooth, slightly convex whorls. The body whorl is more inflated than the other whorls. The shell is smooth and umbilicated. The ovate aperture is subrotund at its base, and generally marked within, with very prominent ridges continued upon some specimens even to the edge of the sharp outer lip. The outer lip is often lirate within. The columella is slightly arcuated, recurved around the umbilicus. It is furnished at its base with three folds, the upper of which is more prominent than the others. The small umbilicus is cylindrical, narrow and deep. The maximum recorded shell length is 36 mm.

Anatomy The complete nucleotide sequence of the mitochondrial genome of Pyramidella dolabrata has been available since 2008.

Distribution This marine species has a wide distribution. It has been recorded in:

The Caribbean Sea, the Gulf of Mexico, the Lesser Antilles The Atlantic Ocean off the Cape Verdes, St. Helena, São Tomé and Príncipe, Angola, West Africa The Indian Ocean : off Madagascar, Mauritius The Indo-Pacific Region.

Habitat The minimum recorded depth for this species is 0 m. The maximum recorded depth is 57 m.

References

External links

OBIS: Pyramidella dolabrata "Pyramidella dolabrata". Gastropods.com. Retrieved 7 February 2012.

Illustrations

Worked examples

Example 1 — a first encounter with Pyramidella dolabrata

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

In research: Pyramidella dolabrata appears in earth 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 Pyramidella dolabrata 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: Pyramidella dolabrata is common in secondary-school and first-year university syllabi. It links to neighbouring topics Animal taxa named by Carl Linnaeus, Gastropods described in 1758, Gastropods of Cape Verde, so understanding it makes those chapters shorter.
In everyday life: Look for Pyramidella dolabrata 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 Pyramidella dolabrata in 20 minutes

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

Frequently asked questions

What is Pyramidella dolabrata in simple terms?

Why does Pyramidella dolabrata matter?

Because it connects several earth 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 Pyramidella dolabrata?

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 Pyramidella dolabrata.