science

Elimia tenera

Elimia tenera 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 Elimia tenera rather than just read about it. In short: Elimia tenera, formerly known as Goniobasis tenera, is an extinct species of freshwater snail with an operculum, in the aquatic gastropod mollusk family Pleuroceridae. This species flourished during the Eocene and is now known only from the fossil record.

Key takeaways

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

Reference excerpt

Elimia tenera, formerly known as Goniobasis tenera, is an extinct species of freshwater snail with an operculum, in the aquatic gastropod mollusk family Pleuroceridae. This species flourished during the Eocene and is now known only from the fossil record. The genus name Elimia was restored to this species in 1975; formerly it was placed in Goniobasis. Fossilized Elimia tenera shells occur in a region which is now southern Wyoming, northern Colorado and northeastern Utah. The best preserved Elimia tenera are from Lake Gosiute which fossils occur in the Fort Laclede Bed of the Laney Member at outcrops in Sweetwater County, in southwestern Wyoming.

Paleoecology and paleogeology

E. tenera occurs in fossil beds that are 46 to 51 million years old, in the Laney Member of the Green River Formation. Evidence suggests that the Elimia tenera were deposited nearshore in a series of shallow lakes, which geologists have named the Fossil, Uinta and Gosiute Lakes. The climate was subtropical and there were intermittent volcanic eruptions.

'Turritella agate' Fossil shells of E. tenera are hosted in chalcedony-rich sedimentary rock. This rock was originally incorrectly called Turritella agate. It was named after the sea snail genus Turritella because of the resemblance of the freshwater snail shells to the Turritella fossils that are found in agate in Texas and California. The Wyoming fossil shells, however, are in a freshwater sedimentary deposit and identifiable as the genus Elimia, and are less-silicified than those in Texas and California.

References

External links

Illustrations

Worked examples

Example 1 — a first encounter with Elimia tenera

Start with the simplest possible case. Write down what Elimia tenera 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 Elimia tenera 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 Elimia tenera 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 Elimia tenera

In research: Elimia tenera 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 Elimia tenera 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: Elimia tenera is common in secondary-school and first-year university syllabi. It links to neighbouring topics Elimia, Eocene gastropods, Fossil taxa described in 1845, so understanding it makes those chapters shorter.
In everyday life: Look for Elimia tenera 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 Elimia tenera in 20 minutes

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

Frequently asked questions

What is Elimia tenera in simple terms?

Why does Elimia tenera 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 Elimia tenera?

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 Elimia tenera.