biology

Granastrapotherium

Granastrapotherium 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 Granastrapotherium rather than just read about it. In short: Granastrapotherium is an extinct genus of ungulate mammals, described from remains found in rocks of the Honda Group in the Tatacoa Desert, in the Colombian departments of Huila and Tolima, at the Miocene fossil site La Venta. The only species formally recognized is Granastrapotherium snorki (from Spanish, gran, "great"; Astrapotherium, "lightning beast"; and snorkel, breathing tube, in reference to the trunk).

Key takeaways

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

Reference excerpt

Granastrapotherium is an extinct genus of ungulate mammals, described from remains found in rocks of the Honda Group in the Tatacoa Desert, in the Colombian departments of Huila and Tolima, at the Miocene fossil site La Venta. The only species formally recognized is Granastrapotherium snorki (from Spanish, gran, "great"; Astrapotherium, "lightning beast"; and snorkel, breathing tube, in reference to the trunk). Remains found in Bolivia and Peru, seem to belong to Granastrapotherium or a very similar animal.

Description

This astrapothere differs from its coeval, the uruguaytheriine astrapotheriid Xenastrapotherium by their larger size, between 3 and 4 tonnes, with tusks about one meter long, making it one of the largest representatives of Astrapotheria, only surpassed by some species of Parastrapotherium. Other differences include the presence of only one premolar, the lack of incisors in both jaws and the disposition of the canine tooth, which are very large and horizontal, which reminds much less of those of hippos and more of the tusks of some ancient relatives of elephants (such as Palaeomastodon), although the tusks in elephants and their relatives are not formed by the canines but the incisors. Similarly, the large nostrils appear extremely withdrawn on the skull, so this creature had to have a larger trunk than other astrapotheres. Most likely, like elephants, this animal used its muscular proboscis together with its tusks to cut leaves off trees and shrubs.

Phylogeny Cladogram based in the phylogenetic analysis published by Vallejo-Pareja et al., 2015, showing the position of Granastrapotherium:

References

External links

Website of the Berkeley University about the fauna of La Venta, including Granastrapotherium "Snorki the giant's friends and relatives" in the blog Tetrapod Zoology Information and images about Granastrapotherium in Spanish

Illustrations

Worked examples

Example 1 — a first encounter with Granastrapotherium

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

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

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

Frequently asked questions

What is Granastrapotherium in simple terms?

Why does Granastrapotherium 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 Granastrapotherium?

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 Granastrapotherium.