biology

Itapeuasaurus

Itapeuasaurus 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 Itapeuasaurus rather than just read about it. In short: Itapeuasaurus (meaning "Itapeua lizard") is a genus of rebbachisaurid sauropod dinosaur from the Alcântara Formation (Itapecuru Group) of Maranhão in Brazil. The type and only species is Itapeuasaurus cajapioensis.

Key takeaways

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

Reference excerpt

Itapeuasaurus (meaning "Itapeua lizard") is a genus of rebbachisaurid sauropod dinosaur from the Alcântara Formation (Itapecuru Group) of Maranhão in Brazil. The type and only species is Itapeuasaurus cajapioensis. It is the most complete Cenomanian-aged diplodocoid known from South America and it is also the first reported Cenomanian-aged rebbachisaurid discovered in South America.

Discovery and naming In November 2014, fisherman Carlos Wagner Silva discovered a fossilised humerus on the beach at Itapeua. In May 2015, paleontologist Manuel Alfredo Medeiros and his students were sent in and they secured several bones, including the holotype, UFMA. 1.10.1960a, which consists of six vertebrae, and a paratype containing around six to seven vertebrae, a humerus and a partial ischium - the largest preserved vertebra reached up to 40 centimetres (16 in). Because the location where the holotype was found is an intertidal area, excavating the holotype was very hard and could only be excavated around four hours a day during each daily tidal cycle. In 2019, the species Itapeuasaurus cajapioensis was named and described.

Phylogeny Lindoso et al., (2019) placed Itapeuasaurus in the Nigersaurinae, as the sister taxon to Demandasaurus.

References

Worked examples

Example 1 — a first encounter with Itapeuasaurus

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

In research: Itapeuasaurus 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 Itapeuasaurus 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: Itapeuasaurus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cenomanian dinosaurs, Dinosaur genera, Dinosaurs of Brazil, so understanding it makes those chapters shorter.
In everyday life: Look for Itapeuasaurus 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 Itapeuasaurus in 20 minutes

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

Frequently asked questions

What is Itapeuasaurus in simple terms?

Why does Itapeuasaurus 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 Itapeuasaurus?

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 Itapeuasaurus.