biology

Narindasaurus

Narindasaurus 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 Narindasaurus rather than just read about it. In short: Narindasaurus (meaning "Narinda Bay lizard") is a genus of turiasaurian sauropod dinosaur from the Middle Jurassic Isalo III Formation of Madagascar. The type and only species is Narindasaurus thevenini.

Key takeaways

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

Reference excerpt

Narindasaurus (meaning "Narinda Bay lizard") is a genus of turiasaurian sauropod dinosaur from the Middle Jurassic Isalo III Formation of Madagascar. The type and only species is Narindasaurus thevenini. The only known specimen of the genus was first described in 1907, but it was not formally named as a distinct species until 2020.

Discovery and naming Sauropod specimens were collected from various sites in Madagascar for the Muséum d'Histoire Naturelle de Paris between 1896 and 1905. They were briefly noted on by Paul Lemoine in 1906. In 1907, Armand Thevenin described the specimen that would later become the holotype of Narindasaurus thevenini as belonging to the species Bothriospondylus madagascariensis. It was briefly mentioned in 1972. In 1986, José Bonaparte considered the specimens described by Thevenin to belong to the species Lapparentosaurus madagascariensis. It was reevaluated in 2008 and 2010 as both a distinct taxon and a non-neosauropod eusauropod. Its teeth were noted as being characteristic of turiasaurs in 2015. The genus and species Narindasaurus thevenini were named in 2020 by Rafael Royo-Torres and colleagues, and it was demonstrated to be a turiasaur by phylogenetic analysis. The genus name refers to Narinda Bay, which is near the type locality of the species, and the species name honors Thevenin.

Fossil record The holotype and only known specimen of Narindasaurus thevenini is a partial skeleton recovered from the Isalo III Formation of Madagascar. The specimen, which is housed at the Muséum national d’Histoire naturelle, is composed of a right maxillary or premaxillary tooth (MNHN MAJ 423), an anterior caudal vertebra (MNHN MAJ 424), a posterior caudal vertebra (MNHN MAJ 426), a middle-anterior chevron (MNHN MAJ 425), a right ulna (MNHN MAJ 427), a right tibia (MNHN MAJ 428), a right fibula with a distal chevron attached (MNHN MAJ 429) and a left pubis (MNHN MAJ 430).

Description The teeth show the heart-shaped morphology typical of turiasaurs. The caudal vertebrae from the middle-anterior region of the tail show an asymmetric lateral fossa that is placed in a posterior position, uniquely to the genus.

References

Illustrations

Worked examples

Example 1 — a first encounter with Narindasaurus

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

In research: Narindasaurus 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 Narindasaurus 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: Narindasaurus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Dinosaur genera, Dinosaurs of Madagascar, Fossil taxa described in 2020, so understanding it makes those chapters shorter.
In everyday life: Look for Narindasaurus 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 Narindasaurus in 20 minutes

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

Frequently asked questions

What is Narindasaurus in simple terms?

Why does Narindasaurus 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 Narindasaurus?

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 Narindasaurus.