biology

Neosodon

Neosodon 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 Neosodon rather than just read about it. In short: Neosodon (meaning "new tooth") was a genus of sauropod dinosaur from the late Tithonian-aged (Upper Jurassic) Sables et Gres a Trigonia gibbosa of Pas-de-Calais department, France. It has never been formally given a species name, but is often seen as N. praecursor, which actually comes from a different animal.

Key takeaways

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

Reference excerpt

Neosodon (meaning "new tooth") was a genus of sauropod dinosaur from the late Tithonian-aged (Upper Jurassic) Sables et Gres a Trigonia gibbosa of Pas-de-Calais department, France. It has never been formally given a species name, but is often seen as N. praecursor, which actually comes from a different animal. Often in the past, it had been assigned to the wastebasket taxon Pelorosaurus, but restudy has suggested that it could be related to Turiasaurus, a roughly contemporaneous giant Spanish sauropod. It is only known from six teeth.

History and taxonomy

Moussaye named this genus for a large, broken, worn tooth found in Wilmille, near Boulogne-sur-Mer, and neglected to give it a species name. He thought that it belonged to a theropod like Megalosaurus. Since then, five more teeth have been found and assigned to Neosodon. Sauvage synonymized it with his tooth species Iguanodon praecursor, which by this time had become mixed up with Edward Drinker Cope's roughly contemporaneous American Morrison Formation genus Caulodon (now a synonym of Camarasaurus). However, the two are not based on the same type, as "I". praecursor comes from slightly older rocks: the same unnamed Kimmeridgian formation as Morinosaurus. Earlier reviews (Romer, 1956; Steel, 1970) accepted it as a synonym of Pelorosaurus, and considered it a possible brachiosaurid. In the 1990s, French researchers published on new camarasaurid bones from the same formation. At first, Buffetaut and Martin (1993) suggested that they belonged to Neosodon praecursor, but Le Loeuff et al. (1996) later rejected this, as Neosodon is based only on several teeth, which did not overlap the new material. The latest review accepted both Neosodon and "Iguanodon" praecursor as dubious sauropods. However, Royo-Torres et al. (2006), in their description of Turiasaurus, noted that this tooth was similar to those of their genus and suggested that it could be a turiasaur.

Paleobiology The teeth referred to Neosodon are large (60 mm [2.36 in] tall and a cross-section of 35 by 20 mm (1.38 by 0.79 in) in its incomplete state, estimated at 80 mm [3.15 in] tall if complete) and spear-like or spatulate in shape. The owner would have been a large, quadrupedal herbivore.

References

Illustrations

Worked examples

Example 1 — a first encounter with Neosodon

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

In research: Neosodon 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 Neosodon 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: Neosodon is common in secondary-school and first-year university syllabi. It links to neighbouring topics Dinosaur genera, Dinosaurs of France, Fossil taxa described in 1885, so understanding it makes those chapters shorter.
In everyday life: Look for Neosodon 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 Neosodon in 20 minutes

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

Frequently asked questions

What is Neosodon in simple terms?

Why does Neosodon 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 Neosodon?

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 Neosodon.