biology

Ilokelesia

Ilokelesia 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 Ilokelesia rather than just read about it. In short: Ilokelesia is an extinct genus of abelisaurid theropod dinosaurs, preserved in layers of the Early Cretaceous (Albian) Huincul Formation (Neuquén Group) in Neuquén Province, Argentina. The only known specimen, consisting of fragmentary elements of the skull and skeleton, was described by Rodolfo Coria and Leonardo Salgado in late 1998.

Key takeaways

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

Reference excerpt

Ilokelesia is an extinct genus of abelisaurid theropod dinosaurs, preserved in layers of the Early Cretaceous (Albian) Huincul Formation (Neuquén Group) in Neuquén Province, Argentina. The only known specimen, consisting of fragmentary elements of the skull and skeleton, was described by Rodolfo Coria and Leonardo Salgado in late 1998.

Discovery and naming Ilokelesia is only known from very fragmentary elements of the skull and the axial and appendicular skeleton, discovered in 1991. It was discovered ten meters away from where the holotype of Huinculsaurus was discovered. The genus was named and described in 1998. The generic name is derived from the Mapuche language, ilo meaning "flesh" and kelesio, "lizard"; while the specific name reflects the name of the locality where the fossil was found, Aguada Grande.

Description Ilokelesia was a medium-sized theropod. In 2010 Gregory S. Paul gave a length of 4 meters (13 ft) and a weight of 200 kg (440 lbs). In 2016 it was estimated to be 5.3 metres (17 ft) in length in a comprehensive analysis of abelisaur size. The same year another estimation listed it higher at 5.8 meters (19 ft) and 840 kg (1,850 lbs). It is characterized by features of the skull, namely of the quadrate and postorbital bones. The vertebral series also has distinctive characters setting it apart from other abelisaurs, such as reduced processes on the cervical vertebrae and dorsal vertebrae lacking pleurocoels. Ilokelesia was considered the most basal abelisaur described at the time, sharing characters, such as an expansion of the postorbital bone above the orbit and a flange of the same bone inside the orbit, with Abelisauridae and Noasauridae; but it was considered to retain primitive features for Abelisauria, such as an opening in the quadrate bone and a T-shaped postorbital. A subsequent analysis has placed it within Abelisauridae, as a brachyrostran carnotaurine.

Worked examples

Example 1 — a first encounter with Ilokelesia

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

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

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

Frequently asked questions

What is Ilokelesia in simple terms?

Why does Ilokelesia 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 Ilokelesia?

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 Ilokelesia.