biology

Ichthyotringa

Ichthyotringa 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 Ichthyotringa rather than just read about it. In short: Ichthyotringa is an extinct genus of marine aulopiform ray-finned fish from Cretaceous-aged marine strata of the Middle East, Europe, and North America. Ichthyotringa are characterized by a slender, highly elongated beak that accounts for a third of the fish's length.

Key takeaways

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

Reference excerpt

Ichthyotringa is an extinct genus of marine aulopiform ray-finned fish from Cretaceous-aged marine strata of the Middle East, Europe, and North America. Ichthyotringa are characterized by a slender, highly elongated beak that accounts for a third of the fish's length.

Taxonomy The following species are known:

I. africana Arambourg, 1954 - Cenomanian to Turonian of Morocco (Jbel Tselfat), Italy including Sicily (Scaglia Rossa Formation) & Germany (Hesseltal Formation) ?I. cuneata Schwarzhans, Stringer & Welton, 2022 [otolith] - late Albian of Texas, US (Pawpaw Formation) I. damoni (Davis, 1887) - Santonian of Lebanon (Sahel Alma) I. delicata (Hay, 1903) - Cenomanian of Lebanon (Sannine Formation) I. mexicana Fielitz & González Rodríguez, 2008 - late Albian of Mexico (El Doctor Formation) I. ferox (Davis, 1887) - Santonian of Lebanon (Sahel Alma) I. furcata (Agassiz, 1844) - Santonian of Lebanon (Sahel Alma), Campanian of Germany (Ahlen Formation) I. pindica Argyriou, Alexopoulos, Carrillo-Briceño & Cavin, 2022 - Maastrichtian of Gavdos, Greece (Pindos Unit) ?I. tavernei (Nolf & Stringer, 1996) [otolith] - Maastrichtian of Mississippi (Ripley Formation) & Maryland (Severn Formation), US, the Netherlands (Maastricht Formation) and India (Intertrappean Beds) (="genus Osteoglossidarum" tavernei Nolf & Stringer, 1996) ?I. tenuirostris Cope, 1878 (type species) - allegedly Late Cretaceous of South Dakota & Nebraska, US, but provenance uncertain and may represent a mislabeled specimen originating from Lebanon

Two species known only from otoliths are placed in this genus with some uncertainty, I. cuneata & I. tavernei. These otoliths were previously thought to have a similar morphotype to osteoglossiform fishes until well-preserved otoliths verifiable as the related genus Apateodus were described. The otoliths from these taxa closely resembled but were distinct from Apateodus, causing them to be tentatively placed in the related genus Ichthyotringa. The original name for the genus, coined by Louis Agassiz, was Rhinellus, with the type species Rhinellus furcatus from Germany and Lebanon. In 1878, Edward Drinker Cope coined the genus Ichthyotringa for specimens of a similar fish (I. tenuirostris) allegedly recovered from the Niobrara Formation of South Dakota and Nebraska. Later on, Agassiz's Rhinellus was found to be preoccupied by a synonym of the toad genus Rhinella, and thus Cope's Ichthoytringa had precedence as the proper genus name. However, Cope's Ichthyotringa tenuirostris may not originate from North America, as he had not personally found the specimens and efforts by him & others to find the type locality were unsuccessful, and no other skeletons of Ichthyotringa have been identified from the United States. Later analyses have found the composition of the rock surrounding the specimens to be reminiscent of the Sahel Alma site in Lebanon, and unlike any Niobrara deposit, making it likely that it represents a mislabeled specimen from Lebanon.

Paleoecology Ichthyotringa largely appears to have inhabited warm surface waters, although the Sahel Alma locality, where many Ichthyotringa species are found, was a deepwater habitat. It appears to have been predated on by larger fish, with one specimen of the predatory fish Protostomias from Morocco having the skeleton of an Ichthyotringa in its stomach.

References Alepisauriformes

Illustrations

Worked examples

Example 1 — a first encounter with Ichthyotringa

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

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

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

Frequently asked questions

What is Ichthyotringa in simple terms?

Why does Ichthyotringa 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 Ichthyotringa?

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 Ichthyotringa.