#rusingoryx

[shahkernajib]

Edgar Gets Ambushed By Rusingoryx

[alphynix]

Rusingoryx atopocranion, a bovid from the Late Pleistocene of Rusinga Island, Kenya, living about 75,000 to 50,000 years ago. It was closely related to the modern wildebeest and was about the same size, probably standing around 1.15m tall at the shoulder (3′9″).

Its skull was especially unusual, with enlarged nasal passages forming a raised “crest” on its forehead -- features previously unknown in mammals, but strongly convergent with some types of hadrosaurid dinosaurs.

This structure seems to have been used for sound production, and calculations suggest it made a sort of trumpeting sound in a similar range to a vuvuzela. So a whole herd might have sounded something like this.

[likadaru]

Гну с «вувузелой»

В голове у древних антилоп нашли духовой инструмент, аналог которого был только у ещё более древних динозавров. Вообще говоря, в заголовке мы должны были бы поставить слово доисторический потому что речь пойдёт вымершем родственнике современных гну, который известен как Rusingoryx atopocranion. Впервые останки этих антилоп времён плейстоцена нашли ещё в 1983, но лишь последние палеонтологические находки, сделанные на острове вблизи побережья Кении, позволили исследователям изучить R. ato читать полностью

сообщает Likada PRO News

[incidentsandreflections]

Incidents and Reflections Episode 56 - 02/07/2016

Incidents and Reflections - 02/07/2016 by Incidentsandreflections on Mixcloud

See Episode 4 for our discussion of the K-Pg extinction itself. Article links

Convergence between Rusingoryx and lambeosaurine hadrosaurs (Science News coverage) [02:57]

Life after the K-Pg extinction (After the Dinosaurs on Amazon.com) [15:17]

Song links

Children of the Revolution - T. Rex [00:00]

It Ain’t the End of the World - George Segal and Blu Mankuma [51:45]

[yahoonewsdigest-intl]

Ancient wildebeest used dinosaur-like nose to trumpet across savanna

Science

Ancient wildebeest used dinosaur-like nose to trumpet across savanna

They lived millions of years apart but an ancient wildebeest and duck-billed dinosaurs had something in common ... their noses. The weird nasal structure of the rusingoryx, which roamed Africa's savannas tens of thousands of years ago, has been revealed after fossils were found in Kenya. Its crescent-shaped protrusion on the top of its head was unlike anything on any other mammal, past or present. Instead, it resembled the head crests of a group of duck-billed dinosaurs called hadrosaurs, researchers say.

The nasal dome is a completely new structure for mammals — it doesn't look like anything you could see in an animal that's alive today

Researcher Haley O'Brien

The fossils of rusingoryx, about the size of its close cousin the wildebeest, date from about 55,000 to 75,000 years ago. Its hollow nasal structure may have enabled the horned, hoofed grass-eater to produce a low trumpeting sound to communicate over long distances with others in its herd, Ohio University paleontologist Haley O'Brien said. "This structure was incredibly surprising," O'Brien said. "To see a hollow nasal crest outside of dinosaurs and in a mammal that lived so recently is very bizarre." Lambeosaurus and corythosaurus, hadrosaurs with similar nasal structures, lived about 75 million years ago.

Vocalizations can alert predators, and moving their calls into a new frequency could have made communication safer.

Haley O'Brien