Arsinoitherium was a twin-horned mammal that looked like a rhino but is more closely related to present-day elephants.
Arsinoitherium Scientific Classification
Scientific name
Arsinoitherium Physical Characteristics
5511 lb
Arsinoitherium Distribition

Arsinoitherium was a double- horned animal that appeared like a rhinocerous yet is extra carefully pertaining to existing- day elephants. This extinct genus resided in Africa and also on the Arabian peninsula in between the Late Eocene and also Center Oligocene durations (in between 45 to 24 million years ago). Arsinoitherium is a genus of paenungulata creatures (practically hoofed creatures) together with living species like the elephants, manatees, and also hyraxes.

Summary & & Dimension

Arsinoitherium is a genus of extinct big creatures understood from down payments from the Eocene Date concerning 56 million to 34 million years earlier. A much more current exploration in various other areas reveals that participants of the genus endured right into the Oligocene Date concerning 34 million to 23 million years earlier.

The genus Arsinoitherium was called after Queen Arsinoe I of Old Egypt. The Faiyum Sanctuary, where the initial fossils of the genus were found, is called after her. The genus name is a recommendation to this reality. Arsinoitherium comes from the order Embrithopoda, which is currently extinct. 2 well- recognized species in the genus consist of Arsinoitherium zitteli and also Arsinoitherium giganteus

As for appearance goes, Arsinoitherium is commonly called an extravagant rhinoceros. It had 2 big horns on the nasal bones and also a smaller sized set on the frontal bones. The dimension of this animal is additionally equivalent to that of a big white rhinoceros. The arsinoitherium got to sizes of as much as 3.5 meters (11 feet). They stood at concerning 1.75 m (5.7 feet) high at the shoulders.

The bone framework of Arsinoitherium is rather comparable to that of elephants. They had elephant- like hips, feet, and also heads. Their twin horns, which can expand to as much as 2.5 feet in size, were hollow and also made from a bony product like that of modern-day cows. The horns most likely had a keratin sheet which would certainly have shielded them from fracturing. Both males and also females had horns, yet some professionals have actually supposed that they showed sex-related dimorphism in regards to dimension.

Arsinoitherium on a white background
Arsinoitherium’s horns were hollow.

Warpaint/Shutterstock. com

Diet– What Did Arsinoitherium Eat?

Arsenoitherium was a searching herbivore. Nonetheless, going by the specialized tooth layout and also jaw muscle mass, palaeontologists assume it had a discerning diet. It might have consumed cumbersome fruits and also lawns that were plentiful in the Fayoum Sanctuary website in Egypt, where it was located.

Environment– When and also Where It lived

Participants of the Arsinoitherium genus were huge, sluggish- relocating creatures. The commonly- held idea is that they resided in swamps and also semi- water locations like modern-day hippos. Their forelimbs were adjusted for drawing highly backwards rather than turning ahead. This function is normal of animals that have a tendency to draw themselves with superficial water, marshlands and also various other types of sticky ground.

The majority of the fossils located until now remained in debris a measure of a seaside overload atmospheres or cozy, damp reduced- land woodlands with a great deal of plant life. The Arsinoitherium was among the biggest creatures in Africa and also the Arabian Peninsula from the Late Eocene right into the Center Oligocene.

Dangers And Also Predators

Taking into consideration the huge dimension of these creatures, they did not have any type of significant predators that can exploit them. Researchers assume Arsinoitherium’s arm or legs weren’t adjusted for scooting due to the fact that it really did not need to run because it did not have any type of killer that would certainly assault it.

Discoveries and also Fossils– Where It Was Found

Paleontologists located the initial fossils of Arsinoitherium in the Jebel Qatrani development in the Fayum Sanctuary of Egypt. This website had total skeletal systems of this animal in Late Eocene to Very early Oligocene debris.

Paleontologist H. L. Beadnell found the fossil in 1901 and also appointed the name Arsinoitherium zitteli to it concerning a year later on. The genus Arsinoitherium implies Arsinoe’s Monster, a recommendation to Queen Arsinoe I of Egypt. A. zitteli is the very best- recognized species in this genus.

A more recent and also bigger species was found extra lately. In 2004, paleontologists operating in the Chilga area of Ethiopia found brand-new fossils coming from a species ofArsinoitherium Based upon tooth contrast, the freshly- found species was about 25% bigger than A. zitelli It obtained the name Arsinoitherium giganteus

Along with these significant finds, paleontologists have actually located a number of fossil pieces (primarily teeth) that come from an unpredictable species in the genus. researchers have actually located fossil pieces of this unclear specie of Arsinoitherium in different areas throughout Africa and also the Center East.

Termination– When Did Arsinoitherium Pass Away Out?

Arsinoitheriums came to be extinct concerning 27 million years earlier. Like the majority of the various other big creatures that lived at the time, researchers have actually supposed that environment adjustment was the significant root cause of their termination.

Extreme adjustments in weather problems throughout the Late Eocene brought about a disturbance of Arsinoitherium’s environment. The climate changed from warm and also damp to a much cooler one. This brought about the loss of their damp forested environment and also the increase of meadows and also savannahs, which is currently popular in a lot of components of Africa.

A couple of Arsinoitherium endured within a tiny variety of forested atmospheres for some time. Nonetheless, as the air conditioning lingered, meadows spread out throughout Northern Africa. By the Center Oligocene, the Arsinoitherium had actually shed their environment and also food resource entirely, resulting in their loss.

Comparable Animals To Arsinoitherium

Comparable animals to Arsinoitherium consist of:

  • White Rhinoceros— This 2- horned animal is the 2nd biggest animal ashore and also at full throttle can surpass 30 miles per hr.
  • Elephant— Along with being just one of the most intelligent animals on earth, elephants are additionally among the greatest as they can lug as much as 7 heaps.


  1. Fossil Guy, Available here:
  2. Britannica/The Editors of Encyclopaedia, Available here:
  3. Wikipedia, Available here:

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