Himeoolithus

Hiika maqaa: “small egg stone, from Japanese 'hime' meaning small or pretty, and Greek 'oo' and 'lithos' meaning egg stone”1

Kan nyaate: FoonDaayinoowwan foon nyaatanKireetaashasii Jalqabaa

Himeoolithus was a tiny meat-eating dinosaur that lived in what is now Japan about 110 million years ago. It is known from its eggs, which are some of the smallest theropod eggs ever found, about the size of a quail egg. These eggs show that small dinosaurs lived alongside the giants!2

Kan jiraate

waggaa miliyoona 113 hanga 110 dura3

Kireetaashasii Jalqabaa

Fosiliiwwan kan itti argaman

Kamitaki Egg Quarry, Hyogo Prefecture, Japan3 2

Saffisa ol'aanaa

gara 47 km/sa'a (29 mph)

Fiiguu, tilmaama

Yoom jiraate?

Tiraayaasikii

Juraasikii

Kireetaashasii

waggaa miliyoona 252 dura20114566, asteerooyidii

Hammam saffisaa ture?

Nama miilaan deemu gara 5 km/sa'a (3 mph)

Daa'ima saayikilii irra jiru gara 12 km/sa'a (7 mph)

Himeoolithus gara 47 km/sa'a (29 mph)

Farda gulufu gara 65 km/sa'a (40 mph)

Cheetaa gara 100 km/sa'a (62 mph)

wantoota bareedoo

Odeeffannoowwan bashannansiisoo

Himeoolithus eggs are the smallest non-avian theropod eggs known, with an estimated mass of only 9.9 grams, about the size of a modern quail egg.1

The eggs are unusually elongated for their size, with a length-to-width ratio of 2.25, which is more typical of larger theropod eggs.1

The nest was found in place, not moved by water or wind, because most eggshell fragments were positioned concave-up, which happens when they break in place.2

Over 1,300 eggshell fragments from Himeoolithus were found at the Kamitaki Egg Quarry, along with other small theropod eggs.2

The high diversity of small theropod eggs at this site makes it one of the most diverse Early Cretaceous egg localities known.2

Fakkii AI'n hojjetame: Himeoolithus — Fakkii AI'n hojjetame kan Himeoolithus maal fakkaachuu akka danda'u agarsiisu, kompiitaraan beekumsa saayintistootaa irratti hundaa'uun hojjetame. Tilmaama qofa: bineensi dhugaa adda ta'ee mul'achuu danda'a, halluu isaa dhugaa immoo namni beeku hin jiru.

Seenaa sobaa diigaa

Seenaa sobaa: Some people think all dinosaurs were huge, but Himeoolithus shows that many were small.

Dhugaa: Himeoolithus eggs are tiny, and the dinosaur that laid them was likely small, showing that dinosaurs came in many sizes.2

Ogeeyyii daayinootiif

Maqaa saayinsii: Himeoolithus
Kan maqaa baase: Tanaka et al. 20203
Garee: Daayinoowwan foon nyaatan
Maatii / kilaadii: Theropoda3
Ramaddii: Theropoda3
Umurii dhagaawwanii: waggaa miliyoona 113 hanga 110 (Albian)3
Caasaawwan dhagaa: Ohyamashimo3
Biyyoota: Jaappaan3
Galmee fosilii: 1 The Paleobiology Database keessa3
Argannoo: The eggs were first discovered in 2015 at the Kamitaki Egg Quarry in Japan, and the species was named by Tanaka and colleagues in 2020.2 3
Ammallee falmisiisaa: Scientists are not sure exactly which theropod dinosaur laid the eggs, since no bones of the adult have been found yet.2

Odeeffannoon eessaa dhufa

Exceptionally small theropod eggs from the Lower Cretaceous Ohyamashimo Formation of Tamba, Hyogo Prefecture, Japan (sciencedirect.com)
Tiny Japanese Dinosaur Eggs Help Unscramble Cretaceous Ecosystem | Research News - University of Tsukuba (tsukuba.ac.jp)
Himeoolithus in The Paleobiology Database (CC BY 4.0): umurii, bakkeewwan, caasaawwan dhagaa, ramaddii.

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