Himeoolithus

Din no ase: “small egg stone, from Japanese 'hime' meaning small or pretty, and Greek 'oo' and 'lithos' meaning egg stone”1

Ɔdii: NamDino a wɔwe namKretasias Mfiase

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

Ɔtenaa ase

mfeɛ ɔpepem 113 kɔsi 110 a atwam3

Kretasias Mfiase

Wɔhunuu fɔsil wɔ

Kamitaki Egg Quarry, Hyogo Prefecture, Japan3 2

Ntɛmntɛm a ɛsen biara

bɛyɛ 47 km/h (29 mph)

Mmirikatuo, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Triasik

Jurasik

Kretasias

mfeɛ ɔpepem 252 a atwam20114566, ɔsoro ɛboɔ no

Na ɛyɛ ntɛm sɛn?

Onipa a ɔnante bɛyɛ 5 km/h (3 mph)

Abofra a ɔte sakre so bɛyɛ 12 km/h (7 mph)

Himeoolithus bɛyɛ 47 km/h (29 mph)

Ɔpɔnkɔ a ɔretu mmirika bɛyɛ 65 km/h (40 mph)

Kyiita bɛyɛ 100 km/h (62 mph)

nneɛma a ɛyɛ fɛ

Nsɛm a ɛyɛ anigye

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

Yei yɛ Himeoolithus mfonini a AI yɛeɛ, sɛdeɛ ebia na ɔteɛ. Kɔmputa na ɛyɛeɛ firi deɛ nyansahufoɔ nim mu. Ɛyɛ nsusuiɛ: ebia na aboa ankasa no nte saa, na obiara nnim ne kɔla ankasa.

Atosɛm sɛefoɔ

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

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

Ma dino ho animdefoɔ

Nyansahu din: Himeoolithus
Obi a ɔtoo din: Tanaka et al. 20203
Kuo: Dino a wɔwe nam
Abusua / kuo kɛseɛ: Theropoda3
Nkyekyɛmu: Theropoda3
Abotan no mfeɛ: mfeɛ ɔpepem 113 kɔsi 110 (Albian)3
Abotan nhyehyɛeɛ: Ohyamashimo3
Aman: Gyapan3
Fɔsil nkyerɛwee: 1 wɔ The Paleobiology Database mu3
Nhunumu: 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
Wɔda so gye ho akyinnye: Scientists are not sure exactly which theropod dinosaur laid the eggs, since no bones of the adult have been found yet.2

Baabi a nsɛm no firi

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): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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