Himeoolithus

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

Ankadya: NyamaMadino odya nyamaKumayambiriro kwa Kretase

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

Ankakhala

zaka 113 mpaka 110 miliyoni zapitazo3

Kumayambiriro kwa Kretase

Mafosili apezeka ku

Kamitaki Egg Quarry, Hyogo Prefecture, Japan3 2

Liwiro lalikulu kwambiri

pafupifupi 47 km/h (29 mph)

Kuthamanga, kuyerekeza

Ankakhala liti?

Triasiki

Jurasiki

Kretase

Zaka 252 miliyoni zapitazo20114566, asteroidi

Anali ndi liwiro lotani?

Munthu akuyenda pafupifupi 5 km/h (3 mph)

Mwana pa njinga pafupifupi 12 km/h (7 mph)

Himeoolithus pafupifupi 47 km/h (29 mph)

Hatchi ikuthamanga pafupifupi 65 km/h (40 mph)

Kakwiyo pafupifupi 100 km/h (62 mph)

zinthu zosangalatsa

Mfundo zosangalatsa

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

Chithunzi cha Himeoolithus chopangidwa ndi AI — Chithunzi cha momwe Himeoolithus mwina ankaonekera, chopangidwa ndi kompyuta kuchokera pa zomwe asayansi amadziwa. Ndi kungoyerekeza: nyama yeniyeniyo mwina inkaoneka mosiyana, ndipo palibe amene akudziwa mitundu yake yeniyeni.

Wothetsa nthano zabodza

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

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

Kwa akatswiri a madino

Dzina la sayansi: Himeoolithus
Anapatsidwa dzina ndi: Tanaka et al. 20203
Gulu: Madino odya nyama
Banja / kladi: Theropoda3
Magawidwe a sayansi: Theropoda3
Zaka za miyala: zaka 113 mpaka 110 miliyoni (Albian)3
Mapangidwe a miyala: Ohyamashimo3
Mayiko: Japani3
Zolemba za mafosili: 1 mu The Paleobiology Database3
Kupezeka: 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
Akukambiranabe: Scientists are not sure exactly which theropod dinosaur laid the eggs, since no bones of the adult have been found yet.2

Kumene mfundo zimachokera

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): zaka, malo, mapangidwe a miyala, magawidwe a sayansi.

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