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ELONGATOOLITHUS

Elongatoolithus

Fossil dinosaur eggs

Elongatoolithus is an oogenus of dinosaur eggs found in the Late Cretaceous formations of China and Mongolia. Like other elongatoolithids, they were laid

Elongatoolithus

2026 in archosaur paleontology

Cretaceous Dengta Basin (Guangdong, China), assigned to the ootaxon Elongatoolithus elongatus, is described by Wang et al. (2026). A study on the biomechanics

2026 in archosaur paleontology

2026_in_archosaur_paleontology

Elongatoolithidae

Oofamily of dinosaur eggs

he created a new oogenus for "Oolithes" elongatus: Elongatoolithus. He classified Elongatoolithus and another new oogenus Macroolithus into a new oofamily

Elongatoolithidae

Lianhe Formation

Geologic formation in Jiangxi, China

Genus Species Location Stratigraphic position Material Notes Image Elongatoolithus E. elongates Likely laid by oviraptorosaurs Macroolithus M. rugustus

Lianhe Formation

Lianhe_Formation

Egg fossil

Fossilized remains of eggs laid by ancient animals

Tubercuoolithus Oofamily Elongatoolithidae Continuoolithus Ellipsoolithus Elongatoolithus Heishanoolithus Macroelongatoolithus Macroolithus Nanhsiungoolithus

Egg fossil

Egg_fossil

Wangshi Group

Geological group in Shandong, China

Jingangkou Formation of the Wangshi Group. Saurischia Elongatoolithidae Elongatoolithus elongatus Neornithischia Ovaloolithidae Ovaloolithus chinkangkouensis

Wangshi Group

Wangshi_Group

Gannanoolithus

Oogenus of dinosaur egg

Macroelongatoolithus carlylei Macroelongatoolithus xixiaensis Egg of Beibeilong Egg of small oviraptorids Elongatoolithus elongatus Macroolithus rugustus

Gannanoolithus

Paleobiota of the Djadochta Formation

Geological formation in Mongolia

skeletons, an embryo, eggs and nesting individuals." An oviraptorid. Elongatoolithus E. frustrabilis E. subtitectorius Khaan K. mckennai Ukhaa Tolgod "Several

Paleobiota of the Djadochta Formation

Paleobiota_of_the_Djadochta_Formation

Dinosaur egg

Vessel for dinosaur embryo development

Continuoolithus Dendroolithus Dictyoolithus Dispersituberoolithus Ellipsoolithus Elongatoolithus Faveoolithus Heishanoolithus Laevisoolithus Macroolithus Macroelongatoolithus

Dinosaur egg

Dinosaur_egg

Macroolithus

Oogenus of dinosaur egg

parataxonomic system parallel to Linnaean taxonomy. Macroolithus, Elongatoolithus, and Nanhsiungoolithus were the first oogenera ever named in this system;

Macroolithus

Nipponoolithus

Dinosaur egg

in size from 27 grams (0.95 oz) to 135 grams (4.8 oz)), including Elongatoolithus, Prismatoolithus (and other indeterminate prismatoolithids), as well

Nipponoolithus

Protoceratops

Genus of Dinosaur (fossil)

1975, the Chinese paleontologist Zhao Zikui named the new oogenera Elongatoolithus and Macroolithus, including them in a new oofamily: the Elongatoolithidae

Protoceratops

Ohyamashimo Formation

Geologic formation in Japan

Genus Species Location Stratigraphic position Material Notes Images Elongatoolithus E. sp. Kamitaki Bonebed Quarry, Tamba Likely laid by oviraptorosaur

Ohyamashimo Formation

Ohyamashimo_Formation

Styloolithus

Oogenus of fossil egg

representing an external zone). It lacks shell ornamentation, unlike Elongatoolithus and Macroelongatoolithus. The eggs are interesting because of the possible

Styloolithus

Beibeilong

Caenagnathid dinosaur genus from the Late Cretaceous

species. Small-bodied oviraptorosaurs (such as oviraptorids with small Elongatoolithus eggs) arranged their nests in a tightened ring-like fashion packed

Beibeilong

Nanhsiungoolithus

Fossil dinosaur eggs

oogenus in the oofamily Elongatoolithidae. Along with Macroolithus and Elongatoolithus, it was the first oogenus ever given a formal parataxonomic name; it

Nanhsiungoolithus

Continuoolithus

Dinosaur egg

North Horn Formation. She classified it as a distinct type within Elongatoolithus. However, this oospecies is indistinguishable from C. canadensis, so

Continuoolithus