Genre
Taxon formel Éteint

Macroolithus

Zhao 1975

Macroolithus is an oogenus of dinosaur egg belonging to the oofamily Elongatoolithidae. The type oospecies, M. rugustus, was originally described under the now-defunct oogenus name Oolithes. Three other oospecies are known: M. yaotunensis, M. mutabilis, and M. lashuyuanensis. They are relatively large, elongated eggs with a two-layered eggshell. Their nests consist of large, concentric rings of paired eggs. There is evidence of blue-green pigmentation in its shell, which may have helped camouflage the nests.

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Plage temporelle
Trias
Jurassique
Crétacé
Paléogène
Néogène
252 201 145 66 0 Ma
Occurrences PBDB
51
Groupe
Dinosaures
Carnivore Vivant au sol, solitaire Terrestre
Macroolithus
cliquer pour agrandir
A pair of Macroolithus yaotunensis eggs. Specimen number NMNS CYN-2004 DINO-05, housed in the National Museum of Natural Sciences, Taichung, Taiwan. © Wiemann et al. · CC BY-SA 4.0 · Wikimedia

Légende en anglais — traduction française non disponible.

PBDB Wikipedia
Classification
Dinosauria Clade non classé
Theropoda Clade non classé
Elongatoolithidae Famille
Macroolithus Genre
Sites de découverte 51 sites géolocalisés
Répartition
Principaux pays
🇨🇳 Chine
43
🇲🇳 Mongolie
6
🇪🇸 Espagne
1
🇰🇿 Kazakhstan
1
Formations géologiques
Zhutian
9
Zhenshui
7
Yuanpu
6
Nemegt
4
Nanchao
1
Dongyuan
1
Distribution temporelle
Maastrichtien (72.2–66 Ma)
32
Campanien (83.6–72.2 Ma)
18
Hauterivien (132.6–125.77 Ma)
1
Espèces (4)
Macroolithus lashuyuanensis 84 Ma
Macroolithus mutabilis 84 Ma
Macroolithus rugustus 84 Ma
Macroolithus yaotunensis 86 Ma
Bibliographie
Description originale
Z.-K. Zhao. 1975. [The microstructures of the dinosaurian eggshells of Nanxiong Basin, Guandong province. (1) On the classification of dinosaur eggs]. Vertebrata PalAsiatica 13(2):105-117
Bibliographie (15)
X. Jin, D. J. Varricchio, and A. W. Poust, T. He. 2020. An oviraptorosaur adult-egg association from the Cretaceous of Jiangxi Province, China. Journal of Vertebrate Paleontology 39(6):e1739060:1-16 DOI ↗
Q. He, Q. Jiang, and L. Xing, S. Zhang, W. Pang, H. Hu, S. Lu, Q. Yin. 2019. Geochemical characteristics of newly discovered Elongatoolithidae eggs from the Upper Cretaceous of Jiangxi Province, southern China: palaeoenvironmental and palaeoclimatic inferences. Cretaceous Research 99:352-364 DOI ↗
D. J. Simon, D. J. Varricchio, and Z. Jin, S. F. Robison. 2019. Microstructural overlap of Macroelongatoolithus eggs from Asia and North America expands the occurrence of colossal oviraptorosaurs. Journal of Vertebrate Paleontology 38(6):e1553046:1-16 DOI ↗
X. Fang, P. Li, and Z. Zhang, X. Zhang, Y. Lin, S. Guo, Y. Cheng, Z. Li, X. Zhang, Z. Cheng. 2009. [Cretaceous strata in Nanxiong Basin of Guangdong and the evolution from the dinosaur egg to the bird egg]. Acta Geoscientia Sinica 30(2):167–186
Y.-n. Cheng, Q. Ji, and X.-c. Wu, H.-y. Shan. 2008. Oviraptorosaurian eggs (Dinosauria) with embryonic skeletons discovered for the first time in China. Acta Geologica Sinica 82(6):1089-1094 DOI ↗
J. M. Gasca, J. I. Canudo, and M. Moreno-Azanza. 2007. Restos de dinosaurios de la Formación El Castellar en Miravete de la Sierrra (Cretácico Inferior, Teruel, España) [Dinosaur remains from the El Castellar Formation at Miravete de la Sierra (Lower Cretaceous, Teruel, Spain)]. IV Jornadas Internacionales sobre Paleontología de Dinosaurios y su Entorno, Salas de los Infantes, Spain
X. Fang, Z. Zhang, and X. Zhang, L. Lu, Y. Han, P. Li. 2005. [Fossil eggs from the Heyuan Basin, east-central Guangdong, China]. Geological Bulletin of China 24(7):682–686
K. E. Mikhailov. 2000. Eggs and eggshells of dinosaurs and birds from the Cretaceous of Mongolia. The Age of Dinosaurs in Russia and Mongolia
Y. Ariunchimeg. 1997. Results of studies of dinosaur eggs. Abstract of Report Meeting, Mongolia-Japan Joint Paleontological Expedition
S. G. Lucas, E. G. Kordikova, and R. J. Emry. 1995. Upper Cretaceous-Paleocene stratigraphy and vertebrate paleontology in the Zaysan Basin, Kasakhstan. Journal of Vertebrate Paleontology 15(3, suppl.):41A
D. Wang and S. Zhou. 1995. [The discovery of new typical dinosaur egg fossils in Xixia Basin]. Henan Geology 13(4):262-267
Y. Dauphin. 1994. Comparaison des microstructures et de la composition chimique de coquilles d'oeufs fossiles du Sud de la France, de quelques specimens d'Asie et d'oiseaux actuels. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 194(1):55-71
K. E. Mikhailov. 1994. Theropod and protoceratopsian dinosaur eggs from the Cretaceous of Mongolia and Kazakhstan. Paleontological Journal 28:101-120
Z. Zhao, J. Ye, and H. Li, Z. Zhao, Z. Yan. 1991. Extinction of the dinosaurs across the Cretaceous-Tertiary boundary in Nanxiong Basin, Guangdong Province. Vertebrata PalAsiatica 29(1):1-20
C.-C. Young. 1965. [Fossil eggs from Nanshiung, Kwangtung and Kanchou, Kiangsi]. Vertebrata PalAsiatica 9(2):141-170