Hemifaveoloolithus
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| Hemifaveoloolithus Temporal range: | |
|---|---|
Egg fossil classification  | |
| Basic shell type: | †Dinosauroid-spherulitic |
| Oofamily: | †Faveoloolithidae |
| Oogenus: | †Hemifaveoloolithus Wang et al., 2011 |
| Oospecies | |
| |
Hemifaveoloolithus is an oogenus of fossil dinosaur egg from the Tiantai basin in Zhejiang Province, China. It is a faveoloolithid, having spherical eggs roughly 13 cm in diameter. The shell is distinctive for being composed of four or five superimposed layers of shell units, and the honeycomb-like arrangement of pore canals.[1]
During the 21st century, a great diversity of fossil eggs have been described from the Tiantai Basin. In 2011, paleontologists at the Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences Wang Qiang, Zhao Zikui, and Wang Xiaolin teamed up with Jiang Yan'gen from the Tiantai Bureau of Land and Resources of Zhejiang Province to report the discovery of several new ootaxa at Tiantai, including Hemifaveoloolithus.[1]
Distribution
Hemifaveoloolithus is one of many ootaxa known from Tiantai County in Zhejiang. It is found in the Upper Cretaceous Chichengshan Formation,[1] which was dated to be 91–94 million years old (during the Turonian) by using U-Pb dating.[2]