| 词条 | Parvoolithus |
| 释义 |
|fossil_range = {{fossil range|99.6|65|Late Cretaceous}} |taxon = Parvoolithus |authority = }}Parvoolithus is an oogenus of Mongolian fossil egg. They are known from a single small, smooth egg, which cannot be assigned to any known oofamily.[1] It is very similar to the eggs of modern birds in many aspects; in fact, a cladistic analysis by Zelenitsky and Therrien found it to be a sister taxon to the guinea fowl (genus Numida), indicating that they represent the eggs of birds, rather than a non-avialan theropod.[2] References1. ^Mikhailov, K.E. (1997). Fossil and recent eggshell in amniotic vertebrates: Fine structure, comparative morphology and classification. Special Papers in Palaeontology 56. The Palaeontological Association. London. (page 58). {{eggshell-stub}}2. ^Zelenitsky, D.K. and Therrien, F. (2008). Phylogenetic analysis of reproductive traits of maniraptoran theropods and its implications for egg parataxonomy. Palaeontology, 51(4): 807–816 1 : Fossil parataxa described in 1996 |
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