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User:Ashorocetus/sandbox/Paraspheroolithus

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Ashorocetus/sandbox/Paraspheroolithus
Temporal range: Late Cretaceous
Egg fossil classification Edit this classification
Basic shell type: Dinosauroid-spherulitic
Oofamily: Spheroolithidae
Oogenus: Paraspheroolithus

Spheroolithus irenensis is an oospecies of dinosaur egg whose classification has a somewhat confused history, as it is sometimes considered to be the sole oospecies of its own oogenus, Paraspheroolithus.[1]

Description

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Paraspheroolithus is separated from Spheroolithus because its eggs are more ellipsoidal, whereas Spheroolithus eggs are spherical. Many authors do not consider this sufficient basis to separate oogenera, because even within a single clutch, the elongation index of eggs can vary significantly.[2]

History

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The eggs now known as Paraspheroolithus were discovered in... The oospecies Paraspheroolithus irenensis was first named in

See also

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References

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  1. ^ Wang Q, Wang X L, Zhao Z K, and Jiang Y G. (2012). "A new oofamily of dinosaur egg from the Upper Cretaceous of Tiantai Basin, Zhejiang Province, and its mechanism of eggshell formation" Chinese Science Bulletin. 57: 3740-3747. doi: 10.1007/s11434-012-5353-2
  2. ^ Cite error: The named reference Mikhailov 1997 was invoked but never defined (see the help page).