Laevisoolithus
Temporal range: Maastrichtian
~70–66 Ma
Egg fossil classification Edit this classification
Basic shell type: Ornithoid
Morphotype: Ornithoid-ratite
Oofamily: †Laevisoolithidae
Oogenus: †Laevisoolithus
Mikhailov, 1991

Laevisoolithus is an oogenus of fossil egg.[1] Its sole oospecies, L. sochavai, is native to the Nemegt Formation in Mongolia. Laevisoolithus is characterized by its thin, smooth eggshells. These eggs were probably laid by a bird or a small theropod.[2]

References

edit
  1. ^ Carpenter, K. 1999. Eggs, Nests, and Baby Dinosaurs: A Look at Dinosaur Reproduction (Life of the Past). Indiana University Press, Bloomington, Indiana.
  2. ^ K. E. Mikhailov. 1991. Classification of fossil eggshells of amniotic vertebrates. Acta Palaeontologica Polonica 36(2):193-238


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Gobipteryx

Gobipteryx (from Gobi [referring to the Gobi Desert where it was first discovered], and Greek pteryx "wing") is a genus of prehistoric bird from the Campanian

Egg fossil

Spongioolithus Trachoolithus Undulatoolithus Oofamily Laevisoolithidae Laevisoolithus Subtiliolithus Tipoolithus Oofamily Medioolithidae Incognitoolithus

Nemegt Formation

J. nogontsavensis Nogon Tsav "Dorsal vertebra." A hesperornithine. Laevisoolithus L. sochavai "Whole egg with partly broken pole" Laid by a bird or small

Dinosaur egg

Dispersituberoolithus Ellipsoolithus Elongatoolithus Faveoolithus Heishanoolithus Laevisoolithus Macroolithus Macroelongatoolithus Megaloolithus Nanshiungoolithus Oblongoolithus

Subtiliolithus

a distinct oofamily, Subtiliolithidae, but numerous similarities to Laevisoolithus have led to their reclassification as Laevisoolithid eggs. A complete

Laevisoolithidae

Basic shell type: Ornithoid Morphotype: Ornithoid-ratite Oofamily: †Laevisoolithidae Mikhailov, 1991 Oogenera Laevisoolithus Subtiliolithus Tipoolithus

List of fossil bird genera

1997] †Laevisoolithidae Mikhailov 1991 [Subtiliolithidae] [ootaxa] †Laevisoolithus sochavai Mikhailov 1991 [ootaxa] †Subtiliolithus microtuberculatus Mikhailov

Macroolithus

Formation include Ovaloolithus, Spheroolithus, Elongatoolithus, and Laevisoolithus. M. mutabilis is known solely at the Ikh-Shunkht locality from the Barun