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Giant theropod eggs from Cretaceous of South Korea



From: Ben Creisler
bcreisler@gmail.com


Historical Biology 26 (2) is a Special Issue: Fifth International
Symposium on Dinosaur Eggs and Babies.
http://www.tandfonline.com/toc/ghbi20/current#.UzrScPldXeJ

Most papers had an earlier online publication already mentioned on the
DML. However, the following is new:

Min Huh, Bo Seong Kim, Yeon Woo, D. Jade Simoc, In Sung Paik & Hyun
Joo Kim (2014)
First record of a complete giant theropod egg clutch from Upper
Cretaceous deposits, South Korea.
Historical Biology: 26(2): 218-228
DOI:10.1080/08912963.2014.894998
http://www.tandfonline.com/doi/full/10.1080/08912963.2014.894998#.UzrR1vldXeI

Here, we report the first occurrence of a complete
Macroelongatoolithus clutch from outside of China. Excavated from
Upper Cretaceous strata of Aphae-do in Shinan-gun, Jeollanam-do
Province, South Korea, the clutch of 19 eggs is characterised by
large, elongate, symmetrical eggs arranged in a single-layered
ring-shaped clutch. Eggs are inclined towards the centre of the 2.3-m
diameter clutch, and average 41.17 cm long and 15.58 cm wide. Of the
19 eggs, 8 clearly retain a paired configuration. This specimen
represents only the second report of large theropod eggs from South
Korea and is the most complete Macroelongatoolithus clutch known from
the region to date. Eggshell microstructural features are consistent
with Macroelongatoolithus xixiaensis (oofamily Elongatoolithidae),
previously known only from Cenomanian strata of southeastern China.
This first record of a giant theropod egg clutch, here assigned to M.
xixiaensis, extends the stratigraphic and paleogeographic range of
Macroelongatoolithus eggs and parent animals to include the Campanian
of South Korea.

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