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Janin seperti-kuda 48 - juta tahun ditemukan di Jerman
uteroplacenta terawatt baik ditemukan di sekitar janin mirip dengan kuda modern
Date:
October 7, 2015
Source:
PLOS
Summary:
janin equoid seperti - kuda 48 - juta tahun telah ditemukan di Messel pit dekat Frankfurt , Jerman menurut sebuah studi baru .
............ Para penulis studi ini menyelesaikan penyelidikan mereka dari janin equoid seperti-kuda 48 juta tahun ditemukan di dekat Frankfurt , Jerman pada tahun 2000. Mereka mengevaluasi tulang dan anatomi dan menggunakan pemindaian mikroskop elektronik ( SEM ) dan resolusi tinggi mikro - x - ray untuk menggambarkan ~ 12,5 cm janin .....more
48-million-year-old
horse-like fetus discovered in Germany
Well-preserved uteroplacenta found surrounding fetus similar to modern day
mares
Date:
October 7, 2015
Source:
PLOS
Summary:
A 48-million-year-old horse-like equoid fetus has been discovered at the
Messel pit near Frankfurt, Germany according to a new study.
.................
A 48 million year-old horse-like equoid fetus has been discovered at the
Messel pit near Frankfurt, Germany according to a study published October 7,
2015 in the open-access journal PLOS ONE by Jens Lorenz
Franzen from Senckenberg Research Institute Frankfurt, Germany, and
Naturhistorisches Museum Basel, Switzerland, and colleagues.
The authors of this study completed their investigation of the fetus from a
48 million year-old horse-like equoid uncovered near Frankfurt, Germany in
2000. They evaluated the bones and anatomy and used scanning electronic
microscopy (SEM) and high-resolution micro-x-ray to describe the ~12.5 cm
fetus.
The fetus appears to be well-preserved, with almost all bones present and
connected, except for the skull, which appears to have been crushed. The
well-preserved condition of the fossil allowed the researchers to reconstruct
the original appearance and position of the fetus. They estimate that the mare
may have died shortly before birth, but don't believe the death was related to
birth.
The authors also found preserved soft tissue, like the uteroplacenta and
one broad uterine ligament, which may represent the earliest fossil record of
the uterine system of a placental mammal. Applying SEM, the authors discovered
a bacterial lawn replacing the soft tissues, as is common with other specimens
found in that area. The observable details correspond largely with living
mares, which lead the authors to posit that the reproductive system was already
highly developed during the Paleocene, and possibly even earlier.
Story Source:
The above post is reprinted from materials provided by PLOS.Note: Materials
may be edited for content and length.
Journal Reference:
1.
Franzen JL, Aurich C, Habersetzer J. Description of a Well
Preserved Fetus of the European Eocene Equoid Eurohippus messelensis. PLoS
ONE, 2015 DOI:10.1371/journal.pone.0137985