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Mesodma
Mesodma
is an extinct
genus
of
mammal
, a member of the extinct order
Multituberculata
within the suborder
Cimolodonta
, family
Neoplagiaulacidae
. It
lived
during the
upper
Cretaceous
and
Paleocene
Periods
of what is now
North America
.
Species
Mesodma ambigua
*Place: Mantua
Lentil
,
Wyoming
*Age: Maastrichtian-Puercan,
Upper Cretaceous
- Paleocene
*Weight: about 55 g
Mesodma
formosa
*Place:
Hell Creek
and
Frenchman Formation
, USA &
Canada
. This species is
possibly
also known from
Utah
.
*Age: Maastrichtian-Puercan.
*Weight: about
30
g
Mesodma hensleighi
*Place:
Hell Creek Formation
in the U.S. and in
Saskatchewan, Canada
.
*Age:
Campanian
.
*Weight: around
15
g
Mesodma primaeva
*Place: Montana and Wyoming
*Age: Campanian
Mesodma pygmaea
*Place: Gidley
Quarry
, Montana, as well as Wyoming and
Alberta, Canada
*Age: Torrejonian-Tiffanian.
*Weight: about 8 g
Mesodma senecta
*Age: Campanian
*Weight: about
50
g
Mesodma thompsoni
*Place:
St Mary River
Formation
& Montana and Wyoming of the
USA and Canada
*Age: Maastrichtian-Puercan, Upper Cretaceous - Paleocene
*Weight: about 55 g