"BONE-CRUSHING BEAR-DOG" PHALANX TOE BONE
Suwannee River, Florida, U.S.A.
EARLY MIOCENE PERIOD:
20 - 18 million years ago
Of all the fascinating
fauna of prehistoric Florida that we could offer fossil specimens of, this
horrific and ferocious beast ranks as one of the most recommended as it is
not only rare and bizarre, but its entire family lineage emerged and then
went completely extinct during the Miocene Period. This valuable
specimen dates back to the ARIKAREEAN AGE, a term used in the scientific
community as part of the North American Land Mammal Ages (NALMA).
These ages represent periods on the geologic time scale as they relate to
this type of fauna.
This is a very large
phalanx toe bone from the giant bone-crushing bear-dog Amphicyon
longiramus. In the Early Miocene of Florida, no animal was more
deadly. This mammal was the apex predator of its time and had no
equal. Never before have we been fortunate to offer ANY fossil from
this rare and little known about beast. It is likely you will never
see anyone offer specimens of this animal! Post-cranial
material from this predator is even more rare so this is one exotic
and rare fossil we must recommend to the advanced collector of choice and
unusual specimens! Entire
phalanx is intact with no damage or distortion. Surfaces are superb
and joints are like new and complete with posterior joint shown above in
the last image. NO REPAIR and NO RESTORATION.
Made famous in the BBC
digital television presentation "Walking with Prehistoric
Beasts", the bear-dogs were ferocious carnivores that ranged from the
size of a medium dog to the size of a bear. These predators known as
Amphicyonids were neither dogs nor bears but were more closely related to
bears. They emerged and subsequently went extinct during the
Miocene, once inhabiting regions of Eurasia and North America.
Amphicyonidae were a
diverse group with species resembling all or part of modern dogs, hyenas
and bears. Leaner built species had cheek teeth designed for
shearing meat whereas the stouter and larger species had teeth designed to
crush bone. Males were larger than females. They lived in dens
and had the ability to dig large burrows.
Amphicyon longiramus was
the largest of the Florida species at the size of a full-grown bear.
This species evolved in Eurasia and migrated to North America. A.
longiramus was the top predatory land mammal of its time in Florida during
the Early Miocene. Its skull was long in comparison to its body size
but brain size was lacking. Its posture and structure were similar
to a bear and it is theorized that it must have hunted using ambush
techniques that are used today by modern grizzlies. Most likely,
this giant bear-dog burst upon its unfortunate victim at close range and
dealt its prey a single deadly blow with its massive forepaw. This
theory of attack is also based on its relative the bear as it was incapable of sustaining long runs in pursuit of prey.
Compared to lighter species of Amphicyonids, Amphicyon longiramus had heavy
posterior dentition allowing it to crush bone in its jaws.
VERTEBRATE FOSSILS FROM THE EARLY MIOCENE OF FLORIDA ARE SUPER RARE AND
ONLY FOUND AT A HANDFUL OF SITES - EXOTIC AND VERY HIGHLY
BEAST WAS THE APEX PREDATOR OF FLORIDA IN THE EARLY MIOCENE AND HAD
INCLUDES DISPLAY BOX Actual
Item - One Only