А Барышников у Вас есть?

Свежак ,как Вам переслать, на сайт заливать не хочется только лично,сообщите как.

Все отправил сообщите о получении.

Ура я думаю удовольствие Вам обеспечено.

A UNIQUE GIGANTIC BEAR-DOG SKULL Та све-таки к какому семейству относиться Агриотерий? Эта находка черепа вроде из Китая ,и по размеру 51см это больше чем арктодус!
Agriotherium sp.
Miocene
Hezheng Hipparion Beds, Gansu Province, China
Agriotherium is a bear-like animal from the family Hemicyonidae. While commonly called "bear-dogs", hemicyonids were neither bears nor dogs. They had some characteristics of bears such as massive skulls and teeth and great strength, and some characteristics of dogs such as walking on their toes instead of flat-footed like modern bears. This mode of walking or running is called digitigrade and means that hemicyonids were fast, very active hunters unlike bears which are slow stalkers. The largest of all of the hemicyonids in prehistory is Agriotherium which measured 10 ft in length and weighed a ton or more, making them larger than any living bear. Indeed, Agriotherium may have been the largest terrestrial carnivore to have ever existed on the face of our planet. Because of its massive size and strength and excellent running ability, Agriotherium could have taken down anything short of an adult elephant, making it the "top carnivore" and undisputed 'king of beasts" of its Miocene world. Agriotherium was most likely a solitary hunter with a voracious appetite and incredible ferocity. It would've needed to consume incredible quantities of food in order to maintain its massive body weight since it would have burned huge amounts of energy speeding its massive body in the pursuit of numerous prey every day! With the body shape and speed of a tiger and size bigger than the largest modern polar bear ever recorded, Agriotherium must have been an awe-inspiring vision of death, and far more intimidating than anything in the modern world.

Agriotherium fossils are exceptionally rare and, through extensive research, it has been determined that this specimen is, very probably, the only complete upper skull, or cranium, ever found of this animal. Numerous skulls of its smaller cousin, Indarctos, have been found in various locations, but only one other very crushed specimen of an Agriotherium cranium is known. Indarctos skulls usually measure 14-16 inches in length whereas this specimen of Agriotherium measures 20 inches in length. The massive zygomatic arches at 12 inches across attest to the incredible jaw strength that this animal possessed. The bundles of jaw muscle would pass from the top of the cranium at the sagittal crest, through the zygomatic arches, and attach to the back of the lower jaws. The larger the gap formed by the zygomatic arches, the larger the jaw muscles---and this specimen has the widest and most robust zygomatic arches ever seen on any carnivore skull. Thus, Agriotherium had the strongest jaws of any carnivore past or present. Unfortunately, no lower jaw was found with this specimen so a cast of a lower jaw from Indarctos was made and magnified so that it would fit this massive cranium. The lower teeth are virtually identical between Agriotherium and Indarctos, so only a few technical adjustments were necessary to match the cast lower jaw to the cranium. There is restoration to approximately 10% of the bone surface, mainly to the right and left zygomatic arches, the top of the cranium, the sagittal crest and the tips of the canines. This superb specimen comes with a custom blacksmith-made steel stand and measures 20 inches long, 12 inches wide, and 15 inches high.

Агриотерий-урсид.

Иногда всех гемиционид причисляют к урсидам.

Кайл , Барышникова нет, а о чем именно он пишет?

Алекс рад что понравилась.информация ценнейшая.

Cynelos sinapius
Ischyrocyon gidleyi

Кайл, а реконструкции скелетов Cynelos lemanensis и Ischyrocyon gidleyi есть? У первого череп 44см , у второго  47см и он же являеться самым большим амфиционом!

А на каком основании медведя-агриотерия в этой теме вспомнили:-)? На самом деле, скорей всего, составители просто следовали какой-то из классификаций, указанных вверху. Ряд признаков агриотериев (в строении зубной системы и черепа) действительно общие с бамбуковым медведем, но  существенных отличий гораздо больше, к тому же предковые для панды формы с чертами характерной специализации уже существовали одновременно с агриотерием.