An interesting photo. Of course, it could as easily be made of rubber or ceramic, but the whole presentation has a feel of authenticity--as a good hoax would, too, of course. For this reason, we cannot grade this A, but we can give it a grade of B until and if evidence of a hoax emerges.
Werner Herzog was allowed to film 6 days in Chauvet Cave, which was discovered in southern France in 1994. Many of the creatures depicted in the cave could only be found thousands of miles south, in central Africa, when the paintings in the cave were created 24,000 to 32,000 years ago, and some of them are of creatures entirely unknown. The public is not allowed in the cave due to the fragility of the art, and the film's release next April is one of the first extensive showings of its contents.
They come in like this every day from all over the world. Once, this story would have stunned the entire planet. Now, it's completely ordinary. Why? Because we have no idea what they are, and we've lost interest in the secret! Well done, visitors, you've got what you want: total openness and complete secrecy.