This video from South Africa says about itself:
Dinosaur find in Knysna
6 February 2017
Ben Ingel, a learner at Oakhill School, found the tooth of a 120 million year-old dinosaur.
Video Elaine King, Knysna-Plettt Herald.
Read more here.
From eNCA.com in South Africa:
Grade 8 pupil discovers tooth of dinosaur in Knysna
Wednesday 8 February 2017 – 5:33am
JOHANNESBURG – Knysna has landed itself prominently on the archaeological map.
Thirteen-year-old Grade 8 pupil, Benjamin Ingel discovered a tooth there — and it very likely comes from a dinosaur.
Ingel reportedly found the tooth while walking near Knysna lagoon. He brought it home to show his family.
Ingel’s grandfather, Vernon Rice, approached some experts to verify the authenticity of the find. Geologists Rob Muir and Roger Schoon agreed to come to his house to have a look.
Rice said: “They took one look and I could see from their faces we had something.”
Choiniere believes the dinosaur weighed between 500kg and a ton.
“This was a meat-eater of considerable size; his head would bump on the ceiling of my house,” said palaeontologist Dr Billy de Klerk, who has also seen the tooth.
“These teeth are so rare that in a span of 30 years I have only seen 15 decent teeth,” De Klerk added.
Ingel is prepared to donate the tooth to a museum after he shows it to his friends at school.
Probably, the teeth belongerd to an individual of the Allosaurus family.