Received: 31 May 2020
Accepted: 29 August 2020
First Online: 23 September 2020
Compliance with ethical standards
: The authors declare no competing interest.
: The collection of tissue samples and examination of the skull was carried out under the permission of the Bangladesh Forest Department. The skeletal remains, after examination, stay under the custody of the Amtali Range Office, an outpost of the Bangladesh Forest Department.