It is the only specimen lacking preserved feathers. The single female specimen (the holotype) was collected somewhere in Venezuela. Diagnosis of campylobacteriosis is made by testing a fecal specimen. In 2012, bite marks on two gastralia of the holotype specimen were reported. A bonsai is created beginning with a specimen of source material. Limpet tooth structure is dependent upon living depth of the specimen. The largest specimen recorded measured long and weighed almost . This illustration was apparently ultimately based on a skeletal specimen and mummies. This is determined by the quantity of chloroplasts of the specimen. Further study indicates an age of 18 for this specimen. The stones match rock from away from where the specimen was found. The longest recorded specimen measured in total length (including tail). Not every adult "Tyrannosaurus" specimen recovered is as big. The status of a Borneo specimen from Sampit remains unclear. An empirical relationship gives a tensile strength of for this specimen.