Elephant bird "A. maximus" and "D. stirtoni" were revised to 540 and 730 kg, respectively. Four species are usually accepted in the genus "Aepyornis" today, but the validity of some is disputed, with numerous authors treating them all in just one species, "A. maximus". Up to three species are generally included in "Mullerornis". Several ratites outside of Madagascar have been posited as "aepyornithid"-like and could potentially make this clade considerably more speciose. These include "Eremopezus" from the Eocene of North Africa, unnamed Canary Island remains and several Neogene taxa in Eurasia. "Aepyornis maximus" is commonly known as the 'elephant bird', a term
Joint Services Expedition to Elephant Island Joint Services Expedition to Elephant Island The Joint Services Expedition to Elephant Island was a British scientific surveying and mountaineering expedition to Elephant Island in the South Shetland Islands of Antarctica. It took place from December 1970 to March 1971. Except for one civilian from the British Antarctic Survey, the 14 participants were serving members of the British Armed Forces under the leadership of Commander Malcolm Burley of the Royal Navy. The expedition was sponsored by the Joint Services Expedition Trust with the aim of climbing, exploring and carrying out a preliminary scientific survey of islands in the Elephant group