Scientist who went around proclaiming 27,000 species go extinct every year, can't/won't name a single one

To paraphrase Fox news, "Some scientists SAY that 25,000 - 50,000 species go extinct every year"

Consider: E.O. Wilson is an honorary board member of the Suzuki Foundation, who has claimed 27,000 species go extinct every year. Humorously (IMO), Wilson claims

"A good proxy for the rate of extinction is the rate of growth in energy used by the human population. In other words, extinction rates are increasing in step with the product of population growth times the growth in affluence."