Under the new eligibility rules announced this week, transgender athletes are no longer required to be recognised by law in their new gender but only need to provide a "signed declaration" that they identify as female.
Sprinters Christian Coleman and Noah Lyles, pole vaulter Sam Kendricks, triple jumper Christian Taylor and 800m runner Donavan Brazier are all on the list.
Kosgei broke the mark of 2:15:25 set by Radcliffe in the London Marathon on April 13, 2003 as she won in Chicago for the second straight year.
With an unofficial time of 1hr 59min 40.2sec, the Olympic champion became the first ever to run a marathon in under two hours in the Prater park with the course readied to make it as even as possible.
Farah claims he has been unfairly singled out in the scandal surrounding his former coach Alberto Salazar.
The US sportswear giant had initially backed Salazar's plans to appeal against the decision after the 61-year-old Cuban-born American denied the allegations.
Black was in charge when UK Athletics appointed Salazar as a consultant to its endurance programme in 2013. He had previously described Salazar as a "genius".
Salazar was last week banned for four years, in the middle of the World Athletics Championships, following a four-year investigation by the US Anti-Doping Agency (USADA).
The 10-day competition came to a glorious end in Doha on Sunday.
IAAF chief Sebastian Coe hails Doha Worlds as the best ever.
Doha Worlds Organising Committee Chairman HE Sheikh Joaan handed over the baton to Kate Brown, the governor of Eugene which will host 2021 championships.
Joshua Cheptegi of Uganda won the 10,000m gold with a superb finish.
Even more African supporters would have been able to attend if not for the championships' late start times.
The 29-year-old led home an Ethiopian 1-2 with Mosinet Geremew taking silver, while Kenya's Amos Kipruto finished third.
Kenya's Hellen Obiri bags her second consecutive world title in 5000m.