X-Nico

Homer Jacobson

In 2007, he retracted two passages of this work after realizing that errors in his paper were being misread as evidence for creationism.

Supersolid

Prior to 2007, many theorists performed calculations indicating that vacancies cannot exist at zero temperature in solid helium-4.

Urbacodon

The type species, U. itemirensis, was named by Alexander Averianov and Hans-Dieter Sues in 2007 on the basis of a single left dentary with teeth from the Cenomanian Dzharakuduk Formation.

see also