Such defects are mainly the results of genetic disorders, but some teratogenic (or environmental) factors have been identified, such as the use of thalidomide from 1957 to 1962 for morning sickness (NVP).
Meromelia
Rhizomelia
Mesomelia
Sirenomelia
Dolichostenomelia
Phocomelia
Adiposogenital dystrophy
Loxoscelism