Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Name | Novelty | Status | Authors | Location |
| --- | --- | --- | --- | --- |
| Criocephalosaurus | gen nov | Valid | Kammerer & Sidor | South Africa |
| Kitchinganomodon | Gen nov | Valid | Maisch | South Africa |
| Kwazulusaurus | gen et sp nov | Valid | Maisch | South Africa |
| Lanthanocephalus | gen et sp nov | Preoccupied | Modesto, Rubidge, & Welman | South Africa |
| Neotrirachodon | gen et sp nov | Valid | Tatarinov | Russia |
| Ruhuhucerberus | gen et sp nov | Valid | Maisch | Tanzania |
| Titanogorgon | gen nov | Valid | Maisch | Tanzania |
Question:
What is Authors, when Novelty is Gen Et Sp Nov, and when Name is Lanthanocephalus?
Answer:
Modesto, Rubidge, & Welman