The addon you are trying to download is not available on IndieDB. Only files related to content released on IndieDB are listed. Download Spined Terrors Pack on ModDB.
We recommend you return to the download list and browse the links from there.
Spined Terrors Pack
JPHL
Jurassic Park
Jurassic Park Hunter Legends
Acrocanthosaurus
Ichthyovenator
Ostafrikasaurus