In skyrim when you have to kill luah al skaven in ansilvund what is the correct line up of the animals on the pillars

In the final chamber there is a puzzle. The answer can be found by reading the book "Of Fjori and Holgeir". It is found on the table in that room. Also the answer is shown directly below each pillars on the ground level, obscured by weeds and other obstructions.

The order is:

Eagle

Snake

Whale

Snake

After entering Ansilvund excavation site a quest "Find & Kill Lu'ah Al-Skaven(A powerful witch)" will be given. When she is found she will awaken the ghosts of Fjori and Holgeir(2 powerful versions of Draugr Deathlord/Death overlord). After defeating all three of them Fjori and Holgeir's spirits will give "Ghostblade" as a reward. It can be taken from the pedestal on the alter.

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Tag: pillar 
Thursday, March 02 2017
Source: http://www.ign.com/wikis/the-elder-scrolls-5-skyrim/Ghostblade