Rygar included Zlandicar in his Raid Mob Drop History research:
Forum Post
Direct link to Google Sheet:
Spreadsheet Link
(I think mostly this post went nowhere, except for maybe the Vulak loot revamp, Idk. Final reply from Sunderfury asked us to open individual reports for each mob.)
Rygar's evidence showed 3-6 drops as typical from Zlandicar. Most oftenly 5 drops. (That's including the Heart and Tali as part of the 3-6. The heart isn't always mentioned as a drop, too, interestingly.)