Following are items that are in the files but are linked to a technology that does not exist in the technology tree. They are divided up by Ship Components, Planetary Improvements, and Starbase Modules.
The first item is the internal name of the component, improvement, or module. The second item (after the first dash) is the technology it is linked to currently. If there is a third item then it is the correct spelling of that technology (in many case there were either space in one version and not the other).
Ship Components
Superior Duranthium - Superior Duranthium
Subspace Rebounder - Shields IV *
Dynamic Shielding - Barriers IV *
TinyHull0 - Xeno Industrial Theory - XenoIndustrialTheory
SmallHull1 - Xeno Industrial Theory - XenoIndustrialTheory
Sensors4 - Sensor4 *
Sensors5 - Sensor5 *
Planetary Improvements
Extended Farming - Xeno Farm Construction IV *
UltraFarming - Xeno Farm Construction V *
Manufacturing Capital - Xeno Industrial Theory - XenoIndustrialTheory
PolitcalCapital - Star Democracy - StarDem
PropagandaMachine - XenoPropaganda **
AntiMatterPowerPlant - Anti-Matter Power **
Zero G Sports Arena - Zero G Sports Arenas - ZeroGSportsArena
NanoRecorders - Sensors2 - Sensor2
PainAmplifiers - Medical Theory **
GalStockExchange - AdvancedTrade - Advanced Trade or Galactic Stock Exchanges ***
GalMonument - StarFederation - StarFed
HistoricalPreserve - ArtificialSatellites **
HyperDistributionCenter - CulturalConquest - Cultural Conquest
LifeForcePower - TheDarkSide **
Starbase Modules
DevistationBeam - Subspace Ripper - Subspace Annihilator
RelationsCenter - Universal Translator - UniversalTranslator
* Means that the chain ended prior to this technology (i.e. the Xeno Farm Construction chain only goes upto III)
** No such technology exists nor is there an obvious replacement.
*** Advanced Trade is the obvious placement however it doesn't make as much sense as Galactic Stock Exchanges