Theory:Doctor Who television discontinuity and plot holes/City of Death

You are exploring the Discontinuity Index, a place where any details or rumours about unreleased stories are forbidden.
Please discuss only those whole stories which have already been released, and obey our spoiler policy.

This page is for discussing the ways in which City of Death doesn't fit well with other DWU narratives. You can also talk about the plot holes that render its own, internal narrative confusing.

Remember, this is a forum, so civil discussion is encouraged. However, please do not sign your posts. Also, keep all posts about the same continuity error under the same bullet point. You can add a new point by typing:

* This is point one.
::This is a counter-argument to point one.
:::This is a counter-argument to the counter-argument above
* This is point two.
::Explanation of point two.
::Further discussion and query of point two.

... and so on. 

• It's very unlikely a Human could withstand the earth's atmosphere 400 million years ago, yet Duggan, the Doctor or Romana do have a problem standing outside at that time.

Duggan, maybe, but the Doctor and Romana being Time Lords likely could. Another possibility is that the TARDIS was protecting them as well.

• How does the Doctor twice manage to direct the TARDIS to a specific point when the randomiser is installed?

The sentience of the TARDIS has been long established, too, so it might have known to bypass the randomizer.

• If the Countess has managed to go her entire married life without discovering that her husband is really a cycloptic, green-tentacled alien then either his skin suit is incredibly sophisticated to hold up to such intimate scrutiny, or their marriage is unconsummated.

Both are possibilities. It was only ever a marriage of convenience, and some aliens [including the Slitheen] have been seen to possess the ability to use "fully functional" human bodies as disguises.