As a studbook keeper, they didn't gave up on the species and we will have a chance to see those magnificent animals in Europe, longer than expected.
To be fair until recently the sole reason for the Gaur EEP to exist was to phase them out and Paris (and Obterre) did not breed them anymore. Only Cabarceno and Zlin ignored the phase out and will probably be to thank that this species still has a future in Europe...
with almost the entire Kordofan giraffe population originating here, plus an excellent record with Okapi and Asian elephants (both no longer held).
Nearly half of the Kordofan giraffe founders were in Antwerp, so that statement is not true. I would also disregard the record that the zoo has with species they no longer keep... If you stick to ungulates either Basel or Paris still has, Basel would beat Paris being pivotal in establishing Somali wild ass on the continent, as well as the excellent breeding record of greater one-horned rhino and the long and very successful history with pygmy hippo and lesser kudu.
Paris doesn't really shine in this category. I don't think any of the ungulate exhibits in the Menagerie is particularly convincing for their inhabitants, with basically all of them being on the small side of acceptable, but it is undeniably a lovely looking setting. The Zoo in Vincennes also didn't convince me for the most part, with some enclosures being fairly small too (tapir & peccary come to mind). The star is undeniably the large giraffe enclosure shared with greater kudu and mhor gazelle (and pinioned birds, so Paris is lucky they don't count for this category...).
But Basel has problems of it's own, as you will see:
The pygmy hippo exhibit is very nicely landscaped, but upon closer inspection it is tiny. Structure cannot always compensate for lack of space:
Next to the pygmy hippo is a well-structured enclosure for greater one-horned rhino, which is shared with muntjac & Visayan warty pig:
The architecturally wonderful antelope house houses Kordofan giraffe in the middle and okapi & lesser kudu to the sides:
The outdoor enclosures for all 3 species are on the small side, with 2 okapi enclosures:
For the giraffes:
(this shows only a part, there is no picture showing the whole enclosure)
The best enclosure here is for the lesser kudu:
Enclosure for sable antelope:
Somali wild ass:
Enclosure for Grant's zebra & ostrich:
When weather allows the common hippo use this enclosure (pool is quite large too) at night, leaving them plenty of land space.
The adjacent common hippo exhibit:
There are no pictures of the American bison & wild boar exhibits in the gallery, both have simple, but spacious enough exhibits in a secluded woody corner of the zoo:
The elephant enclosure is among the newest in the zoo. Basel style it is not particularly large, but especially outdoors it is well structured with feeding stations all over the place:
@Philipine eagle
So while not the strongest category for Basel, it is not a particular weak point either. But Paris has enough to offer too. I am not sure which 3-2 is the best way to vote, as it is a fairly close match.