Which reptile subgroup is considered extinct?

Anapsid
Diapsid
Synapsid
None of the above are extinct
Synapsids were the largest terrestrial vertebrates in the Permian period, 299 to 251 million years ago, although some of the larger pareiasaurs at the end of Permian could match them in size.
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Answers by country

Anapsid
Diapsid
Synapsid
None of the above are extinct
answers
flagGermany
0%
21%
50%
28%
14
flagIndia
14%
33%
38%
14%
42
flagthe United Kingdom
6%
12%
25%
56%
16
flagPoland
14%
23%
23%
38%
1643
flagthe United States
21%
26%
21%
31%
19