# Problem with taxonomy **URL:** https://forum.qiime2.org/t/problem-with-taxonomy/14371 **Category:** User Support **Tags:** taxonomy, feature-classifier **Created:** [April 6, 2020, 1:01pm UTC](https://forum.qiime2.org/t/problem-with-taxonomy/14371 "2020-04-06T13:01:48Z") **Posts on this page:** 1 **Showing post:** 3
### Author: ![Nicholas\_Bokulich](https://forum.qiime2.org/user_avatar/forum.qiime2.org/nicholas_bokulich/32/19937_2.png) [@Nicholas\_Bokulich](https://forum.qiime2.org/u/Nicholas_Bokulich) #### Post date: [April 7, 2020, 2:44pm UTC](https://forum.qiime2.org/t/problem-with-taxonomy/14371/3 "2020-04-07T14:44:41Z")
Welcome to the forum, @mosmasha! This sounds like it may be an issue with the taxonomy classification step, unless if you were expecting 100% Clostridia. 1. how did you classify your sequences taxonomically? (method, source of the reference/classifier, etc) 2. how many sequences do you have per sample? Were there any upstream processing issues that might cause a problem? 3. What were you expecting to see? 4. Could you share your taxa-bar-plots.qzv so that we can take a look? There are several topics regarding taxonomy errors listed inside the following topic, these might give you some ideas of what may have gone wrong: > [@Frequent Questions and "Best of the QIIME 2 Forum"](https://forum.qiime2.org/t/best-of-the-qiime-2-forum/13608): > > The following is a list of frequently asked questions on the forum, with answers, to serve as a point of reference for forum users to quickly find answers, or for forum users and moderators to use as a reference when helping others. Note: some of these listings are collapsed lists. If you see an arrow next to a title, click the title to expand the list of topic titles related to that subject. arrow_forwardFAQs [What is a "Feature" exactly? - #3 by Nicholas\_Bokulich](https://forum.qiime2.org/t/what-is-a-feature-exactly/2201/3)[MemoryError with q2-f…](https://forum.qiime2.org/t/feature-classifiers-error/11946/2) Thanks! --- _[View the full topic](https://forum.qiime2.org/t/problem-with-taxonomy/14371)._