Perióstraco

Periostracum - outermost layer of the shell in many shelled animals. Article “Perióstraco” in Galician Wikipedia has 24 points for quality (as of July 1, 2025). The article contains 5 references and 7 sections.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (Galician) language version.

Since the creation of article “Perióstraco”, its content was written by 1 registered users of Galician Wikipedia and edited by 124 registered Wikipedia users in all languages.

The article is cited 13 times in Galician Wikipedia and cited 1222 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Galician): #5539 in October 2020
• Global: #84004 in November 2008

The highest popularity rank from 2008:

• Local (Galician): #6598 in April 2016
• Global: #458189 in July 2010

There are 14 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) Periostracum		47.0857
2	Chinese (zh) 外殼膜		44.1
3	French (fr) Périostracum		28.5006
4	Simple English (simple) Periostracum		24.4544
5	Persian (fa) پیراپوسته		24.3136
6	Galician (gl) Perióstraco		24.0194
7	Portuguese (pt) Perióstraco		19.4952
8	Indonesian (id) Periostrakum		17.4796
9	Arabic (ar) قشرة الصدفة		14.5049
10	Italian (it) Periostraco		12.9626

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "Perióstraco" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Periostracum		169 361
2	German (de) Periostracum		34 650
3	Polish (pl) Periostrakum		20 416
4	Spanish (es) Perióstraco		14 452
5	Dutch (nl) Periostracum		12 872
6	French (fr) Périostracum		12 626
7	Indonesian (id) Periostrakum		8 467
8	Portuguese (pt) Perióstraco		6 600
9	Chinese (zh) 外殼膜		4 053
10	Italian (it) Periostraco		3 376

More...

The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Perióstraco" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Periostracum		1 019
2	Chinese (zh) 外殼膜		147
3	German (de) Periostracum		99
4	Spanish (es) Perióstraco		67
5	French (fr) Périostracum		50
6	Italian (it) Periostraco		44
7	Dutch (nl) Periostracum		32
8	Portuguese (pt) Perióstraco		24
9	Simple English (simple) Periostracum		18
10	Polish (pl) Periostrakum		17

More...

The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Perióstraco" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Periostracum		32
2	German (de) Periostracum		23
3	Dutch (nl) Periostracum		18
4	French (fr) Périostracum		16
5	Polish (pl) Periostrakum		7
6	Spanish (es) Perióstraco		6
7	Chinese (zh) 外殼膜		6
8	Simple English (simple) Periostracum		5
9	Arabic (ar) قشرة الصدفة		2
10	Persian (fa) پیراپوسته		2

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Perióstraco" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Arabic (ar) قشرة الصدفة		0
2	German (de) Periostracum		0
3	English (en) Periostracum		0
4	Spanish (es) Perióstraco		0
5	Persian (fa) پیراپوسته		0
6	French (fr) Périostracum		0
7	Galician (gl) Perióstraco		0
8	Indonesian (id) Periostrakum		0
9	Italian (it) Periostraco		0
10	Dutch (nl) Periostracum		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Perióstraco" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Periostracum		460
2	German (de) Periostracum		376
3	Portuguese (pt) Perióstraco		106
4	Dutch (nl) Periostracum		85
5	Polish (pl) Periostrakum		41
6	French (fr) Périostracum		34
7	Spanish (es) Perióstraco		31
8	Italian (it) Periostraco		23
9	Persian (fa) پیراپوسته		16
10	Arabic (ar) قشرة الصدفة		14

More...

#	Language	Value
ar	Arabic قشرة الصدفة
de	German Periostracum
en	English Periostracum
es	Spanish Perióstraco
fa	Persian پیراپوسته
fr	French Périostracum
gl	Galician Perióstraco
id	Indonesian Periostrakum
it	Italian Periostraco
nl	Dutch Periostracum
pl	Polish Periostrakum
pt	Portuguese Perióstraco
simple	Simple English Periostracum
zh	Chinese 外殼膜

Best Rank

Galician: #6598 04.2016

Global: #458189 07.2010

Best Rank

Galician: #5539 10.2020

Global: #84004 11.2008

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information