Sexual Dimorphism in a New Species of Cassiduloid Echinoid, Pygaulus baghinensis, from the Aptian Strata of Baghin Area, West of Kerman, Iran
A new species of cassiduloid echinoids, Pygaulus baghinensis is reported for the first time from Aptian sediments of Baghin area, west of Kerman, Iran. The diagnostic features of the species are centrally positioned of the apical disc and approximately low profile of the test. Variation in gonopore...
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| Format: | Article |
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University of Tehran
2010-03-01
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| Series: | Journal of Sciences, Islamic Republic of Iran |
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| Online Access: | https://jsciences.ut.ac.ir/article_20138_8531ba90e46529513869038d93058c12.pdf |
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| author | M.R. Vaziri |
| author_facet | M.R. Vaziri |
| author_sort | M.R. Vaziri |
| collection | DOAJ |
| description | A new species of cassiduloid echinoids, Pygaulus baghinensis is reported for the first time from Aptian sediments of Baghin area, west of Kerman, Iran. The diagnostic features of the species are centrally positioned of the apical disc and approximately low profile of the test. Variation in gonopore size in different individuals allows to conclude that P. baghinensis is sexually dimorphic. Specimens with large gonopores can be considered to be females, while other specimens whose gonopores diameter is small, can be considered to be males. One of the specimens has one large and three small gonopores on its apical disc. This difference may be due to hermaphroditic feature of the specimen. |
| format | Article |
| id | doaj-art-9a7f9f694f2d40b8926e26f1147d83bf |
| institution | Kabale University |
| issn | 1016-1104 2345-6914 |
| language | English |
| publishDate | 2010-03-01 |
| publisher | University of Tehran |
| record_format | Article |
| series | Journal of Sciences, Islamic Republic of Iran |
| spelling | doaj-art-9a7f9f694f2d40b8926e26f1147d83bf2025-08-20T03:53:51ZengUniversity of TehranJournal of Sciences, Islamic Republic of Iran1016-11042345-69142010-03-0121120138Sexual Dimorphism in a New Species of Cassiduloid Echinoid, Pygaulus baghinensis, from the Aptian Strata of Baghin Area, West of Kerman, IranM.R. VaziriA new species of cassiduloid echinoids, Pygaulus baghinensis is reported for the first time from Aptian sediments of Baghin area, west of Kerman, Iran. The diagnostic features of the species are centrally positioned of the apical disc and approximately low profile of the test. Variation in gonopore size in different individuals allows to conclude that P. baghinensis is sexually dimorphic. Specimens with large gonopores can be considered to be females, while other specimens whose gonopores diameter is small, can be considered to be males. One of the specimens has one large and three small gonopores on its apical disc. This difference may be due to hermaphroditic feature of the specimen.https://jsciences.ut.ac.ir/article_20138_8531ba90e46529513869038d93058c12.pdfcassiduloid echinoidscretaceousgonoporeiransexual dimorphism |
| spellingShingle | M.R. Vaziri Sexual Dimorphism in a New Species of Cassiduloid Echinoid, Pygaulus baghinensis, from the Aptian Strata of Baghin Area, West of Kerman, Iran Journal of Sciences, Islamic Republic of Iran cassiduloid echinoids cretaceous gonopore iran sexual dimorphism |
| title | Sexual Dimorphism in a New Species of Cassiduloid Echinoid, Pygaulus baghinensis, from the Aptian
Strata of Baghin Area, West of Kerman, Iran |
| title_full | Sexual Dimorphism in a New Species of Cassiduloid Echinoid, Pygaulus baghinensis, from the Aptian
Strata of Baghin Area, West of Kerman, Iran |
| title_fullStr | Sexual Dimorphism in a New Species of Cassiduloid Echinoid, Pygaulus baghinensis, from the Aptian
Strata of Baghin Area, West of Kerman, Iran |
| title_full_unstemmed | Sexual Dimorphism in a New Species of Cassiduloid Echinoid, Pygaulus baghinensis, from the Aptian
Strata of Baghin Area, West of Kerman, Iran |
| title_short | Sexual Dimorphism in a New Species of Cassiduloid Echinoid, Pygaulus baghinensis, from the Aptian
Strata of Baghin Area, West of Kerman, Iran |
| title_sort | sexual dimorphism in a new species of cassiduloid echinoid pygaulus baghinensis from the aptian strata of baghin area west of kerman iran |
| topic | cassiduloid echinoids cretaceous gonopore iran sexual dimorphism |
| url | https://jsciences.ut.ac.ir/article_20138_8531ba90e46529513869038d93058c12.pdf |
| work_keys_str_mv | AT mrvaziri sexualdimorphisminanewspeciesofcassiduloidechinoidpygaulusbaghinensisfromtheaptianstrataofbaghinareawestofkermaniran |