Academic Journal
An early juvenile of Kunpengopterus sinensis (Pterosauria) from the Late Jurassic in China
| العنوان: | An early juvenile of Kunpengopterus sinensis (Pterosauria) from the Late Jurassic in China |
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| المؤلفون: | SHUNXING JIANG, XIAOLI WANG, XIAOTING ZHENG, XIN CHENG, JUNQIANG ZHANG, XIAOLIN WANG |
| المصدر: | Anais da Academia Brasileira de Ciências, Vol 93, Iss suppl 2 (2021) |
| بيانات النشر: | Academia Brasileira de Ciências, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Science |
| مصطلحات موضوعية: | Kunpengopterus sinensis, early juvenile, ontogeny, Late Jurassic, China, Science |
| الوصف: | Abstract The Wukongopteridae is a transitional clade between the long- and short-tailed pterosaur groups, and at least ten specimens have been studied without a determined juvenile specimen. Here, we described a small-sized Kunpengopterus sinensis, less than half the size of the holotype, which is the smallest specimen in wukongopterids. Based on unossified small elements, unfused cranial and postcranial elements, and grooves on the bone surface, this specimen is thought to be at least an early juvenile or even a late hatchling. By comparing the juvenile and subadult specimens of K. sinensis, we have found that the mid region of the upper and lower jaws had a higher growth rate than the anterior part, and that the growth rates were similar in most postcranial elements except for a higher rate in the caudal vertebrae. We revised the previous diagnosis of K. sinensis and specified that two characteristics, nasoantorbital fenestra approximately 40% of the skull length and a thin and relatively short maxillary process of the jugal, should be diagnostic in subadult or adult specimens. We have also found that pedal features are stable during ontogeny and can be diagnostic in juvenile, subadult or adult specimens in K. sinensis. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1678-2690 0001-3765 |
| Relation: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652021000401204&tlng=en; http://www.scielo.br/pdf/aabc/v93s2/0001-3765-aabc-93-s2-e20200734.pdf; https://doaj.org/toc/1678-2690 |
| DOI: | 10.1590/0001-3765202120200734 |
| URL الوصول: | https://doaj.org/article/c23ce0619be94c7fb460f8efcc78b99b |
| رقم الانضمام: | edsdoj.23ce0619be94c7fb460f8efcc78b99b |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 16782690 00013765 |
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| DOI: | 10.1590/0001-3765202120200734 |