Cranial ornamentation of a large Brachydectes newberryi (Recumbirostra: Lysorophia) from Linton, Ohio.
Although the cranial anatomy of the lysorophian tetrapod Brachydectes has been reported in detail recently, many attributes of the group are inadequately known, and lysorophian systematics remain unclear. One under-described aspect of the genus is the development and variation of cranial ornamentat...
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| Format: | Article |
| Language: | English |
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University of Alberta Libraries
2018-10-01
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| Series: | Vertebrate Anatomy, Morphology, Palaeontology |
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| Online Access: | https://journals-clone.library.ualberta.ca/vamp/index.php/VAMP/article/view/29341 |
| _version_ | 1797942199748395008 |
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| author | Arjan Mann |
| author_facet | Arjan Mann |
| author_sort | Arjan Mann |
| collection | DOAJ |
| description | Although the cranial anatomy of the lysorophian tetrapod Brachydectes has been reported in detail recently, many attributes of the group are inadequately known, and lysorophian systematics remain unclear. One under-described aspect of the genus is the development and variation of cranial ornamentation. Whereas the smallest skulls (< 5 mm in length) lack sculpturing, ornamentation increases in progressively larger specimens and is conspicuous in the largest (> 30 mm skull length) individuals. It includes rugose ornament on the anterior cranial roof elements (frontals and anterior parietals) and pustular ornament on the posterior elements (posterior parietals and postparietals). Such ornamentation is unique within recumbirostrans and is identified as an ontogenetic feature. |
| first_indexed | 2024-04-10T20:03:39Z |
| format | Article |
| id | doaj.art-66d2df38034143e1b7178e43e993f5c6 |
| institution | Directory Open Access Journal |
| issn | 2292-1389 |
| language | English |
| last_indexed | 2024-04-10T20:03:39Z |
| publishDate | 2018-10-01 |
| publisher | University of Alberta Libraries |
| record_format | Article |
| series | Vertebrate Anatomy, Morphology, Palaeontology |
| spelling | doaj.art-66d2df38034143e1b7178e43e993f5c62023-01-26T20:57:44ZengUniversity of Alberta LibrariesVertebrate Anatomy, Morphology, Palaeontology2292-13892018-10-016Cranial ornamentation of a large Brachydectes newberryi (Recumbirostra: Lysorophia) from Linton, Ohio.Arjan Mann0Carleton UniversityAlthough the cranial anatomy of the lysorophian tetrapod Brachydectes has been reported in detail recently, many attributes of the group are inadequately known, and lysorophian systematics remain unclear. One under-described aspect of the genus is the development and variation of cranial ornamentation. Whereas the smallest skulls (< 5 mm in length) lack sculpturing, ornamentation increases in progressively larger specimens and is conspicuous in the largest (> 30 mm skull length) individuals. It includes rugose ornament on the anterior cranial roof elements (frontals and anterior parietals) and pustular ornament on the posterior elements (posterior parietals and postparietals). Such ornamentation is unique within recumbirostrans and is identified as an ontogenetic feature.https://journals-clone.library.ualberta.ca/vamp/index.php/VAMP/article/view/29341RecumbirostraLysorophiaLintonPermo-Carboniferousdermal ornamentontogeny |
| spellingShingle | Arjan Mann Cranial ornamentation of a large Brachydectes newberryi (Recumbirostra: Lysorophia) from Linton, Ohio. Vertebrate Anatomy, Morphology, Palaeontology Recumbirostra Lysorophia Linton Permo-Carboniferous dermal ornament ontogeny |
| title | Cranial ornamentation of a large Brachydectes newberryi (Recumbirostra: Lysorophia) from Linton, Ohio. |
| title_full | Cranial ornamentation of a large Brachydectes newberryi (Recumbirostra: Lysorophia) from Linton, Ohio. |
| title_fullStr | Cranial ornamentation of a large Brachydectes newberryi (Recumbirostra: Lysorophia) from Linton, Ohio. |
| title_full_unstemmed | Cranial ornamentation of a large Brachydectes newberryi (Recumbirostra: Lysorophia) from Linton, Ohio. |
| title_short | Cranial ornamentation of a large Brachydectes newberryi (Recumbirostra: Lysorophia) from Linton, Ohio. |
| title_sort | cranial ornamentation of a large brachydectes newberryi recumbirostra lysorophia from linton ohio |
| topic | Recumbirostra Lysorophia Linton Permo-Carboniferous dermal ornament ontogeny |
| url | https://journals-clone.library.ualberta.ca/vamp/index.php/VAMP/article/view/29341 |
| work_keys_str_mv | AT arjanmann cranialornamentationofalargebrachydectesnewberryirecumbirostralysorophiafromlintonohio |