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Scale morphology an...
Scale morphology and squamation of the Late Silurian osteichthyan Andreolepis from Gotland, Sweden
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- Chen, Donglei, 1985- (författare)
- Uppsala universitet,Evolution och utvecklingsbiologi
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- Janvier, Philippe (författare)
- Département Histoire de la Terre, Muséum National d'Histoire Naturelle,
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- Ahlberg, Per (författare)
- Uppsala universitet,Evolution och utvecklingsbiologi
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- Blom, Henning (författare)
- Uppsala universitet,Evolution och utvecklingsbiologi
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(creator_code:org_t)
- 2012
- 2012
- Engelska.
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Ingår i: Historical Biology. - 0891-2963 .- 1029-2381. ; 24:4, s. 411-423
- Relaterad länk:
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http://www.tandfonli...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The origin of osteichthyans (bony fishes and tetrapods) dates back to the Late Silurian, but the early evolution of the group is poorly understood. Andreolepis is one of the oldest known osteichthyans, but exclusively documented by detached and fragmentary dermal microremains. A large data-set of Andreolepis scales from the Silurian of Gotland has been used to explore the scale morphology on different parts of the body. Landmark-based geometric morphometrics together with comparative anatomy and functional morphology has allowed 10 morphotypes to be identified and incorporated into a squamation model, in which scales are allocated to anterior-mid lateral flank scales, posterior lateral flank scales, caudal peduncle scales, pectoral peduncle scales, dorsal flank scales, dorsal fulcral scales, caudal fulcral scales, ventral flank scales, medioventral scales and cranial scales. The scale morphology and squamation pattern ofAndreolepis may be primitive for the Osteichthyes and thus informative about the acquisition of the osteichthyan body plan.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Nyckelord
- Late Silurian
- Osteichthyan
- Andreolepis
- scale
- squamation
- morphometrics
- Biologi med inriktning mot evolutionär organismbiologi
- Biology with specialization in Evolutionary Organismal Biology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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