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Per E. Ahlberg on Muck Rack

Per E. Ahlberg

As seen in: Nature, Newsweek, PLOS Biology, PLOS ONE, NDTV, Taylor & Francis Online, The Conversation, Phys.org, Science Magazine, Business Standard and
Vertebrate palaeontologist at Uppsala University. Good cook, OK gardener, incompetent lute player. Opinions mine. Will flame apologists for tyranny.
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Articles

The oldest articulated bony fish from the early Silurian period

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By You-an Zhu, Yang Chen, qiang li, Wen-Jin Zhao, Zheng-Da Zhou, Lian-Tao Jia, Yi-Lun Yu, Han-Xin Yu, Guang-Biao Wei, Per E. Ahlberg, JIng Lu, Min Zhu
| Nature Verified
Abstract Osteichthyans, comprising sarcopterygians and actinopterygians, dominate modern vertebrate biodiversity1,2,3, yet their pre-Devonian fossil record remains scarce and fragmentary4,5. The oldest articulated sarcopterygian6 and stem osteichthyan7 date to the late Silurian, whereas undisputed actinopterygian fossils in articulation appear only in the Middle Devonian8.
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Largest Silurian fish illuminates the origin of osteichthyan characters

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By JIng Lu, Brian Choo, Wenjin Zhao, You-an Zhu, Xindong Cui, Zhaohui Pan, Donglei Chen, Xiaoyue Liu, Yilun Yu, Tuo Qiao, qiang li, Liantao JIA, Per E. Ahlberg, Min Zhu
| Nature Verified
Abstract Osteichthyans (bony fishes and tetrapods) encompass 98% of modern vertebrate species. However, our understanding of the sequence of character evolution among stem osteichthyans has been substantially limited by the fragmentary nature of known stem osteichthyan fossils1,2,3,4. Here we investigate newly discovered articulated head and trunk material of Megamastax amblyodus5, which yields previously unseen morphological details of a Silurian stem osteichthyan.
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A dual respiratory and auditory function for the coelacanth lung - Communications Biology

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By Luigi Manuelli, Gaël Clément, Marc Herbin, Bernd Fritzsch, Per E. Ahlberg, Kathleen N. Dollman, Lionel Cavin
| Nature Verified
Abstract Since the discovery of Latimeria chalumnae, coelacanths have provided a critical comparative framework for reconstructing ancestral sarcopterygian anatomy. However, the function of several anatomical features in both extant and fossil coelacanths remains unresolved. Among these, the presence of large ossified chambers in the body cavity of fossil coelacanths has remained enigmatic, with different studies proposing respiratory or auditory functions.
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