Per Erik Ahlberg
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Explore the profile of Per Erik Ahlberg including associated specialties, affiliations and a list of published articles.
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21
Citations
369
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Recent Articles
1.
Kirscher U, El Atfy H, Gartner A, Dallanave E, Munz P, Niedzwiedzki G, et al.
Sci Rep
. 2021 Oct;
11(1):19427.
PMID: 34635686
We present an updated time frame for the 30 m thick late Miocene sedimentary Trachilos section from the island of Crete that contains the potentially oldest hominin footprints. The section...
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3.
Vaskaninova V, Chen D, Tafforeau P, Johanson Z, Ekrt B, Blom H, et al.
Science
. 2020 Jul;
369(6500):211-216.
PMID: 32647004
The dentitions of extant fishes and land vertebrates vary in both pattern and type of tooth replacement. It has been argued that the common ancestral condition likely resembles the nonmarginal,...
4.
Beznosov P, Clack J, Luksevics E, Ruta M, Ahlberg P
Nature
. 2019 Oct;
574(7779):527-531.
PMID: 31645719
The known diversity of tetrapods of the Devonian period has increased markedly in recent decades, but their fossil record consists mostly of tantalizing fragments. The framework for interpreting the morphology...
5.
Gess R, Ahlberg P
Science
. 2018 Jun;
360(6393):1120-1124.
PMID: 29880689
Until now, all known fossils of tetrapods (limbed vertebrates with digits) and near-tetrapods (such as , , and ) from the Devonian period have come from localities in tropical to...
6.
Jerve A, Qu Q, Sanchez S, Ahlberg P, Haitina T
PLoS One
. 2017 Dec;
12(12):e0189833.
PMID: 29281687
There are two types of dermal skeletons in jawed vertebrates: placoderms and osteichthyans carry large bony plates (macromery), whereas chondrichthyans and acanthodians are covered by small scales (micromery). Fin spines...
7.
Zaton M, Broda K, Qvarnstrom M, Niedzwiedzki G, Ahlberg P
Naturwissenschaften
. 2017 Mar;
104(3-4):26.
PMID: 28283751
We describe the first known occurrence of a Devonian coelacanth specimen from the lower Famennian of the Holy Cross Mountains, Poland, with a conodont element preserved in its digestive tract....
8.
Dupret V, Sanchez S, Goujet D, Ahlberg P
PLoS One
. 2017 Feb;
12(2):e0171241.
PMID: 28170434
Placoderms are considered as the first jawed vertebrates and constitute a paraphyletic group in the stem-gnathostome grade. The acanthothoracid placoderms are among the phylogenetically most basal and morphologically primitive gnathostomes,...
9.
Jerve A, Qu Q, Sanchez S, Blom H, Ahlberg P
PeerJ
. 2016 Nov;
4:e2521.
PMID: 27833794
is one of only a handful of probable stem-group osteichthyans known from the fossil record. First collected and described in the late 19th century from the upper Silurian Saaremaa Cliff...
10.
Lu J, Zhu M, Ahlberg P, Qiao T, Zhu Y, Zhao W, et al.
Sci Adv
. 2016 Jul;
2(6):e1600154.
PMID: 27386576
Crown or modern sarcopterygians (coelacanths, lungfishes, and tetrapods) differ substantially from stem sarcopterygians, such as Guiyu and Psarolepis, and a lack of transitional fossil taxa limits our understanding of the...