Devonian. Zachelmie trackways with hypothetical tetrapod

2010 (rollover for detail)

Published in Vasabladet 27.2.2010

References:
Grzegorz Niedzwiedzki, Piotr Szrek, Katarzyna Narkiewicz, Marek Narkiewicz & Per E. Ahlberg
Tetrapod trackways from the early Middle Devonian period of Poland.
Nature 463. 43-48 (2010)

Late Devonian. Panderichthys rhombolepis

2010

Published in Vasabladet 27.2.2010

Late Devonian. Tiktaalik roseae

Sketch 2009

Published in Vasabladet and Österbottens tidning 8.2.2009 together with an article about the late
Devonian tetrapods

Late Devonian. Ventastega curonica

2009 (rollover for detail)

Published in Vasabladet and Österbottens tidning 8.2.2009 together with
an article about the late Devonian tetrapods


References:
Per E. Ahlberg, Jennifer A. Clack, Ervins Luksevics, Henning Blom, Ivars Zupins. 2008.
Ventastega curonica and the origin of tetrapod morphology
Nature. Vol. 453. 26 June 2008. doi:10.1038/nature06991

Late Devonian. Acanthostega gunnari

Sketch 2009

Published in Vasabladet and Österbottens tidning 8.2.2009 together with an article about the late
Devonian tetrapods

Late Devonian. Acanthostega gunnari

Gouache 2001

My first painting of this animal.

Late Devonian. Ichthyostega stensioei
(on the early Jarvik reconstruction)
Gouache 2001.

Late Devonian. Ichthyostega stensioei

2008

Upper: Jarvik 1955. Skin and colour based on some species of the Loricariidae Cat Fishes. Middle: Clack 2002. An "intermediate" reconstruction before coming to the result Ahlberg, Clack and Blom described in Nature 2005. Skin and colour loosely based on a living toad.
Bottom: Ahlberg 2005. Skin and colour based on an extant amphibian and a fish.
Published (apart from the middle one) in Vasabladet and Österbottens tidning 8.2.2009 together with an article about the late Devonian tetrapods

Carboniferous. Meganeura with a small Hylonomus

Gouache 2007

Published in Vasabladet 2007 together with an article about oxygen through out history.

Early Permian. Dimetrodon grandis

Gouache 2002

Rather bold in colour.

Made for an article by Rolf Österblad about the Permian.
Published in Vasabladet 2002

Early Permian. Ophiacodon, Dimetrodon, Varanosaurus

Gouache 2002

Made for an article by Rolf Österblad about the Permian.
Published in Vasabladet 2002

Late Permian. Dvinia prima, Inostrancevia alexandri,
Dicynodon trauscholdi.
Gouache 2002

Made for an article by Rolf Österblad about the Permian.
This one wasn't used.