Geomuseum Faxe

Fakse, Denmark

Geomuseum Faxe

Fakse, Denmark
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Schwarzhans W.,Ahrensburger Weg 103 | Schwarzhans W.,Universitetsparken 15 | Milan J.,Geomuseum Faxe
Bulletin of the Geological Society of Denmark | Year: 2017

This is the first study of bony fish remains across the K/Pg boundary section at Stevns Klint, Denmark. The studied specimens comprise one partly preserved articulated skeleton, a few isolated bones, and casts from several otolith imprints and voids. As otoliths are aragonitic, the remains are all dissolved. The imprints of the otoliths originate from the uppermost Maastrichtian Højerup Member or ‘Grey Chalk’, and the bone fragments and the partial skeleton were obtained from the Fiskeler Member directly above the K/Pg boundary. Further otolith imprints originated from the basal Danian Cerithium Limestone Member, which directly overlies the Fiskeler Member. Six otolith-based taxa were identified from the uppermost Maastrichtian and three from the basal Danian. One of the species found in the uppermost Maastrichtian persisted into Danian times (Polymixia? harderi), a second represents a common genus in both Maastrichtian and Danian but cannot be identified to the species level (Centroberyx sp.), and a third taxon is an unidentifiable dynematichthyid, which, however, certainly does not belong to any of the known Danian dinematichthyid species. The species recognised in the basal Danian all persisted well into later Danian times or even the Selandian, showing a remarkable consistency of the early Paleocene bony fish fauna. We find no indication of phased extinction in the aftermath of the K/ Pg boundary event in the data recovered from the Danian. © 2017 by Bulletin of the Geological Society of Denmark.

Luthje C.J.,University Center in Svalbard | Luthje C.J.,University of Bergen | Mila n J.,Geomuseum Faxe | Mila n J.,Copenhagen University | Hurum J.H.,University of Oslo
Journal of Vertebrate Paleontology | Year: 2010

We discuss large tracks recently discovered in Paleocene coal deposits from Svalbard. The age, large size, and excellent preservation of the tracks allows them to be identified to the pantodont Titanoides. This is the earliest evidence of a large mammal on the Arctic islands and the northernmost record from the Paleocene. The traces are described in detail and named Thulitheripus svalbardii, gen. et sp. nov. Large Paleocene pantodonts are previously only known from North America. The presence of pantodonts in the Paleocene strata of Svalbard confirms the postulated DeGeer route for migration of mammals in the Paleocene/Eocene. © 2010 by the Society of Vertebrate Paleontology.

Mueller-Towe I.J.,Geomuseum Faxe | Kjeldahl-Vallon T.A.,Geomuseum Faxe | Milan J.,Geomuseum Faxe | Milan J.,Copenhagen University | And 5 more authors.
Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen | Year: 2011

Well-preserved fossil eggs and eggshell fragments from the Pliocene Apolakkia Formation of Rhodes (Greece) are described. The eggs were found in-situ in a clutch. They are sub-spherical with lengths of 53-60 mm and widths of about 40 mm. All eggs are diagenetically compressed and their original diameters are estimated at 45-50 mm. The eggshells are 0.3-0.5 mm thick, partly recrystallized, but widely still aragonitic. They consist of needle-like crystals that form individual shell units. A few pores are preserved between these shell units. This shell-structure allows assignment to chelonian eggs in the oofamily Testudoolithidae and the oogenus Testudolithus. The external morphology, microstructure and mineralogical composition of the eggshells show close resemblance to eggs of the extant tortoise Geochelone elephantopus. Together with a small association of turtle carapace fragments from the same formation, the clutch represents the first discovery of turtle and reptilian remains from the Pliocene of the island of Rhodes. ©2011 E. Schweizerbart'sche Verlagsbuchhandlung Stuttgart Germany.

Milan J.,Geomuseum Faxe | Klein H.,Saurierwelt Palaontologisches Museum | Voigt S.,Urweltmuseum GEOSKOP | Stemmerik L.,Natural History Museum of Denmark
Bulletin of the Geological Society of Denmark | Year: 2016

A single slab with Late Palaeozoic tetrapod footprints from East Greenland has been housed at the Natural History Museum of Denmark for decades without scientific notice. The specimen comes from the Mesters Vig Formation of northern Scoresby Land in East Greenland and contains a monospecific assemblage of tetrapod footprints that we assign to Limnopus Marsh 1894. As there is no significant morphological difference from other records of this ichnogenus from North America, Europe and North Africa, the described tetrapod footprints can be referred to eryopoid temnospondyl trackmakers. Limnopus is well-known from Upper Carboniferous and Lower Permian continental deposits of palaeoequatorial Pangea. Identification of Limnopus tracks is in agreement with the supposed Late Carboniferous age of the Mesters Vig Formation and thereby also the first evidence of Carboniferous tetrapods from Greenland. © 2016 by Bulletin of the Geological Society of Denmark.

Vallon L.H.,Geomuseum Faxe | Rindsberg A.K.,University of West Alabama | Bromley R.G.,Ronnevej 97
Geodinamica Acta | Year: 2016

During the last few decades, many new ethological categories for trace fossils have been proposed in addition to the original five given by Seilacher. In this article, we review these new groups and present a version of the scheme of fossil animal behaviour originally published by Bromley updated with regard to modern ethological concepts, especially those of Tinbergen. Because some behaviours are more common in certain environments than others, they are useful in palaeoecological reconstructions, forming the original basis of the ichnofacies concept. To simplify, we summarise some ethological categories as previously done by others. However, the tracemakers behaviour in some cases is so distinctive that subcategories should be employed, especially in ecological interpretations of certain environments where a special behaviour may be dominant. © 2015 Taylor and Francis.

Milan J.,Geomuseum Faxe | Milan J.,Copenhagen University | Lindow B.E.K.,Copenhagen University | Lauridsen B.W.,Copenhagen University
Bulletin of the Geological Society of Denmark | Year: 2011

A fragment of a turtle carapace from the Middle Danian bryozoan limestone at the Faxe quarry, eastern Denmark, is identified as a partial costal plate from the carapace of a chelonioid turtle. The fragment bears traces of three separate acts of predation or scavenging. Two circular bite traces Nihilichnus nihilicus Mikula ́s ̌ et al. 2006, 4 mm in diameter, situated 2.5 cm apart, are interpreted as crocodylian. Groups of parallel scrapes, Machichnus bohemicus Mikuláš et al. 2006, 4-5 mm long and 0.5 mm wide, are interpreted as bite traces from sharks. Small circular traces, ~1 mm in diameter, found either alone or in a row of three, are either from sharks or fish. This is the first record of turtles from the Danian bryozoan limestone exposed in Faxe quarry, and thus represents an important addition to the Danian vertebrate fauna of Denmark. © 2011 by Bulletin of the Geological Society of Denmark.

Mateus O.,New University of Lisbon | Milan J.,Geomuseum Faxe | Milan J.,Copenhagen University | Romano M.,University of Sheffield | Whyte M.A.,University of Sheffield
Acta Palaeontologica Polonica | Year: 2011

Eleven new tracks from the Upper Jurassic of Portugal are described and attributed to the stegosaurian ichnogenus Deltapodus. One track exhibits exceptionally well-preserved impressions of skin on the plantar surface, showing the stegosaur foot to be covered by closely spaced skin tubercles of ca. 6 mm in size. The Deltapodus specimens from the Aalenian of England represent the oldest occurrence of stegosaurs and imply an earlier cladogenesis than is recognized in the body fossil record.

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