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 Forskning Enskilda forskargrupper och mer . Publikationer Programmets publikationer sedan 2003 . Seminarieserier Aktuell forskning inom programmet . Se även:  Palaeobiology
ResearchSpotlight The
GEOISLANDS-projectGeotourism on Central Baltic Islands  on Cambrian Stratigraphy  |
Utbildning - huvudsida Alla kurser och ytterligare information . Masterprogram i paleobiologi Allmän information Populära länkar: Kurser
på grundnivå Kursbeskrivningar och -information . Kurser
på
masternivåPaleobiologins kurser på masternivå ges på engelska! . KursmaterialFöreläsningar och övningar som pdf-filer |
Dinosaurs from New Mexcio, a seminar by Dr R. Sullivan. 25 April, 2012. [more info] The 2nd Wiman Meeting  Uppsala, 17-18 November 2011 Bilder och lokalinformation från fältkurser: 1)
Dorset
2) Wales (kommer snart) 3) Gotland 4) Västergötland Följ oss på Facebook  Månadens fossil  |
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| Palaeobiology Research Spotlight |
Brachiopods
"leveled-up"
in
the
lower Cambrian
March 2012 Brachiopods
are usually thought to contribute little to the tiering complexity from
the Palaeozoic to the Recent, mainly due to the fact that their modern
representatives live primarily in lower tiers. In a recent issue of Palaeogeography,
Palaeoclimatology,
Palaeoecology , H.
Wang, L.
Holmer and collegues describe the first
and oldest record of varied levels of secondary tiering in minute
brachiopods attached around the branched fronds of the algae-like Malongitubus kuangshanensis.
The new material is part of the famous Chengjiang fauna (Cambrian
Series 2, Stage 3) of the Heilinpu Formation, southern China. The
brachiopods can be assigned to the acrotretoid brachiopods and are
described as the new genus and species Kuangshanotreta malungensis.
This is the first report on the occurrence of acrotretoid brachiopods
in the lower Cambrian muddy deposits from southern China. The
acrotretoid/algae association represents both, the first and oldest
evidence into the enigmatic paleoecology of the diverse acrotretoid
linguliformean stock that comprises an important component of the
Cambrian evolutionary fauna, and sheds light on medium-high levels of
secondary tiering Cambrian soft substrate suspension-feeding
communities. |
| Fossils
from the cold - Palaeobiology expedition to
Antarctica October 2011 The Swedish
Polar Research Secretariat
, in collaboration with the U.S. National Science Foundation (NSF), is
conducting a one month expedition to Antarctica. Goal of the expedition
is to find well preserved Cambrian fossils in order to improve our
understanding of the early diversification of life during the very
beginning of the Phanerozoic. The expedition is led by Uppsala
scientist Lars
Holmer and scheduled for October 26 to November 30, 2011. All
participants will be based at the U.S.
McMurdo station from where they will be flown to the
premises in Churchill Mountains where a tent camp will be set up.Further information can be obtained from the Swedish Polar Research Secretariat. [in English / på
svenska ] Video footage from the ongoing expedition: [flight to Antarctica ] [camp at
Mt Erebus ] [nn] |
Aragonite
preservation
in
Ordovician–Silurian
brachiopods
September 2011 In
this month's issue of Geology , former programme scientist U.
Balthasar and
his collegues (including L.E.
Holmer) describe the implications of the discovery of well
preserved trimerellid brachiopods from Gotland, Canada and Kazakhstan. The discovery of common occurrence of
relic aragonite in their shells extends the known range of aragonite
preservation by more than 130 million years. Together with associated
hypercalcifying taxa of putatively original aragonite or high-magnesium
calcite composition and considerations of the temperature dependence of
aragonite and calcite precipitation, suggest that the evolution of
aragonite biomineralization might have presented an adaptive advantage
in shallow marine tropical waters of calcite seas. [see also official
press release (Swedish only) at Uppsala University's homepage] |
Battle scars on an
ancient sea monster
May
2011
Healed bite wounds on the fossilised jaw of an ichthyosaur from Australia provides rare evidence of an aggressive encounter that took place 120 million years ago. At this time the Australian continent was close to the southern polar circle and covered by a freezing inland sea. Positioning of the tooth marks indicate an attack from below but their size and spacing do not match any potential predators or prey. Rather, they are most consistent with another adult ichthyosaur, suggesting that the injuries were sustained during combat over food, mates or territory. Facial biting is a common social interaction in animals today and is often directed towards restraining the opponents jaws. The report, co-authored by Benjamin Kear (Palaeobiology Programme), will appear next month in Acta Palaeontologica Polonica (available in advance online ).[see also official press release (English version) and online articles by National Geographic and ScienceNews ] |
|
Dinosaurs Down Under
February 2011
|
