Archive for August, 2010

Christian Albrechts Universität zu Kiel (our IBA meeting venue)

August 2nd, 2010

KIEL, GERMANY–It is always interesting for an academic to visit another college or university … and we get many opportunities. The International Bryozoology Association meeting is being held at the Christian Albrechts Universität zu Kiel (University of Kiel for most English speakers) in northern Germany. It was founded in 1665 and later became one of the most important universities in Prussia. It presently has 23,000 students and a strong science program.

You may ask why such an old university has no buildings built before 1945? You know the answer. The original campus was heavily bombed in World War II. (Kiel was an important German naval base, especially for U-boats.) This new campus was moved to another location where the only signs of the old are occasional relics like the statue below.

Statue of Aristotle on the pre-1945 campus (left); same statue pulled from the wartime rubble and displayed on the new campus.

The Geology Department here has a small museum with a modern design featuring lots of natural light. It is a very pleasant and quiet place to have a meeting such as this.

Geology museum at the University of Kiel with glass walls facing east.

A Silurian reef display from Gotland, Sweden. This is very similar to the reefs Wooster students worked with in Estonia last year.

A modern lava pillow for Meagen and other petrologists. "Aus 2700 m Tiefe mit Fernsehgreifer geborgen, Mittelatlantischer Rücken nördlich Jan Mayen."

Stony bryozoans get their day

August 1st, 2010

Trepostome ("stony") bryozoan on a carbonate hardground from the Kanosh Formation (Ordovician, Whiterockian) of west-central Utah.

KIEL, GERMANY–The first day of the International Bryozoology Association meeting is traditionally devoted to workshops where participants can listen to experts on a particular group, technique or idea and then ask questions, work out exercises, or study specimens. I went to the workshop on a group of extinct bryozoans called trepostomes. The Order Trepostomata usually produced thick skeletons of the mineral calcite so they are commonly known as “stony bryozoans”. They lived from the Ordovician into the Triassic, and then disappeared forever. They are a difficult group to work with because their diagnostic features are internal and microscopic (thus requiring thin-sections or acetate peels to identify) and the number of important defining characters is still debated. I went to this workshop because Ohio can be considered the Trepostome Capital of the World with its abundant and diverse varieties found in the Ordovician of the Cincinnati area. Any Wooster geology student who has taken the Invertebrate Paleontology course will remember the buckets of these fossils we’ve collected over the years on field trips.

Wooster played a small role in this workshop, to my delight. One of the interesting and somewhat odd trepostome bryozoan types is found in the Ordovician (Whiterockian) at a place called Fossil Mountain in the western desert of Utah. A generation of Wooster Independent Study students worked here with me studying carbonate hardgrounds and the fossils associated with them. We collected many examples of a strange bryozoan we called “Trepostome Species A” because we could not identify it. Later Andrej Ernst, Paul Taylor and I described it as a new genus: Kanoshopora. It is still odd with its variable walls and colony forms. This meeting may have stirred some interest in pursuing its functional morphology (essentially how it lived) and evolutionary placement. A nice contribution from those days in the late 20th Century when we walked up and down the sunny slopes of Fossil Mountain trying to sort it all out.

Longitudinal thin-section view of Kanoshopora droserae showing its complex zooecial walls.

Fossil Mountain, west-central Utah -- the scene of much Wooster geology Independent Study fieldwork in the 1980s and 1990s, and the home of many of the oldest and strangest trepostome bryozoans.

« Prev