Cystoblastus and the origin of the Hemicosmitoida (Echinodermata: Blastozoa)

by Christopher R. C. Paul, Ursula Toom
Published 2021-08-01

Middle Jurassic Zoophycos and Chondrites from the Mélah Formation of Saharan Atlas, Algeria

by Fayçal Mekki, Li-Jun Zhang, Olev Vinn, Ursula Toom, Madani Benyoucef, Mohamed Bendella, Emad Bouchemla, Mustapha Bensalah, Mohammed Adaci
Published 2019-10-01

The trace fossil Zoophycos from the Silurian of Estonia

by Olev Vinn, Ursula Toom
Published 2015-11-01

A new Byronia species from the Late Ordovician of Estonia

by Olev Vinn, Kalle Kirsimäe, Luke A. Parry, Ursula Toom
Published 2016-11-01

The earliest cornulitid on the internal surface of the illaenid pygidium from the Middle Ordovician of Estonia

by Olev Vinn, Ursula Toom, Mare Isakar
Published 2017-10-01

A new species of the antiarch Microbrachius from the Middle Devonian (Givetian) of Belarus

by Elga Mark-Kurik, Michael J. Newman, Ursula Toom, Jan L. den Blaauwen
Published 2017-12-01

Small faecal pellets in Ordovician shelly fossils from Estonia, Baltoscandia

by Ursula Toom, Olev Vinn, Mare Isakar, Anna Madison, Olle Hints
Published 2019-12-01

SHORT COMMUNICATION: First record of the trace fossil Oikobesalon from the Ordovician (Darriwilian) of Baltica

by Olev Vinn, Ursula Toom
Published 2014-05-01

A new microconchid species from the Silurian of Baltica

by Michał Zatoń, Olev Vinn, Ursula Toom
Published 2016-05-01

A sparsely encrusted hardground with abundant Trypanites borings from the Llandovery of the Velise River, western Estonia (Baltica)

by Olev Vinn, Ursula Toom
Published 2016-02-01