Valdemar Poulsen

• An early Ordovician trilobite fauna from Bornholm
• Cambro-Silurian Stratigraphy of Bornholm
• Contribution to the Lower and Middle Cambrian paleontology and stratigraphy of northwest Greenland
• Contributions to the Middle Cambrian paleontology and stratigraphy of Argentina
• Ctenopyge (Ctenopyge) pecten tenuis n. subsp. from the upper Cambrian of Bornholm
• Early Cambrian distacodontid conodonts from Bornholm
• Geologi på øerne
• Grønlands geologi
• Notes on an ordovician acrotretacean brachiopod from the Oslo region
• Notes on Hyolithellus Billings, 1871
• Om ochronotiske tilstande hos mennesker og dyr
• The lower middle Cambrian Kalby-ler (Kalby clay) on the island of Bornholm