Tromsø museums aarshefter - Tromsø museum. (C. Hansen, 1891)

Trudy Geologicheskago komiteta = Mémoires du Comité géologique - Russia. Geologicheskii komitet. (Komitet, 1885)

Trudy Geologicheskago komiteta = Mémoires du Comité géologique - Russia. Geologicheskii komitet. (Komitet, 1887)

Trudy Geologicheskago komiteta = Mémoires du Comité géologique - Russia. Geologicheskii komitet. (Komitet, 1888)

Trudy Geologicheskago komiteta = Mémoires du Comité géologique - Russia. Geologicheskii komitet. (Komitet, 1892)

Trudy Geologicheskago komiteta = Mémoires du Comité géologique - Russia. Geologicheskii komitet. (Komitet, 1895)

Trudy Geologicheskago komiteta = Mémoires du Comité géologique - Russia. Geologicheskii komitet. (Komitet, 1896)

Trudy Geologicheskago komiteta = Mémoires du Comité géologique - Russia. Geologicheskii komitet. (Komitet, 1898)

Trudy Geologicheskago komiteta = Mémoires du Comité géologique - Russia. Geologicheskii komitet. (Komitet, 1902)

Tryonia - Academy of Natural Sciences of Philadelphia. Department of Malacology. (Dept. of Malacology, Academy of Natural Sciences of Philadelphia, 1992)

Tulane studies in zoology - Tulane University. (Tulane University, 1954)

Tulane studies in zoology - Tulane University. (Tulane University, 1958)

Tulane studies in zoology and botany - Tulane University. Department of Biology. (Tulane University, 1978)

Über die palaeozoischen Gebilde Podoliens und deren versteinerungen. Erste Abtheilung - K.K. Geologische Reichsanstalt (Austria) (Aus der Kaiserl. Königl. Hof- und Staatsdruckerei, 1874)

Ueberblick über die Trias : mit Berücksichtung ihres Vorkommens in der Alpen - Alberti, Friedrich August von, 1795 -1878 (J.G. Cotta, 1864)

The underwater guide to marine life - Ciampi, Elgin. (Barnes, 1956)

The University Geological Survey of Kansas - Kansas Geological Survey. (The Survey, 1908)

University of California publications in zoology - University of California, Berkeley. (University Press, 1906)

University of California publications in zoology - University of California, Berkeley. (University Press, 1907)

University of California publications in zoology - University of California, Berkeley. (University Press, 1908)

University of California publications in zoology - University of California, Berkeley. (University Press, 1910)

University of California publications in zoology - University of California, Berkeley. (University Press, 1911)

University of California publications in zoology - University of California, Berkeley. (University Press, 1912)

University of California publications in zoology - University of California, Berkeley. (University Press, 1914)

University of California publications in zoology - University of California, Berkeley. (University Press, 1921)

The University of Colorado studies. General series A - University of Colorado, Boulder. (University of Colorado, 1907)

The University of Colorado studies. General series A - University of Colorado, Boulder. (University of Colorado, 1912)

The University of Colorado studies. General series A - University of Colorado, Boulder. (University of Colorado, 1914)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1966)

Das unpaare Auge, die Frontalorgane und das Nackenorgan einiger Branchiopoden - Zograf, Nikolaj Ûrʹevič, 1851 -1919 (R. Friedländer und Sohn, 1904)

Untersuchungen uber die Entwickelungs-Gesetze der organischen Welt wahrend der Bildungs-Zeit unserer Erd-Oberflache : eine von der Franzosischen Akademie im Jahre 1857 gekronte Preisschrift, mit ihrer Erlaubniss Deutsch herausgegeben - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart'sche Verlagshandlung, 1858)

Untersuchungen über die Süsswasser-Mikrofauna Paraguays - Michaelsen, W. (Wilhelm), 1860 -1937 (E. Nägele, 1905)

Untersuchungen zur Erforschung der genealogischen Grundlage des crustaceen-Systems - Claus, Carl, 1835 -1899 (C. Gerold's sohn, 1876)

Upper Cambrian and Lower Ordovician trilobite biostratigraphy of the Rabbitkettle Formation, Western District of Mackenzie - Royal Ontario Museum. (Royal Ontario Museum, 1982)

Upper Cretaceous Ostracoda from North Carolina - Brown, Philip M. (Philip Monroe), 1922 - (s.n, 1957)

Upper Kinkaid (Mississippian) microfauna from Johnson County, Illinois - Cooper, Chalmer L. (Chalmer Lewis), 1898 - (1947)

A User's guide to CERC's Field Research Facility - Coastal Engineering Research Center (U.S.) (U.S. Army, Corps of Engineers, Coastal Engineering Research Center, 1981)

Vegetationsbilder - Schenck, Heinrich, 1860 -1927 (G. Fischer, 1912)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1967)