Some new American fossil crinoids / by Frank Springer.

v.25:no.3 (1911)

Report on the fossil plants of the auriferous gravel deposits of the Sierra Nevada / by Léo Lesquereux.

v.6:no.2 (1878)

Jamaican fossil Echini / by Benjamin Walworth Arnold and Hubert Lyman Clark. With descriptions of new species of Cainozoic Echinoidea / by Herbert L. Hawkins.

v.50:no.1 (1927)

Some additional fossil Echini from Jamaica / by Benjamin Walworth Arnold and Hubert Lyman Clark.

v.54:no.2 (1934)

Systematic revision of fossil prairie dogs with descriptions of two new species / H. Thomas Goodwin.

no.86 (1995)

Ferns and fern allies of Guatemala. Robert G. Stolze.

n.s. no.12(1983)