Pycnaspis splendens, New Genus, New Species, a New Ostracoderm from the Upper Ordovician of North America

Chimæroid Fishes and Their Development

2010 • 123 citations

Environment of the Early Vertebrates

1935 • 74 citations

THE HABITAT OF THE EARLY VERTEBRATES

1957 • 72 citations

A review of the habitat of the earliest vertebrates

1956 • 64 citations

Devonic fishes of the New York formations

2009 • 48 citations

Pycnaspis splendens, New Genus, New Species, a New Ostracoderm from the Upper Ordovician of North America

1958 • 47 citations

Cambrian Centropleura vermontensis fauna of northwestern Vermont

1937 • 47 citations

Evolution Emerging: A Survey of Changing Patterns from Primeval Life to Man

1951 • 38 citations

Conodonts from the Harding Formation (Middle Ordovician) of Colorado

1955 • 27 citations

The age and correlation of the Bighorn Formation of northwestern United States

1930 • 27 citations

Dutchtown fauna of southeastern Missouri

1938 • 26 citations

Ordovician Fossils From Upper Part of Type Section of Deadwood Formation, South Dakota

1936 • 25 citations

Ordovician conodonts from the Bighorn Mountains of Wyoming

1942 • 22 citations

The Harding sandstone of Colorado

1930 • 20 citations

Paleozoic stratigraphy of the Sawatch Range, Colorado

1944 • 19 citations

Geology of the Big Horn Mountains

1907 • 14 citations

Cephalopods from the Harding and Manitou formations of Colorado

1952 • 11 citations

Williston Basin Paleozoic Unconformities

1954 • 10 citations

Lower Ordovician fish remains from Missouri

1947 • 8 citations

Two trilobite genera from the Harding Formation (Ordovician) of Colorado

1952 • 6 citations

Ordovician and Devonian fish horizons in Colorado

1933 • 6 citations

Some Attempts at Phylogeny of Early Vertebrates

1953 • 4 citations

Visit to the gallery of fossil fishes, British Museum (Natural History)

1921 • 3 citations

Ordovician (?) Fish Remains in Colorado

1913 • 2 citations