Presentation and discussion of a classification of Cambrian, Ordovician, and Silurian strata recently adopted by the Iowa Geological Survey for use in this state
Recent marked tendency shown in Europe especially to give taxonomic rank comparable to geological pe...
Micropaleontological studies in the Iowa geologic section have been gaining impetus in the past few ...
Previously divided primarily on the basis of paleontologic units, the approximately 60-80 m thick Ho...
Presentation and discussion of a classification of Cambrian, Ordovician, and Silurian strata recentl...
Recently discovered Conodonts in the Oneota formation of Iowa are illustrated and their stratigraphi...
Recent necessary restriction of the stratigraphic span of the Cambric period to its original signifi...
Includes bibliographical references.Includes illustrations and maps.Samples from five cores plus sup...
Terranes older than those of Paleozoic age occupy in Iowa a very small area. Attention which has bee...
The most important geological discovery in Iowa in recent years is the revelation that our Devonic d...
Iowa\u27s mid-continental location has made its area one of the last to be reached by the successive...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
The great Devonic limestone succession in Iowa was long treated as if it were a single stratigraphic...
Recent marked tendency shown in Europe especially to give taxonomic rank comparable to geological pe...
Micropaleontological studies in the Iowa geologic section have been gaining impetus in the past few ...
Previously divided primarily on the basis of paleontologic units, the approximately 60-80 m thick Ho...
Presentation and discussion of a classification of Cambrian, Ordovician, and Silurian strata recentl...
Recently discovered Conodonts in the Oneota formation of Iowa are illustrated and their stratigraphi...
Recent necessary restriction of the stratigraphic span of the Cambric period to its original signifi...
Includes bibliographical references.Includes illustrations and maps.Samples from five cores plus sup...
Terranes older than those of Paleozoic age occupy in Iowa a very small area. Attention which has bee...
The most important geological discovery in Iowa in recent years is the revelation that our Devonic d...
Iowa\u27s mid-continental location has made its area one of the last to be reached by the successive...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
The great Devonic limestone succession in Iowa was long treated as if it were a single stratigraphic...
Recent marked tendency shown in Europe especially to give taxonomic rank comparable to geological pe...
Micropaleontological studies in the Iowa geologic section have been gaining impetus in the past few ...
Previously divided primarily on the basis of paleontologic units, the approximately 60-80 m thick Ho...
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