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George Marion Ehlers

22 cilt bulundu.

Cilt sonuçları

PaleontologyCorals of the Devonian Traverse group of MichiganGeorge Marion Ehlers

Corals of the Devonian Traverse group of Michigan

George Marion Ehlers · University of Michigan Press

Sayfa sayısı yok · 1949

Fossil Corals / Paleontology

PaleontologyDiscovery of a Hamilton fauna in southeastern MichiganGeorge Marion Ehlers

Discovery of a Hamilton fauna in southeastern Michigan

George Marion Ehlers · University of Michigan

236 sayfa · 1927

Fossil Animals / Paleontology

PaleontologyNew brachiopods from the Warsaw formation of Wayne county, KentuckyGeorge Marion Ehlers

New brachiopods from the Warsaw formation of Wayne county, Kentucky

George Marion Ehlers · University of Michigan

111 sayfa · 1926

Fossil Animals / Fossil Brachiopoda / Paleontology

PaleontologyNew species of the brachiopod Cyrtina from the Middle Devonian Hamilton strata of southwestern OntarioGeorge Marion Ehlers

New species of the brachiopod Cyrtina from the Middle Devonian Hamilton strata of southwestern Ontario

George Marion Ehlers · Museum of Paleontology, University of Michigan

162 sayfa · 1975

Cyrtina / Paleontology

Pachyphyllum vagabundumPachyphyllum vagabundumGeorge Marion Ehlers

Pachyphyllum vagabundum

George Marion Ehlers · University of Michigan Press

Sayfa sayısı yok · 1949

Pachyphyllum vagabundum

PaleontologyRevision of Alexander Winchell's types of Brachiopods from the middle Devonian Traverse group of rocks of MichiganGeorge Marion Ehlers

Revision of Alexander Winchell's types of Brachiopods from the middle Devonian Traverse group of rocks of Michigan

George Marion Ehlers · University of Michigan press

176 sayfa · 1934

Fossil Animals / Fossil Brachiopoda / Paleontology

PaleontologyRevision of E. A. Strong's species from the Mississippian Point au Gres limestone of Grand Rapids, MichiganGeorge Marion Ehlers

Revision of E. A. Strong's species from the Mississippian Point au Gres limestone of Grand Rapids, Michigan

George Marion Ehlers · University of Michigan press

130 sayfa · 1944

Paleontology

Stratigraphic GeologySilurian rocks of the northern peninsula of MichiganGeorge Marion Ehlers

Silurian rocks of the northern peninsula of Michigan

George Marion Ehlers · Michigan Geological Society

63 sayfa · 1957

Geology / Guidebooks / Stratigraphic Geology

Stratigraphic GeologyStratigraphy of the Niagaran series of the Northern Peninsula of MichiganGeorge Marion Ehlers

Stratigraphy of the Niagaran series of the Northern Peninsula of Michigan

George Marion Ehlers · Museum of Paleontology [University of Michigan]

200 sayfa · 1973

Geology / Stratigraphic Geology

GeologyStratigraphy and structure of the Devonian rocks in southeastern Michigan and northwestern OhioGeorge Marion Ehlers

Stratigraphy and structure of the Devonian rocks in southeastern Michigan and northwestern Ohio

George Marion Ehlers · Michigan Geological Society

40 sayfa · 1952

Stratigraphic Geology / Guidebooks / Geology

PaleontologyTwo new crinoids from the Devonian of MichiganGeorge Marion Ehlers

Two new crinoids from the Devonian of Michigan

George Marion Ehlers · University of Michigan

104 sayfa · 1925

Fossil Crinoidea / Paleontology

PaleontologyThe type species of Spinocyrtia Fredericks and new species of this brachiopod genus from southwestern OntarioGeorge Marion Ehlers

The type species of Spinocyrtia Fredericks and new species of this brachiopod genus from southwestern Ontario

George Marion Ehlers · Museum of Paleontology, University of Michigan

32 sayfa · 1955

Spinocyrtia Fredericks / Paleontology

CiltCyclic pattern of ambulacral covering plates in Discocystis laudoni and its taxonomic implicationGeorge Marion Ehlers

Cyclic pattern of ambulacral covering plates in Discocystis laudoni and its taxonomic implication

George Marion Ehlers · Museum of Paleontology, University of Michigan

276 sayfa · 1958

Kategori yok

PaleontologyLeioptera rafinesquii Hall and a new species of the genus from the Thedford-Arkona region of southwestern OntarioGeorge Marion Ehlers

Leioptera rafinesquii Hall and a new species of the genus from the Thedford-Arkona region of southwestern Ontario

George Marion Ehlers · Museum of Paleontology, University of Michigan

13 sayfa · 1959

Leioptera rafinesquii / Paleontology

Fossil MollusksCyrtina hamiltonensis (Hall) and a new species of this brachiopod genus from New YorkGeorge Marion Ehlers

Cyrtina hamiltonensis (Hall) and a new species of this brachiopod genus from New York

George Marion Ehlers · Museum of Paleontology, University of Michigan

204 sayfa · 1963

Cyrtina hamiltonensis / Cyrtina darlenensis / Fossil Mollusks

PaleontologyOrdovician and Silurian strata from well core in Schoolcraft County, MichiganGeorge Marion Ehlers

Ordovician and Silurian strata from well core in Schoolcraft County, Michigan

George Marion Ehlers · Museum of Paleontology, the University of Michigan

229 sayfa · 1967

Paleontology

PaleontologyA new eurypterid from the upper Devonian of PennsylvaniaGeorge Marion Ehlers

A new eurypterid from the upper Devonian of Pennsylvania

George Marion Ehlers · University of Michigan Press

294 sayfa · 1935

Eurypterida / Paleontology

PaleontologyLeiopteria rafinesquii HallGeorge Marion Ehlers

Leiopteria rafinesquii Hall

George Marion Ehlers · University of Michigan Press

13 sayfa · 1959

Fossil Mollusks / Paleontology

PaleontologyFrancis de Castelnau's Essai sur le système silurien de l'Amérique septentrionale and the status of his Spirifer huroniensisGeorge Marion Ehlers

Francis de Castelnau's Essai sur le système silurien de l'Amérique septentrionale and the status of his Spirifer huroniensis

George Marion Ehlers · Museum of Paleontology, University of Michigan

180 sayfa · 1957

Spirifer huroniensis / Paleontology

SpongophyllumSpongophyllum missourienseGeorge Marion Ehlers

Spongophyllum missouriense

George Marion Ehlers · University of Michigan Press

296 sayfa · 1952

Spongophyllum

PaleontologyCylindrophyllum panicum (Winchell) and Cylindrophyllum hindshawi, sp. nov., Tetracoralla from the Traverse group of MichiganGeorge Marion Ehlers

Cylindrophyllum panicum (Winchell) and Cylindrophyllum hindshawi, sp. nov., Tetracoralla from the Traverse group of Michigan

George Marion Ehlers · University of Michigan press

100 sayfa · 1932

Cylindrophyllum hindshawi / Cylindrophyllum panicum / Paleontology

GeologyDevonian rocks of southeastern Michigan and northwestern OhioGeorge Marion Ehlers

Devonian rocks of southeastern Michigan and northwestern Ohio

George Marion Ehlers · Yayınevi bilinmiyor

40 sayfa · 1951

Stratigraphic Geology / Geology