Geology√

Taxonomy

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Geology√

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Geology√

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Geology√

1974 Archival description results for Geology√

1974 results directly related Exclude narrower terms

Arcs

Arcs. Primary double mountain arc of western United States. Jacobs et al., 1959, p. 296.

Arcs

Arcs. Active primary and secondary arcs of South America. Jacobs et al., 1959, p. 301.

Arcs

Arcs. Active primary and secondary arcs and lineaments of North America. Jacobs et al., 1959, p. 305.

Arcs

Generalized section across an active single island arc. Jacobs et al., 1959, p. 298.

Arcs

Arcs. Possible active arcs of North America in Carboniferous time. Jacobs et al., 1959, p. 319.

Arctic Ordivician fauna

Arctic Ordivician fauna (Nelson, 1959, pl. 2). Number: 1 Hormatoma (gastropod) 2 Winnipegoceras (cephalopod) 3 Lambeoceras (cephalopod) 4 Maclurites (gastropod)

Arctic Ordivician fauna

Arctic Ordivician fauna (Nelson, 1959, pl. 3). Number: 1 Cyrtogomphoceras (cephalopod) 2 Diestoceras (cephalopod) 3 Streptolasma trilobatum (solitary coral) 4 Lepidocyclus perlamellosus (rhynchonellia) 5. Aulacera undulata (columnar stromatoporoid)

Arctic Ordivician fauna

Arctic Ordivician fauna (Nelson, 1959, pl. 4). Number: 1 Bighornia patella (solitary coral) 2 Streptolasma angulatum (solitary coral) 3 Bighornia sp. (solitary coral) 4 Palaeofavasites (honeycomb coral) 5. Favasites (honeycomb coral) 6. Beatricia nodulosa (columnar stromatoporoid) 7. Billingsites (cephalopod) 8. Plaesiomys occidentalis (dinorthid)

Arctic Ordivician fauna

Arctic Ordivician fauna (Nelson, 1959, pl. 1). Number: 1 Recaptaculites (sponge?) 2 Grewingkia robusta (solitary coral) 3 Catenipora (chain coral) 4 Halysites (chain coral) 5 Manipora (chain coral) 6 Fusispira (gastropod)

Results 121 to 135 of 1974