Ritchie, Alexander
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8

Rhipidistians (Sarcopterygii) from the Hunter Siltstone (La..:

Johanson, Zerina ; Ritchie, Alexander
Mitteilungen aus dem Museum für Naturkunde in Berlin. Geowissenschaftliche Reihe.  3 (2000)  1 - p. 111-136 , 2000
 
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9

A new Late Famennian lungfish from New South Wales, Austral..:

Johanson, Zerina ; Ritchie, Alexander
Alcheringa: An Australasian Journal of Palaeontology.  24 (2000)  2 - p. 99-118 , 2000
 
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10

Geology of the platanares geothermal area, Departamento de ..:

Heiken, Grant ; Ramos, Napoleon ; Duffield, Wendell...
Journal of Volcanology and Geothermal Research.  45 (1991)  1-2 - p. 41-58 , 1991
 
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12

Ateleaspis tessellata Traquair, a non-cornuate cephalaspid ..:

Ritchie, Alexander
Journal of the Linnean Society of London, Zoology.  47 (1967)  311 - p. 69-81 , 1967
 
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13

New light on the morphology of the Norwegian Anaspida 

Skrifter / Norske Videnskaps-Akademi i Oslo, Matematisk-Naturvidenskapelig Klasse ; N.S., 14
Copies:  Zentrale:Magazin ab 5966
 
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