Taxonomic Studies of Lower Jurassic Radiolaria from East-central Oregon |
Contents
ACKNOWLEDGEMENTS | 1 |
INDEX MAP OF SUPLEEIZEE AREA | 4 |
STRATIGRAPHIC SUMMARY | 10 |
7 other sections not shown
Common terms and phrases
abdomen alternating with three ammonites apical bachian to lower Bistarkum Boreal Realms Canoptum central Oregon Cephalis conical costae covered with layer Crubus Deposition of types distally east-central Oregon Etymology Fantus Farcus figures final post-abdominal chamber form differs Formation of east-central Gorgansium hexagonal pore frames Holotype Mean holotype NMNS holotype plus paratypes horn Hyde Formation Katroma known layer of microgranular Locality Descriptions Lower Jurassic Lower Toarcian LT maxi massive Maximum ment shown microgranular silica Minimum Napora Nicely Formation nodes at vertices Noritus paratype NMNS Pessagno and Blome Pessagno and Whalen Plate 11 Plate 23 Pliensbachian polar spines polygonal pore frames pore frames Poulpus Praeconocaryomma primary spines Pseudopoulpus Pseudoristola Radiolaria Range and Occurrence rays Remarks Rolumbus Saitoum Scale shown in text-figure Snowshoe Formation Specimen pyritized specimens holotype System of measure terrane Tethyan and Boreal Tethyan Realm Tetratrabs thorax Turanta Type genus Type locality Type species Upper Pliens upper Pliensbachian Warm Springs Member width