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Kokolik River

Introduction Northern Alaska Map     Kokolik Unassigned Fossils Fossil Images

 

Interactive map of western northern Alaska showing the positions of the plant fossil localities along the Kokolik River. Some specimens are representative of taxa occuring throughout the Kokolik sections and are unassigned. Where specimens are assigned to specific localities the 'Fossil Images' link becomes active.

Locality 98RAS06:

69.418175°N -161.361317°W

 

  

Interactive map of the Kokolik River localities Hotspot linking to Kokolik 98RAS02 locality Hotspot linking to Kokolik 98RAS03 locality Hotspot linking to Kokolik 98RAS04 locality Hotspot linking to Kokolik 98RAS05 locality Hotspot linking to Kokolik 98RAS07 locality Hotspot linking to Kokolik 98RAS08 locality Hotspot linking to Kokolik 98RAS09 locality Hotspot linking to Kokolik 98RAS10locality Hotspot linking to Kokolik 98RAS11 locality Hotspot linking to Kokolik 98RAS12 locality Hotspot linking to Kokolik 98RAS13 locality Hotspot linking to Kokolik 98RAS14 locality Hotspot linking to Kokolik 98RAS15 locality Hotspot linking to Kokolik locality 98RAS01

 

Locality Description:

Light gray, weathering to yellow/orange very fine sands and silts with clay ironstone (weathering yellow/orange) sheets near the waterline. Clay ironstones are very rich in Desmiophyllum magnum, Pityophyllum (less common), Thallites, Nilssoniopteris and Sphenobaiera. Branch wood and ironstone-preserved logs. Some of these are rooted in the sandstones, but these are rare.

Field photograph of Kokolik leaves   Field photograph of fossil leaves (Pityophyllum, Nilssoniopteris, Sphenobaiera, Desmiophyllum etc.) from the Kokolik River sections.

 

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