Tappan, H. (1955). Foraminifera from the Arctic Slope of Alaska. Part 2, Jurassic Foraminifera. United States Geological Survey Professional Papers. 236-B: 1-124.
278077
Tappan, H.
1955
Foraminifera from the Arctic Slope of Alaska. Part 2, Jurassic Foraminifera
United States Geological Survey Professional Papers
A fauna of 111 species of Foraminifera was obtained from Jurassic strata of northern Alaska, ranging in age from Early Jurassic or Liassic of Europe (Sinemurian, Pliensbachian, and Toarcian) to Late Jurassic (Callovian and upper Oxfordian- Kimmeridgian). This includes the first Lower Jurassic foraminiferal fauna to be recorded from the western hemisphere, and it correlates closely with the Liassic faunas of Germany, France, and England. A few of the species were found in outcrops, but the major part of the fauna was obtained from core samples from wells drilled in Naval Petroleum Reserve No. 4, in the Arctic Coastal Plain province of northern Alaska. Thirty-three genera of Foraminifera are represented, belonging to 11 families. The family Nodosariidae has 74 species, 8 belong to the Lituolidae, 7 to the Tolypamminidae, 5 to the Verneuilinidae, 4 each to the Reophacidae, Trochamminidae, and Polymorphinidae, 2 to the Textulariidae and one each to the Rhizamminidae, Hyperamminidae, and Valvulinidae. Thirty-six of the species are described as new, and 4 new names are proposed for homonyms