Intraspecific variation of Svalbardiceras spitzbergensis (Frebold) from the Early Triassic (Spathian) of Spitsbergen

• Published in: Polar Research
• Main Author: Weitschat, Wolfgang
• Format: Article in Journal/Newspaper
• Language: English
• Published: Norwegian Polar Institute 2008
• Subjects: Svalbard; Sassendalen; Vikinghøgda; Vendomdalen; Polar Research; Spitsbergen
• Online Access: https://polarresearch.net/index.php/polar/article/view/2891; https://doi.org/10.3402/polar.v27i3.6185

The ammonoid species Svalbardiceras spitzbergensis from the latest Early Triassic (Spathian, subrobustus Zone) shows a remarkable intraspecific variation. The more than 400 specimens studied come from one fossiliferous carbonate nodule layer within a sequence of mudstones and clayey siltstones of th...