†Calycoceras spinosum Wright and Wright 1951 (ammonite)
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Cephalopoda - Ammonitida - Acanthoceratidae
Alternative combination: Calycoceras newboldi spinosa
Belongs to Calycoceras according to T. Matsumoto 1959
Sister taxa: Calycoceras (Calycoceras), Calycoceras (Conlinoceras), Calycoceras (Gentoniceras), Calycoceras (Hourcqiceras), Calycoceras (Newboldiceras), Calycoceras (Proeucalycoceras), Calycoceras bathyomphalum, Calycoceras boulei, Calycoceras choffati, Calycoceras lafouxiense, Calycoceras robustum
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of France (2 collections), the United Kingdom (4), United States (2: California)
Total: 8 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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