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  • Fossil - Ammonites - Perisphinctes sp.

Fossil - Ammonites - Perisphinctes sp.

White Spined Ammonites belong to the Perisphinctes genus which contains no less than 14 different species. This genus of ammonites has a cosmopolitan distribution being particularly widespread in warm-temperate waters worldwide. Shells belonging to this genus have been found in the Jurassic of Antarctica, Argentina, Chile, Cuba, Egypt, Ethiopia, France, Germany, Hungary, India, Iran, Italy, Japan, Madagascar, Poland, Portugal, Russia, Saudi Arabia, Spain, Switzerland, the United Kingdom and Yemen. 

Perisphinctes sp. ammonites are an extremely import index taxa for identifying Late Jurassic strata in the fossil record.  It has been suggested that they lived in the inner part of the continental shelf and shelf seas interior. It has been suggested that food web collapse and ocean acidification resulted in their extinction. In that, ocean acidification towards the end of the Cretaceous likely dissolved the shells of their microscopic young, which floated on the ocean's surface early in their life-cycle. Whilst devastation of plankton species during this period impacted on their primary food source.  

Polished/Natural Cascading Elestial Smokey, Emeralds In Mica, Rhodonite, Jigsaw Ammonite, White Phantom Quartz & Twin Amethyst Mixed Specimens x 6 From Southern Africa - TopRock

Polished/Natural Cascading Elestial Smokey, Emeralds In Mica, Rhodonite, Jigsaw Ammonite, White Phantom Quartz & Twin Amethyst Mixed Specimens x 6 From Southern Africa

R 870.00 ZAR
Natural White Spined Selected Ammonite Fossil Set In Copper Art Wire Wrap x 1 From Madagascar - TopRock

Natural White Spined Selected Ammonite Fossil Set In Copper Art Wire Wrap x 1 From Madagascar

R 90.00 ZAR
Natural Perisphinctes Virguloides White Spined Ammonites x 6 From Morandave, Madagascar - TopRock

Natural Perisphinctes Virguloides White Spined Ammonites x 6 From Morandave, Madagascar

R 650.00 ZAR
Natural Perisphinctes Virguloides White Spined Ammonite Fossil x 1 From Morandave, Madagascar - TopRock

Natural Perisphinctes Virguloides White Spined Ammonite Fossil x 1 From Morandave, Madagascar

R 631.00 ZAR
Natural Perisphinctes Virguloides White Spined Ammonite Fossil x 1 From Morandave , Madagascar - TopRock

Natural Perisphinctes Virguloides White Spined Ammonite Fossil x 1 From Morandave , Madagascar

R 589.00 ZAR
Natural Perisphinctes Virguloides White Spined Fossil Ammonites x 2 From Morandave , Madagascar - TopRock

Natural Perisphinctes Virguloides White Spined Fossil Ammonites x 2 From Morandave , Madagascar

R 803.00 ZAR
Natural Perisphinctes Virguloides White Spined Fossil Ammonites x 3 From Morandave , Madagascar - TopRock

Natural Perisphinctes Virguloides White Spined Fossil Ammonites x 3 From Morandave , Madagascar

R 606.00 ZAR
Natural White Spined Ammonite Fossil x 1 From Morandave , Madagascar - TopRock

Natural White Spined Ammonite Fossil x 1 From Morandave , Madagascar

R 673.00 ZAR
Natural White Spined Ammonite Fossils x 3 From Madagascar - TopRock

Natural White Spined Ammonite Fossils x 3 From Madagascar

R 790.00 ZAR
Natural Ammonite Coquille Blanc Fossils (White Spine)  x 2 From Madagascar - TopRock

Natural Ammonite Coquille Blanc Fossils (White Spine) x 2 From Madagascar

R 690.00 ZAR
Natural White Spined Ammonite Fossils x 2 From Morondova , Madagascar - TopRock

Natural White Spined Ammonite Fossils x 2 From Morondova , Madagascar

R 789.00 ZAR
Natural White Spined Ammonite Fossils x 6 From Madagascar - TopRock

Natural White Spined Ammonite Fossils x 6 From Madagascar

R 633.00 ZAR
Natural Iridescent Ammonite & White Spined Ammonite Fossils x 2 From Madagascar - TopRock

Natural Iridescent Ammonite & White Spined Ammonite Fossils x 2 From Madagascar

R 719.00 ZAR
Natural White Spined Ammonite In Art Copper Wire Pendant -  sold per piece - From South Africa - TopRock

Natural White Spined Ammonite In Art Copper Wire Pendant - sold per piece - From South Africa

R 100.00 ZAR
Natural Perisphinctes Virguloides White Spined Ammonite Fossils x 2 From Madagascar - TopRock

Natural Perisphinctes Virguloides White Spined Ammonite Fossils x 2 From Madagascar

R 621.00 ZAR
Natural Medium Sized White Spine Ammonites x 6 from Madagascar - TopRock

Natural Medium Sized White Spine Ammonites x 6 from Madagascar

R 624.00 ZAR
Natural Perisphitide Virguloides White Spin Ammonites x 3 from Madagascar - TopRock

Natural Perisphitide Virguloides White Spin Ammonites x 3 from Madagascar

R 583.00 ZAR
Natural White Spin & Medium Sized Ammonite Specimens x 6 from Madagascar - TopRock

Natural White Spin & Medium Sized Ammonite Specimens x 6 from Madagascar

R 508.00 ZAR
Natural Perisphinctes virguloides White Spin Ammonite Large Specimens x 6 from Madagascar - TopRock

Natural Perisphinctes virguloides White Spin Ammonite Large Specimens x 6 from Madagascar

R 601.00 ZAR
Natural Perisphinctes Virguloides White Spine Ammonites x 6 from Mahaganja, Madagascar - TopRock

Natural Perisphinctes Virguloides White Spine Ammonites x 6 from Mahaganja, Madagascar

R 531.00 ZAR
Natural Medium Sized White Spin Ammonites (Jurassic Period) x 6 from Madagascar - TopRock

Natural Medium Sized White Spin Ammonites (Jurassic Period) x 6 from Madagascar

R 560.00 ZAR
Natural Rough White Spine Ammonite Specimens x 6 from Madagascar - TopRock

Natural Rough White Spine Ammonite Specimens x 6 from Madagascar

R 566.00 ZAR

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