Tissotia tissoti Ammonite Fossil Morocco Cretaceous Santonian COA Genuine Upper Cretaceous Marine Cephalopod Display Specimen

Description

Genuine Tissotia tissoti Ammonite Fossil

This listing is for a genuine Tissotia tissoti ammonite fossil from Morocco, dating to the Santonian Stage of the Upper Cretaceous. This fossil represents an extinct marine cephalopod from a time when warm Cretaceous seas covered large areas of North Africa, supporting a rich diversity of ammonites, bivalves, gastropods, fish, sharks, marine reptiles, and other marine life.

Tissotia tissoti is a collectible Cretaceous ammonite species with strong scientific and display appeal. Its distinctive shell form, Upper Cretaceous age, and Moroccan origin make it an excellent specimen for fossil collectors, educational displays, natural history cabinets, and geology-themed collections. This fossil is a carefully chosen piece, and the photo shows the actual specimen you will receive. Full sizing can be seen in the photo.

Geology, Age and Moroccan Origin

This ammonite comes from the Upper Cretaceous deposits of Morocco, a country well known for its fossil-rich marine rocks. During the Santonian, approximately 86 to 83 million years ago, much of the region that is now Morocco lay close to warm shallow seas connected to the ancient Tethys Ocean and Atlantic marine systems. These marine environments created ideal conditions for ammonites and other shelled organisms to thrive.

The Santonian Stage sits within the Late Cretaceous Period, after the Coniacian and before the Campanian. Fossils from this age are important because they document marine life during a period of high global sea levels, when broad epicontinental seas spread across many continents. Fine sediment, carbonate-rich seabeds, and shallow marine settings helped preserve the remains of ammonites and other invertebrates in the fossil record.

Moroccan Cretaceous ammonites are especially popular among collectors because they often show strong natural form, attractive preservation, and clear species-level identification. A Tissotia tissoti specimen from Morocco offers a direct link to the marine ecosystems of North Africa during the later part of the Cretaceous, when ammonites were still highly successful and diverse.

Fossil Type and Species Details

Tissotia tissoti was an ammonite, an extinct member of the cephalopod group, related to modern squid, cuttlefish, octopus, and nautilus. Like other ammonites, it possessed a coiled external shell divided into internal chambers. The living animal occupied the final body chamber, while the earlier chambers helped control buoyancy as it moved through the water.

The genus Tissotia is known for its robust ammonite shell form and belongs to the Late Cretaceous ammonoid faunas that are widely used by palaeontologists for dating and correlating marine rocks. Tissotia ammonites commonly have a compressed to moderately inflated shell profile, strong whorl development, and a sculptural form that can include ribs, tubercles, or a defined outer margin depending on growth stage and preservation.

Scientific classification places Tissotia within Phylum Mollusca, Class Cephalopoda, Subclass Ammonoidea, Order Ammonitida, Superfamily Acanthoceratoidea, and Family Tissotiidae. The species Tissotia tissoti is associated with the classic Santonian ammonite faunas of North Africa and the wider Tethyan region.

Cretaceous Marine Environment

During the Upper Cretaceous, ammonites such as Tissotia tissoti lived in open marine to shallow shelf environments. These animals were active swimmers or drifting predators and scavengers within the marine food web. Their shells provided both protection and buoyancy control, allowing them to occupy different levels of the water column.

The seas of Santonian Morocco would have contained a wide range of marine organisms. Ammonites shared their environment with other cephalopods, bivalves, echinoids, corals, fish, sharks, and marine reptiles. The sediment that eventually formed the fossil-bearing rock preserved evidence of these ancient ecosystems, making Moroccan Cretaceous fossils highly desirable for both collectors and educational use.

Collectible Upper Cretaceous Ammonite

This Tissotia tissoti ammonite fossil is a superb example of a named Upper Cretaceous ammonite from Morocco. Its geological age, attractive fossil type, and association with Santonian marine deposits make it a meaningful addition to any collection focused on ammonites, Cretaceous fossils, Moroccan fossils, marine reptiles and sea life, or the ancient Tethys Ocean.

The fossil is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card. The photograph shows the actual fossil you will receive, giving buyers confidence that this is the carefully selected specimen being offered. This is a highly appealing display fossil for collectors, students, natural history enthusiasts, and anyone interested in the remarkable ammonites that lived in the warm seas of the Upper Cretaceous.