Texanites texanus Ammonite Fossil Cretaceous Santonian Madagascar Genuine COA UK Rare Collector Display Specimen Certificate

Description

Genuine Texanites texanus Ammonite Fossil from Madagascar

This listing is for a genuine Texanites texanus ammonite fossil from the Upper Cretaceous, Santonian deposits of Beloha, Toliara, Madagascar. This is a carefully chosen fossil specimen, selected for its natural prehistoric interest, attractive display appeal, and collectable scientific value. The photograph shows the actual fossil you will receive, allowing you to view the individual preservation, colour, shape, texture, and character of the specimen before purchase.

This fossil includes a Certificate of Authenticity lifetime guarantee generic card, confirming that it is a genuine fossil specimen and not a modern replica. Full sizing information can be seen in the listing photograph.

Fossil Type and Species

Texanites texanus is an ammonite, an extinct marine cephalopod that lived during the Late Cretaceous Period. Ammonites were related to modern squid, cuttlefish, octopus, and nautilus, and they are among the most famous fossils found in marine sedimentary rocks. Their coiled shells, chambered internal structure, and rapid evolutionary changes make them highly valued by collectors and important to geology.

Texanites belongs to the ammonoid order Ammonitida and is generally associated with the family Collignoniceratidae, a group of Cretaceous ammonites often noted for strong ornamentation, ribbing, tubercles, and distinctive shell forms. The species Texanites texanus is especially desirable because it is a named ammonite species rather than an unidentified ammonite fossil, giving it added scientific and collectable interest.

Geological Age and Santonian Setting

This fossil dates from the Santonian stage of the Upper Cretaceous, making it approximately 83 to 86 million years old. During the Santonian, global sea levels were high and warm shallow seas covered large areas of the world. These marine environments supported a rich diversity of prehistoric life, including ammonites, belemnites, bivalves, gastropods, echinoids, fish, sharks, marine reptiles, and many other ancient sea creatures.

The fossil comes from Beloha, in the Toliara region of Madagascar, an area known for Cretaceous marine fossils. During the Late Cretaceous, Madagascar was part of a changing southern-hemisphere marine world, with coastal and shelf environments where ammonites thrived. Shells from these animals settled into marine sediments after death and were gradually buried, mineralised, and preserved over millions of years.

Morphology and Natural Features

Ammonites such as Texanites texanus had planispiral shells, meaning the shell coiled in a flat spiral. The shell was divided into internal chambers, with the living animal occupying the final outer chamber. Earlier chambers helped control buoyancy, allowing the ammonite to move through the water column in search of food and safety.

Texanites ammonites are particularly attractive to collectors because many examples show bold shell ornamentation. Depending on preservation, specimens may display strong ribs, raised nodes or tubercles, whorl curvature, growth lines, suture detail, and natural surface texture. These features reflect the original shell architecture of the animal and help give Texanites its distinctive Cretaceous appearance. The combination of strong form, named species identification, and Madagascan locality makes this a desirable fossil for both display and study.

Collector Appeal and Display Value

This Texanites texanus ammonite fossil from Madagascar is an excellent addition to a fossil collection, natural history cabinet, educational geology set, classroom display, or decorative curiosity collection. It is ideal for collectors interested in Cretaceous ammonites, Madagascan fossils, marine cephalopods, prehistoric sea life, named fossil species, and genuine fossils with certificates.

The Santonian age makes this fossil a fascinating example of later ammonite evolution, from a time long after the classic Jurassic ammonites but before the extinction of ammonites at the end of the Cretaceous Period. Its natural shape and geological background give it strong educational value, while its collectable species name and display appeal make it suitable for fossil enthusiasts, students, teachers, and gift buyers.

Authenticity and Specimen Information

You will receive the actual Texanites texanus ammonite fossil shown in the photograph, not a stock image or random example. Please see the photo for full sizing and visual condition.

This genuine fossil is supplied with a Certificate of Authenticity lifetime guarantee generic card, making it a reliable and collectable specimen for anyone seeking a real Upper Cretaceous Santonian ammonite from Madagascar with strong natural history interest and excellent display potential.