Scaphites cf. nodosus Macroconch Ammonite Fossil Fox Hills Maastrichtian Montana – Genuine Cretaceous USA Collector Specimen with COA

Description

Scaphites cf. nodosus Macroconch Ammonite Fossil

Maastrichtian Fossil from the Upper Cretaceous

This genuine Scaphites cf. nodosus macroconch ammonite fossil comes from Montana, USA. It was found in the Fox Hills Formation and dates to the Maastrichtian Stage of the Upper Cretaceous Period. With a carefully stated identification, a recognised adult shell form, documented formation and state locality, it is an engaging specimen for ammonite collectors, geology students, palaeontology enthusiasts and anyone building a cabinet of authentic prehistoric objects.

The photographs show the actual fossil you will receive. Its individual shape, colour, preservation, matrix and visible surface detail belong to this exact specimen, so both images should be examined carefully when considering its character and condition.

The Scaphites cf. nodosus Identification

Scaphites is an extinct ammonite genus known for the distinctive uncoiled or partly uncoiled form developed during later growth. Unlike a simply coiled ammonite throughout life, a scaphitid shell typically combines an earlier coiled portion with a later body chamber that departs from the regular spiral. This unusual shell plan makes scaphites particularly recognisable among Cretaceous ammonites.

The identification is written as Scaphites cf. nodosus. In palaeontological naming, the abbreviation “cf.” indicates that the fossil is compared with, or shows an affinity to, the named species nodosus. This careful notation preserves the supplied identification without presenting the species assignment as more definite than the evidence supports.

Macroconch Shell Form

This specimen is described as a macroconch. In ammonite studies, macroconch refers to the larger adult shell form in a dimorphic pairing. Macroconchs are commonly considered alongside smaller microconch forms when researchers examine variation within related ammonite populations. The designation adds useful biological and morphological context to the specimen.

Features considered when studying scaphitid ammonites can include the shape of the coiled portion, the development of the later body chamber, the form of the opening and the arrangement of ribs, nodes or other ornament. Please use the photographs as the definitive visual guide to the morphology and preservation visible on this individual fossil.

Fox Hills Formation Geology

The Fox Hills Formation is an Upper Cretaceous rock unit associated with the later history of the Western Interior Seaway in North America. Its sediments record marine and nearshore environments as the broad inland sea changed and retreated. Fossils from the formation provide evidence of the organisms that inhabited those latest Cretaceous waters.

The Maastrichtian is the final stage of the Cretaceous Period. A scaphitid ammonite from this interval represents marine life from near the end of the Mesozoic Era. The stated Montana locality gives the fossil a clear geographical context alongside its formation, geological stage and cautious taxonomic identification.

Natural Condition and Display

Fossils are natural geological objects rather than manufactured ornaments. Variations in surface texture, incomplete areas, mineral deposits, attached matrix and differences in colour may reflect burial, fossilisation, weathering and preparation. These characteristics are part of the specimen’s history and help make every genuine fossil unique.

This Scaphites macroconch is suitable for a fossil cabinet, natural history collection, classroom, office, study set or geology-themed display. It may also make a thoughtful gift for a fossil collector, amateur palaeontologist, geology student or admirer of prehistoric marine life.

For full sizing, please refer to the photographs. The pictured fossil is the actual carefully chosen specimen supplied, not a representative example. Both images provide the best guide to its dimensions, shell form, matrix, visible ornament and overall preservation.

Authenticity and Certificate

This is a genuine fossil specimen. It includes a generic Certificate of Authenticity lifetime guarantee card, providing an enduring authenticity assurance for the collector. The card will accompany the fossil.

You will receive one Scaphites cf. nodosus macroconch ammonite fossil from the Maastrichtian Upper Cretaceous Fox Hills Formation of Montana, USA, together with its Certificate of Authenticity card. The exact fossil shown in the listing photographs is the specimen that will be sent.