Description
Offered here is a beautifully preserved and scientifically important specimen of the ammonite Himalayites treubii, collected from the Valanginian Stage of the Early Cretaceous Period, originating in the French Alps. This ammonite represents a key genus in the understanding of Early Cretaceous ammonoid evolution and comes from the distinguished Alice Purnell Collection. The photo provided shows the exact specimen you will receive.
Geological Context:
- Species: Himalayites treubii
- Geological Period: Cretaceous
- Stage: Valanginian (~139.8 to 132.6 million years ago)
- Location: French Alps, France
- Depositional Environment: Marine basin with fine-grained limestone and marl sedimentation typical of an outer shelf setting in a warm, shallow sea
Taxonomic Classification:
- Family: Himalayitidae
- Superfamily: Perisphinctoidea
- Order: Ammonitida
- Suborder: Ammonitina
- Formally Described By: Uhlig, 1903
Morphological Features:
Himalayites treubii exhibits a compressed and evolute shell with prominent ribbing and moderately strong tuberculation, particularly around the ventrolateral margins. The ribs are typically sharp and may bifurcate mid-flank. These features are clearly visible in this specimen and are diagnostic of the genus. The shell’s ornamentation and form reflect adaptations to active nektonic (free-swimming) life in open marine waters.
Stratigraphic and Palaeontological Significance:
Himalayites species are important marker fossils for the Valanginian biozones, particularly within Tethyan faunal provinces. Their wide geographic distribution across ancient shallow seas helps correlate strata from Europe to Southeast Asia and parts of Gondwana. Their presence often signals important evolutionary radiation events following Jurassic-Cretaceous faunal turnovers.
Additional Details:
- All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
- Scale Rule Squares / Cube = 1cm: Full sizing is visible in the listing photo.
- From the scientifically respected Alice Purnell Collection.
This specimen is an excellent choice for collectors, researchers, or educators seeking a rare ammonite that illustrates key evolutionary traits of Early Cretaceous marine life.
Secure a stunning and informative fossil today from deep geological time.
Reviews
There are no reviews yet.