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Mammites Nodosoides Ammonites

SKU:TFS1020

Regular Price: £68.00

Special Price £48.00

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Mammites Nodosoides 125mm TFS1020, 614 g
Mammites Nodosoides 110mm TFS1021, 425 g (juvenile central whorl repaired)
Mammites Nodosoides 115mm TFS1022, 562 g
Mammites Nodosoides 130mm TFS1023, 797 g
Mammites Nodosoides 135mm TFS1024, 884 g

Genus: Mammites nodosoides, described by Laube and Bruder in 1887.
Age: Upper Cretaceous Period, Early to late Turonian Stage, 94.3 to 89.3 m.y.a.
Environment/lithology: lithified, concretionary marl, Mammites nodosoides Zone.
Geological Location: N.E. Asfla, Goulmima, Er-rachidia province, Anti Atlas, Morocco.

Reference: W. J. Kennedy, A. S. Gale, D. J. Ward and C. J. Underwood. 2008. Early Turonian ammonites from Goulmima, southern Morocco. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique.

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Details

Each specimen ammonite has full unbroken ornamentation of the stumpy tubercles, the whole form is good to each, some with excellent ammonitic suture patterning. All collector grade specimens. Enlarge the illustrations above to view the attributes for each ammonoid. When ordering use the reference number in each image to identify your fossil purchase. If you need help contact us via our contact page-in the black footer banner below.


The shell ornamentation is dominated with short stumps, these are umbilical tubercles and were part of the shells defences. Ribs are prominent in juveniles stages but tend to be less prominent in the mature cephalopod shell, when fully developed, one may reflect the need of defence became less important, becoming a fast moving nektonic carnivore in adulthood, with fewer predators when mature in size.


However there is debate on whether what appear to be spine placements were for defence or sexual morphism, distinguishing the males and females. The debates will continue as new discoveries may become apparent, particularly from this extensive fossil source in central, south eastern Morocco.


The suture patterning is a simple ammonitic type. These ammonites are from the Early Turonian Stage (Upper Cretaceous) found North of Goulmima, Morocco. Primary reference: W. J. Kennedy, A. S. Gale, D. J. Ward and C. J. Underwood. 2008. Early Turonian ammonites from Goulmima, southern Morocco. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Sciences de la Terre 78:149-177.

Additional Information

SKU TFS1020
Age Cretaceous
Origin Morocco
Colour Brown