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Mammites Nodosoides Ammonites

SKU:TFS1020

Regular Price: £82.00

Special Price £35.00

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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 fine ammonitic suture patterning.

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Mammites Nodosoides 110mm TFS1021 - 425 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 fine ammonitic suture patterning. All collector grade specimens. Enlarge the illustrations above to view the attributes for each ammonoid. When ordering an ammonite, use the identifying reference number of each image to nominate your desired purchase option. If you need help contact us via our contact page see the bottom of this page [Footer Banner] below.


The shell ornamentation is dominated by 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 a 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 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