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Product details

Product description and measurements

Sphenacodon ferox : A primitive predator on the path of mammals

During the Early Permian, some 300 million years ago, terrestrial ecosystems were dominated by a diverse and constantly evolving fauna. Among the most prominent predators of that time was Sphenacodon ferox , a carnivorous synapsid that inhabited the regions that now constitute the southwestern United States. This animal, although extinct for hundreds of millions of years, represents a key piece in understanding the evolutionary origins of the lineage that would eventually lead to mammals.

Sphenacodon ferox belonged to the pelycosaur group, primitive synapsids that dominated terrestrial ecosystems before the rise of reptiles proper. Estimated to be between 2 and 2.5 meters long, this robustly built predator had an elongated, massive skull, equipped with a powerful dentition composed of sharp, recurved teeth. These characteristics indicate a specialized carnivorous diet, probably based on hunting smaller reptiles, amphibians, and other vertebrates from the Permian environment.

One of the main differences between Sphenacodon and its better-known relative, Dimetrodon , is the absence of a prominent dorsal sail. Whereas Dimetrodon exhibited elongated neural spines forming a sail-like structure, possibly used for thermoregulation or visual display, Sphenacodon ferox featured only a low crest, with slightly elongated dorsal vertebrae. This anatomical difference has led paleontologists to consider possible variations in ecology and behavior between the two genera.

In terms of locomotion, Sphenacodon maintained a reptilian posture typical of synapsids of its time, with limbs protruding laterally from the body. However, some skeletal adaptations indicate an incipient transition to a more upright posture, a characteristic that would later become characteristic of mammals. This combination of primitive and derived features makes Sphenacodon a fascinating example of the early evolution of the synapsid body plan.

From an evolutionary perspective, Sphenacodon ferox occupies a significant place in natural history. As a member of the synapsid lineage, it exhibits the characteristic unique temporal opening behind the eye, which distinguishes this group from true reptiles and allowed for the development of more efficient jaw musculature. This structural innovation would lay the groundwork for the evolution of a more complex jaw, a fundamental step on the path to the emergence of mammals.

Approximate measurements of the Sphenacodon:

  • Scale 1:35 Complete
    • Length 64 mm 
    • Height 19 mm
    • Width 24 mm
    • Snout-tail length 72 mm
  • Scale 1:20 Complete
    • Length 113 mm 
    • Height 32 mm
    • Width 42 mm
    • Snout-tail length 125 mm
Information about aftershocks

Collector's item ; Hyper-realistic replica, highly detailed and with a high degree of scientific precision.

Made to scale, prototyped in resin and with a scenic base in most of the models offered. If you like miniatures, both for collecting and for painting, we offer you a wide variety of scale replicas; All of them related to dinosaurs, extinct prehistoric fauna and current fauna.

So if you love dinosaurs and animals as much as we do, this is your favorite store to collect and paint them :)

We are authorized distributors of all the replicas and figures we offer. We use 3D printers with 8K - 14K resolution, and high-quality resins with additives to improve hardness and flexibility, thus offering replicas of impeccable quality.

Different scales will be used to make the replicas (depending on the size of the species), although we are open to making other suggested scales upon request as long as they fit in our printing trays, for which you will have to contact us via email and request the required size.

Replicas are supplied with the option of airbrush priming in dark grey. If you require another colour, please let us know which one you prefer in the box with special instructions for the seller. Without priming, we do not guarantee that the resin will accept paint.
We also offer the option of choosing a professionally painted replica, which is agreed upon throughout its development with the painter, through a private chat available.

Complete replica (one piece): We supply complete replicas in those models that are small, and models that are medium, large or not very bulky, will have the prerogative of being presented as a complete replica or assembly kit as the case may be.
Complete replicas will be supplied separately from their base.

Replica assembly kit: We supply replicas whose models are large, very large or bulky, only with this option.
The indicated replicas (generally composed of base, head, body and tail) will come prepared for the subsequent assembly that will be required by the client, by sanding, putty, adhesive or technique chosen by the client.

All replicas are thoroughly inspected before shipping and will be carefully packaged to prevent damage during transport.

Information about the models

The poses of the models aim to represent each character in the most scientifically viable way, thus revealing the life and customs of prehistoric and modern fauna.

Each character has its own personality and develops in different life scenarios; birth, adolescence and play, hunting, feeding, fighting, courtship, death and many other scenes from their daily life, always from the creative perspective of their designers.

Handmade

All orders are individually prepared on the cutter for subsequent prototyping, obtaining a resin part that will require post-processing by manual and ultrasonic cleaning, support removal, ultraviolet curing, labeling and packaging.

We are authorized distributors

We offer both our own physical replicas and those that have been modeled by many of the best 3D designers, in order to offer you the greatest possible variety.

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