Ancient Ancestor Fish Osteolepis panderi
€ 50,00
Osteolepis panderi belongs to the group of fishes that would eventually grow limbs and colonise the land, thus making it our ancestor aswell.
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Description
Osteolepis panderi
The fish known as Osteolepis panderi originated in the Middle Devonian period in what is now Scotland. This species lived around 385 million years ago. During this time, Scotland was part of the Orcadian Basin, a large system of lakes that spanned hundreds of miles. It was a time when plants began to rapidly spread across land, and fish dominated both the sea and the lakes. This era is commonly referred to as the “Age of Fishes”.
Within the lakes of the Orcadian Basin, Osteolepis panderi coexisted with various other fish species. These included Mesacanthus, Diplacanthus, Gyroptychius, and Thursius, which were all acanthodians. Additionally, the lake was populated by the lungfish Dipterus, the porolepid Glyptolepis, the enigmatic Paleospondylus gunni, and the placoderms Dickosteus, Coccosteus, Pterichtyodes, Millerosteus, Rhamphodopsis, and Homostius.
Osteolepid
The Osteolepid family, to which Osteolepis panderi belongs, is believed to have played a significant role in the evolution of amphibians. Osteolepids possess certain characteristics that can also be found in the oldest known amphibians. One notable feature is that the bones in their pectoral and pelvic fins served as precursors to terrestrial limbs. With further evolutionary developments, these fins eventually transformed into legs, allowing for movement on land. This marked the transition from fish to amphibians (or tetrapods), which eventually led to the emergence of reptiles, mammals, and ultimately humans. Therefore, fishes like Osteolepis can be considered our ancestors.
Another key piece of evidence suggesting that osteolepids are ancestral to tetrapods is the presence of an air bladder, which functioned as buoyancy. Osteolepids are considered a sister-group to the Dipnoi, which includes lungfishes.
In terms of taxonomy, Osteolepis panderi belongs to the Osteolepidae family, which is a subclass of the Crossopterygii, a group of lobe-finned fishes. Other Osteolepid species identified in the Middle Devonian deposits of Scotland include Osteolepis macrolepidotus, Thursius macrolepidotus, Thursius pholidotus, Gyroptychius agassizi, and Gyroptychius milleri.
Additional information
| Weight | 0,5 kg |
|---|---|
| Dimensions | 14 × 8 × 1,5 cm |
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