Polazzodus
| Polazzodus Temporal range:
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
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| Genus: | Polazzodus Poyoto-Ariza, 2010
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| Species | |
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Polazzodus is an extinct
rudist reefs
. P. coronatus is known from numerous specimens, many of which were very well-preserved.
The new genus Polazzodus was erected based on a number of
autapomorphies that distinguished it from similar pycnodontid fish. These include a second dorsal ridge scale (from which the Latin species name, coronatus, is derived), presence of olfactory fenestra on premaxilla, posterodorsal process on cleithrum, and several others. The largest measured recovered specimen was 97 mm (3.8 in), and the smallest was 30 mm (1.2 in), which represented a subadult specimen. Polazzodus, being a low-bodied pycnodont, is most similar morphologically to Pycnodus and Tergestrinia, though its body shape is more oval than these genera.[1]
References
- S2CID 86751972.