Biology:Pipiscius
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Short description: Extinct genus of lampreys
| Pipiscius Temporal range: Moscovian (Middle) Pennsylvanian Epoch,
Carboniferous Period | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Infraphylum: | Agnatha |
| Class: | Hyperoartia |
| Order: | Petromyzontiformes |
| Genus: | †Pipiscius Bardack & Richardson, 1977 |
| Species: | †P. zangerli
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| Binomial name | |
| †Pipiscius zangerli Bardack & Richardson, 1977
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Pipiscius is an extinct genus of lamprey that lived about 300 million years ago, during the Middle Pennsylvanian Epoch of the Carboniferous Period. The genus contains a single species, P. zangerli, known from the Mazon Creek fossil beds located in present-day Illinois.[1]
It has a distinctive crown-like mouth comprising a ring of radially arranged teeth.[2] However, some specimens assigned to the coeval lamprey Mayomyzon, also found in the Mazon Creek beds, also have similar mouthparts. Since Pipiscius does not have many any other defining features, it has been suggested that the two genera are synonymous, with the name Mayomyzon having priority. [3]
See also
References
- ↑ Bardack, David.; Richardson, Eugene Stanley (1977). "New agnathous fishes from the Pennsylvanian of Illinois". Fieldiana (Field Museum of Natural History) 3 (26): 489–510. doi:10.5962/bhl.title.5167.
- ↑ Shu, D.; Morris, S. Conway; Zhang, X-L.; Chen, L.; Li, Y.; Han, J. (1999). "A pipiscid-like fossil from the Lower Cambrian of south China". Nature 400 (6746): 746. doi:10.1038/23445. Bibcode: 1999Natur.400..746S.
- ↑ Gabbott, Sarah E.; Sansom, Robert S.; Purnell, Mark A. (2021-08-24). Lomax, Barry. ed. "Systematic analysis of exceptionally preserved fossils: correlated patterns of decay and preservation" (in en). Palaeontology 64 (6): 789–803. doi:10.1111/pala.12571. ISSN 0031-0239.
Wikidata ☰ Q25095546 entry
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