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Archipelepis

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(Redirected fromArchipelepididae)
Extinct genus of jawless fishes

Archipelepis
Temporal range: LateTelychian-Sheinwoodian
A. turbinata
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Family:
Archipelepididae
Genus:
Archipelepis

Märss in Soehnet al., 2001
Type species
Archipelepis turbinata
Märss in Soehnet al., 2001
Species
  • Archipelepis bifurcata[1]
  • Archipelepis turbinata

Archipelepis is a genus of extinctthelodontagnathans, and are the most primitive recognizedthelodonts of which whole bodyfossils are known.[2] Fossils of bodies and scales are currently known from LateTelychian toWenlock-aged marine strata of northernCanada.[3]

Description

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Both species have similar body morphology, in that both resembledtadpoles with forked tails. Scale morphology differs in thatA. bifurcata has forked scales with two prong-like spires,[1] and thatA. turbinata has bulbous, pointed scales that resemble upside-downspinning tops.[3]

The scales ofArchipelepis are robust and abrasion-resistant, similar to modern sharks which live among rough substrates such as rocky caves or reefs.[4][5]

References

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  1. ^abMärss, Tiiu, VH Wilson, Mark, & Thorsteinsson, Raymond. "New thelodont (Agnatha) and possible chondrichthyan (Gnathostomata) taxa established in the Silurian and Lower Devonian of theCanadian Arctic Archipelago."Proceedings of the Estonian Academy of Sciences, Geology. Vol. 51. No. 2. Estonian Academy Publishers, 2002.
  2. ^Wilson, Mark VH, and Tiiu Märss. "Thelodont phylogeny revisited, with inclusion of key scale-based taxa." Estonian Journal of Earth Sciences 58.4 (2009): 297œ310.[1]
  3. ^abSoehn, K. L., Märss, T., Caldwell, M. W. & Wilson, M. V. H., 2001: New and biostratigraphically useful thelodonts from theSilurian of theMackenzie Mountains, Northwest Territories, Canada. Journal of Vertebrate Paleontology, 21: 651-659[2]
  4. ^Ferrón, Humberto G.; Botella, Héctor (2017)."Squamation and ecology of thelodonts".PLOS ONE.12 (2) e0172781.Bibcode:2017PLoSO..1272781F.doi:10.1371/journal.pone.0172781.PMC 5328365.PMID 28241029.
  5. ^Ferrón, Humberto G; Martínez-Pérez, Carlos; Turner, Susan; Manzanares, Esther; Botella, Héctor (2018). "Patterns of ecological diversification in thelodonts".Palaeontology.61 (2):303–315.doi:10.1111/pala.12347.hdl:10550/85568.

External links

[edit]
Archipelepidiformes
Nikoliviidae
Lanarkiidae
Apalolepididae
Furcacaudidae
Talivaliidae
Turiniidae
Coelolepidae
Loganelliidae
Phlebolepididae
Shieliidae
Furcacauda heintzae
Archipelepis


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