Ateleaspis

Ateleaspis

Taxobox
name = "Ateleaspis"
status = Fossil
fossil_range = Early Silurian to Early Devonian


image_caption = "Ateleaspis tessellata"
regnum = Animalia
phylum = Chordata
subphylum = Vertebrata
infraphylum = Agnatha
classis = Osteostraci
genus = "Ateleaspis"
species = "A. tessellata"
binomial = "Ateleaspis tessellata"
binomial_authority = Alexander Ritchie, 1967

"Ateleaspis" is an extinct genus of primitive ostracoderm fish that lived in the Early Silurian to Early Devonian periods. Like other ostracoderms, "Ateleaspis" had a head shield similar to that of "Cephalaspis". Species from Silurian period were found in Norway and Scotland, but now has been found also in Siberia from Early Devonian period.

Description

"Ateleaspis" possibly is the the most basal vertebrate with paired fins. "Ateleaspis" was a small fish (about 15 - 20 cm) and had a flat headshield a narrow trunk covered by brick-like scales.

External links

* [http://www.palaeos.com/Vertebrates/Units/050Thelodonti/050.600.html#Ateleaspis Ateleaspis at Palaeos]
* [http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_name=Ateleaspis&is_real_user=1 Ateleaspis species location & chronology]
*


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