Ctenaspis
id:
ctenaspis-258-5012260
title:
Ctenaspis
text:
Ctenaspis is an extinct genus of heterostracan cyathaspid agnathans from the early Devonian of Canada, Norway and Russia 416.0 to 412.3 million years ago. Species of Ctenaspis are typically 10 to 18 cm long with the max length being 40 cm long. The genus contains only one known species, namely Ctenaspis kaieri. C. kaieri has no adorbital opening and only two dorsal and ventral plates. The dorsal plate is fused with branchials and the plates notably thin. C. kiaeri has its branchial openings loca
brand slug:
wiki
category slug:
encyclopedia
description:
Extinct genus of jawless fishes
original url:
https://en.wikipedia.org/wiki/Ctenaspis
date created:
date modified:
2023-10-01T22:19:21Z
main entity:
{"identifier":"Q5191612","url":"https://www.wikidata.org/entity/Q5191612"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/4/45/Ctenaspis_NT_small.jpg","width":600,"height":450}
fields total:
13
integrity:
15