Ptychagnostus atavus
id:
ptychagnostus-atavus-302-6784633
title:
Ptychagnostus atavus
text:
Ptychagnostus atavus is a species of agnostid trilobite. It was originally described by Swedish paleontologist Sven Axel Tullberg as Agnostus atavus in 1880. It is used in biostratigraphy as an index fossil. Its first appearance at the GSSP section in the Wheeler Shale of Utah is defined as the beginning of the Drumian Age of the Miaolingian. Laurie (2008) grouped punctuosus and affinis within Ptychagnostus, but preferred to place the closely related atavus within Acidusus.
brand slug:
wiki
category slug:
encyclopedia
description:
Extinct species of trilobite
original url:
https://en.wikipedia.org/wiki/Ptychagnostus_atavus
date created:
date modified:
2023-11-03T22:25:21Z
main entity:
{"identifier":"Q7180305","url":"https://www.wikidata.org/entity/Q7180305"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/4/4c/Ptychagnostus_Atavus.jpg","width":607,"height":618}
fields total:
13
integrity:
15