Apsidoceratidae
id:
apsidoceratidae-240-17758304
title:
Apsidoceratidae
text:
The Apsidoceratidae is a family of Middle and Upper Ordovician Barrandeocerina,, characterized by curved or coiled, smooth, transversely marked, or laterally costate shells, with a conspicuous hyponomic sinus. Early whorl sections tend to be subtriangular; become broader and dorsally impressed in closely coiled forms. Sutures are with lateral lobes in primitive forms but are without lateral lobes, but with ventral lobes in more advanced species with broader sections. Siphuncles are between the c
brand slug:
wiki
category slug:
encyclopedia
description:
Extinct family of molluscs
original url:
https://en.wikipedia.org/wiki/Apsidoceratidae
date created:
date modified:
2024-01-03T12:50:18Z
main entity:
{"identifier":"Q4782183","url":"https://www.wikidata.org/entity/Q4782183"}
image:
fields total:
13
integrity:
14