Polyelasmoceratidae
id:
polyelasmoceratidae-274-14276762
title:
Polyelasmoceratidae
text:
Polyelasmoceratidae is a family of oncocerid nautiloids characterized by rapidly expanding endogastrically curved shells, curved such that the ventral side is longitudinally concave. In cross section shells are typically tear-drop in shape to subtriangular. The siphuncle is typically nummuloidal, like a string of beads, with outwardly flared septal necks, and located between the center and the venter. Most contain radially lamellar actinosiphonate deposits. The Middle Silurian Danaoceras is prob
brand slug:
wiki
category slug:
encyclopedia
description:
Extinct family of nautiloids
original url:
https://en.wikipedia.org/wiki/Polyelasmoceratidae
date created:
date modified:
2023-07-18T19:31:49Z
main entity:
{"identifier":"Q19760186","url":"https://www.wikidata.org/entity/Q19760186"}
image:
fields total:
13
integrity:
14