Unresolved name

Unresolved name: Sponges » Demospongea » Lithistida «

Astylospongiidae

last appearance

Paleobiology Database
ludlow epoch
URI: http://resource.geosciml.org/classifier/ics/ischart/Ludlow

Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale

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Paleobiology Database

423 million years ago

(min)