page_title: List of the Paleozoic life of Alabama
section_title: D
hierarchical_section_title: List of the Paleozoic life of Alabama / D
caption_attribution_description: English: Early Carboniferous crinoid fossil, Decadocrinus depressus, photographed 30 March 2012 at Smithsonian Museum of Natural History, Washington, DC.
context_page_description: This list of the Paleozoic life of Alabama contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Alabama and are between 541 and 252.17 million years of age.
context_section_description: †Dalejina
  †Dasyporella
   †Decadocrinus
  †Deiracephalus
  †Deiracephalus unicornis
  †Derbyia
  †Diaphragmus
  †Dichocrinus
  †Dicoelosia
  †Dictyonites
  †Dictyonites perforata
  †Dictyospongia – tentative report
  †Dinotocrinus
  †Diorthelasma
  †Diorthelasma parviim
  †Diplichnites
  †Diplichnites gouldi
  †Diploblastus
  †Diplothmema
  †Diplotrypa
  †Discocystis
  †Dolorthoceras
  †Donalina – or unidentified comparable form
  †Dystactospongia
caption: Fossilized calyx of the Carboniferous crinoid ("sea lily") Decadocrinus
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