| 词条 | Phyllograptus |
| 释义 |
| name = Phyllograptus | fossil_range = Early Ordovician | image = Phyllograptidae - Phyllograptus species.JPG | image_width = 250px | image_caption = Phyllograptus species | regnum = Animalia | phylum = Hemichordata | classis = Graptolithina | ordo = Graptoloidea | familia = Phyllograptidae | genus = Phyllograptus | genus_authority = }} Phyllograptus is a graptolite genus of the order Graptoloidea, in the family Phyllograptidae. Fossils of this genus have been found in the Early Ordovician (475-473 million years ago), in the sediments of Australia, Bolivia, Canada, Chile, China, New Zealand, Norway, Spain, Sweden, the United Kingdom and United States.[1] The normal length of a colony of these leaf-shaped animals could reach a length of {{convert|3.5|cm}}. They were passively mobile planktonic suspension feeders.[1][2] Phyllograptus species are excellent index fossils or guide fossils for identifying Ordovician rocks.[3]Species
References1. ^1 Paleobiology Database 2. ^Fossil Museum 3. ^Encyclopædia Britannica 4. ^Fossil ID
5 : Graptolite genera|Graptoloidea|Index fossils|Early Ordovician animals|Paleozoic life of the Northwest Territories |
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