• Graptolithina - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Graptolite Graptolithina is a class of hemichordate animal, the members of which are known as graptolites. Graptolites are fossil colonial animals known chiefly from the Upper ...
  • graptolite | fossil animal | Britannica.com

    www.britannica.com/animal/graptolite Graptolite, any member of an extinct group of small, aquatic colonial animals that first became apparent during the Cambrian Period (542 million to 488 million years ...
  • Graptolites - University at Buffalo

    www.glyfac.buffalo.edu/Faculty/jorgm/WebJorg07/malgraps.htm Graptolite Origins. The origin and evolution of coloniality in the hemichordates is a poorly understood process as fossil data are basically non-existent and the ...
    • Graptolites | Sam Noble Museum

      samnoblemuseum.ou.edu/common-fossils-of-oklahoma/.../graptolites Graptolites are tiny, extinct animals that lived together in groups or colonies and shared the same skeleton, which was like an apartment building.
    • List of graptolites - Wikipedia, the free encyclopedia

      en.wikipedia.org/wiki/List_of_graptolites This list of graptolites is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be members of ...
    • Graptolite Fossils: Museum Victoria

      museumvictoria.com.au/discoverycentre/infosheets/marine-fossils/graptolites What are graptolites? Graptolites (formally known by their scientific name Graptolithina) are extinct marine creatures that formed twig-like or net-like colonies ...
    • Graptolites - premdesign.com

      www.premdesign.com/grapto.html Graptolites. Following are graptolites collected from the Athens Shale formation (Ordovician age) near Montevalo, Alabama. The Athens shale tends to be a nice ...
    • Graptolites - Falls Of The Ohio State Park

      www.fallsoftheohio.org/Graptolites.html Fossil Type: Graptolite. Name: Monograptus thomasi Jaeger. Formation: Wilson Creek Shale. Age: Pragian, Early Devonian. Location: 19 Mile Quarry, Victoria, Australia
    • Graptolite | Define Graptolite at Dictionary.com

      dictionary.reference.com/browse/graptolite Graptolite definition, ... Graptolites form colonies consisting of interlocked cuplike chambers arranged in one or more branches and covered by an exoskeleton.
    • Graptolite | Definition of Graptolite by Merriam-Webster

      www.merriam-webster.com/dictionary/graptolite Define graptolite: any of an extinct class (Graptolithina) of hemichordate colonial marine animals of the Paleozoic era with zooids contained in conical ...