Palynomorph is the geological term used to describe a particle of a size between 5 - 500 micrometres, found in rock deposits (sedimentary rocks) and composed of organic material, such as chitin, pseudochitin and sporopollenin. The word is derived from Greek, meaning 'strewn or sprinkled forms'. Palynology is the study of palynomorph fossils and can be considered a subdiscipline of micropaleontology or paleobotany. More simply, palynology is the study of organic microfossils. This article does not cite its references or sources. ... Two types of sedimentary rock: limey shale overlaid by limestone. ... Structure of chitin molecule Chitin (IPA: ) is one of the main components in the cell walls of fungi, the exoskeletons of insects and other arthropods, and in some other animals. ... Categories: Stub ... A fossil Ammonite Fossils are the mineralized remains of animals or plants or other traces such as footprints. ... Micropaleontology, the study of microfossils, is a branch of paleontology. ... Paleobotany (from the Greek words paleon = old and botanikos = of herbs) is the branch of paleontology dealing with the recovery and identification of plant remains from geological contexts, and their use in the reconstruction of past environments and the history of life. ... For other uses of the term, see Fossil (disambiguation) Fossils are the mineralized remains of animals or plants or other artifacts such as footprints. ...

Palynomorphs form a geological record of importance in determining the type of life that existed at the time the formation was laid down, and give important clues to prevailing climatic conditions of the time. Their paleontological utility derives from an abundance numbering in millions of cells per gram in organic marine deposits, even when such deposits are generally not fossiliferous. Palynomorphs, however, generally have been destroyed in metamorphic or recrystallized rocks. The term Metamorphic can be associated with a number of meanings:- Metamorphic rock The term for rocks that have been transformed by extreme heat and pressure. ...

Typically, palynomorphs are dinoflagellates, acritarchs, spores, pollen, fungi, scolecodonts (scleroprotein teeth, jaws and associated features of polychaet annelid) worms, arthropod organs (insect mouth parts), chitinozoans and microforams. Classes Dinophyceae Noctiluciphyceae Syndiniophyceae The dinoflagellates are a large group of flagellate protists. ... Acritarchs are small organic structures found as fossils. ... Spores produced in a sporic life cycle. ... SEM image of pollen grains from a variety of common plants: sunflower (Helianthus annuus), morning glory (Ipomoea purpurea), hollyhock (Sidalcea malviflora), lily (Lilium auratum), primrose (Oenothera fruticosa), and castor bean (Ricinus communis). ... Divisions Chytridiomycota Zygomycota Ascomycota Basidiomycota The Fungi (singular: fungus) are a large group of organisms ranked as a kingdom within the Domain Eukaryota. ... Scolecodonts are the jaws of polychaete annelids (worms). ... Orders Amphinomida Capitellida Chaetopterida Cirratulida Cossurida Ctenodrillidae Eunicida Flabelligerida Magelonida Myzostomida Nerillida Opheliida Orbiniida Orweniida Phyllodocida Pisionidae Polygordiida Protodrilida Psammodrilidae Sabellida Spionida Spintheridae Sternaspida Terebellida The Polychaeta or Polychaetes are a class of annelid worms, generally marine, with a pair of fleshy protrusions on each body segment called parapodia that... Classes and subclasses Class Polychaeta      (paraphyletic?) Class Clitellata    Oligochaeta -      (Earthworms, etc. ... Subphyla and Classes Subphylum Trilobitomorpha Trilobita - trilobites (extinct) Subphylum Chelicerata Arachnida - spiders,scorpions, etc. ...