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Geologist Link to biology via paleontology

Geologist Link to biology via paleontology 1969-1971: Spent a year collecting fossils 1-2 days every week in eastern California 1971 donated fossils Trilobites to UCLA Others to Berkeley UCMP. Name a new species Publish in peer-reviewed journal Describe characteristics, and type specimen

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Geologist Link to biology via paleontology

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  1. Geologist Link to biology via paleontology 1969-1971: Spent a year collecting fossils 1-2 days every week in eastern California 1971 donated fossils • Trilobites to UCLA • Others to Berkeley UCMP

  2. Name a new species • Publish in peer-reviewed journal • Describe characteristics, and type specimen • For fossil, requires good preservation • Naming • For location found -- Crassostrea virginica (Gmelin, 1791) • For physical characteristic -- Crassostrea gigas from the Latin gigas, "giant" • For a person (but not yourself), latinized possessive

  3. Focus of my work in 1969-1971 • Collect trilobites • Growth study (they molt like a crab, shedding exoskeleton) • But collected everything • Visited libraries, looking up circa 1900 Smithsonian pubs

  4. Arthropods

  5. Echinoderms

  6. Eocrinoids are among the earliest groups of echinoderms to appear, ranging from the Early Cambrian to the Silurian. This one, Gogia, is from the Middle Cambrian House Range of Utah. Despite the name ("dawn crinoids"), they are not directly ancestral to the true crinoids. http://www.ucmp.berkeley.edu/echinodermata/eocrinoidea.html • Found new one, and I knew none had been found there previously, and maybe none quite so old • Went back next week and found counterpart • Went back multiple times looking for more • All pretty poorly preserved

  7. http://echinoblog.blogspot.com/2008/06/the-helicoplacoidea-bizarr-o-morphology.htmlhttp://echinoblog.blogspot.com/2008/06/the-helicoplacoidea-bizarr-o-morphology.html

  8. 22 years after fossil donations to UCMP

  9. $499 (Spring 2002, on web)

  10. In zoological nomenclature, synonyms are different scientific names that pertain to the same taxon, for example two names for the same species. The rule of zoological nomenclature is that the first name to be published is the senior synonym; any others are junior synonyms and should not be used. • Synonyms are "objective" if they unambiguously refer to the same taxon; this is the case if they refer to the same description or the same type specimen. Otherwise the synonyms are "subjective", meaning that there is room for debate: one researcher might consider the two names to refer to the same taxon, another might disagree.

  11. Mesolenellus guthi -- nomen nudem Bohach, Lisa. 1997. Systematics and biostratigraphy of Lower Cambrian trilobites of western Laurentia. Unpublished Ph.D. thesis, University of Victoria, 491 p., 41 pls.

  12. Mesolenellus guthi -- nomen nudem Bohach, Lisa. 1997. Systematics and biostratigraphy of Lower Cambrian trilobites of western Laurentia. Unpublished Ph.D. thesis, University of Victoria, 491 p., 41 pls. • Nomen Nudem- An unavailable name which therefore may be available for use at a later date. • Nomen nudem / NN Latin for "naked name" a name that is not regarded as valid because of inadequate or lost specimens on which the description is based • nomen nudem, nom. nud. or n.n. Indicates that the species in question not yet been validly described.

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