Foraminifera of the Type Kiowa Shale, Lower Cretaceous, of Kansas

15 p., 2 pl.http://paleo.ku.edu/contributions.htm

Dinoflagellate genetics and DNA characterization : (dinoflagellates, evolution, nucleus, DNA, genetics, mesocaryota)

Nuclear features of dinoflagellates that were used origin ally to support the Mesocaryota concept are reviewed. Although dinoflagellates possess some procaryotic nuclear features, the remainder of the cell is obviously eucaryotic. The fibrillary diameter of the chromatin, low level of chromosomal basic proteins, membrane attachment of the chromosomes and swirl pattern seen in sectioned chromosomes all support a procaryotic affinity. On the other hand, the repeated and highly complex DNA, S-phase of DNA synthesis, and the presence of basic proteins and extra nuclear spindle support the contention that dinoflagellates are eucaryotic. The possession of both procaryotic and eukaryotic nuclear features indicate that this group evolved relatively early in biological time. A review is made of recent attempts to analyze the genetics of this algal group. Although incomplete, these studies have suggested that dinoflagellates have an unusual meiotic process.ALFRED R. LOEBLICH, III, The Biological Laboratories, Harvard University, Cambridge, MA

Type fixation and validation of certain calcareous narmoplankton genera

Volume: 76Start Page: 191End Page: 19

Comments and counter proposal on the type-species of Amrnodiscus Reuss, 1862 (Foraminifera)

Volume: 20Start Page: 88End Page: 9

Saedeleeria, new genus of the family Allogromiidae (Foraminifera)

Volume: 73Start Page: 195End Page: 19

Thysanoprobolus, a new acritarch genus from the Early Devonian (Late Gedinnian) Haragan Formation of Oklahoma, U.S

Volume: 83Start Page: 261End Page: 26

Letter to H.B. Stenzel from Alfred R. Loeblich on 1941-02-13

Jackson School of Geoscience