title: Fossils of uncertain affinity from the upper devonian of iowa.
abstract: Thousands of specimens of the enigmatic fossil Gluteus minimus (new genus, newt species) occur in a 5-centimeter-thick interval within the Maple Mill Shale and in equivalent deposits of the Devonian of eastern Iowa. They are roughly lenticular. bilobed fossils up to 11 millimeters in diamiter and 8 milllimeters thic. These objects consistently asymmetrical in the same direction. defy placement in any known higher taxon when their morphology. histology, and apatitic composition considered.
authors.forename: R A
authors.initials: RA
authors.lastname: Davis
authors.forename: H A
authors.initials: HA
authors.lastname: Semken