Peronopora
Peronopora sp. in longitudinal (left) and tangential (right) sections. Field of view is 1.0 mm. SMH collection.
Peronopora sp. in longitudinal (left) and tangential (right) sections. Field of view is 1.0 mm. SMH collection.
Peronopora is typically bifoliate, but may also be encrusting, ramose, or massive. Monticules may be defined by increased style diameter, a cluster of mesozooids, or larger zooecia. The median layer may be absent in some specimens, causing it to appear frondose. Cystiphragms form continuous overlapping series, beginning at the median layer and extending through most of exozone. Cystiphragms are typically on the distal side of zooecia, but may be adjacent to a monticule. Diaphragms are present but thin. Styles are generally abundant and large, and they may inflect zooecial walls. Mesozooids are usually large and abundant, but become progressively crowded out distally.
Species
Peronopora browni Anstey and Pachut, 2004
Occurrence: Edenian - Maysvillian
Reference: Anstey and Pachut, 2004
Peronopora compressa (Ulrich, 1879)
Occurrence: Bellevue, Corryville, Mount Auburn
Reference: Dalvé, 1948; Hickey, 1988; Pachut and Anstey, 2002; Anstey and Pachut, 2004
Originally named Chaetetes compressa. Also called Monticulipora compressa.
Peronopora decipiens (Rominger, 1866)
Occurrence: Bellevue, Corryville, Mount Auburn, Arnheim, Liberty, Elkhorn
Reference: Utgaard and Perry, 1964; Singh, 1979; Karklins, 1984 (mention); Hickey, 1988; Cuffey in Davis and Cuffey, 1998 (mention); Pachut and Anstey, 2002; Anstey and Pachut, 2004
Originally named Chaetetes decipiens.
Peronopora dubia (Cumings and Galloway, 1913)
Occurrence: Bellevue, Arnheim
Reference: Singh, 1979; Hickey, 1988; Cuffey in Davis and Cuffey, 1998 (mention); Pachut and Anstey, 2002
Also called Homotrypella dubia, Peronoporella dubia; Includes Peronopora pachymura Utgaard and Perry, 1964; Anstey and Pachut, 2004
Peronopora horowitzi Pachut and Anstey, 2002
Occurrence: Kope, Fairmount, Bellevue, Corryville, Mount Auburn, Arnheim, Waynesville, Liberty, Whitewater
Reference: Pachut and Anstey, 2002; Anstey and Pachut, 2004
Peronopora milleri Nickles, 1905
Occurrence: Clays Ferry
Reference: Karklins, 1984; Hickey, 1988; Pachut and Anstey, 2002; Anstey and Pachut, 2004
Peronopora pachymura Utgaard and Perry, 1964
Occurrence: Edenian - Richmondian
Reference: Utgaard and Perry, 1964; Anstey and Pachut, 2004
Peronopora pauca Utgaard and Perry, 1964
Occurrence: Bellevue, Corryville, Mount Auburn, Arnheim, Liberty, Whitewater, Elkhorn
Reference: Utgaard and Perry, 1964; Pachut and Anstey, 2002; Anstey and Pachut, 2004
Peronopora sparsa Brown and Daly, 1985
Occurrence: Dillsboro
Reference: Brown and Daly, 1985; Hickey, 1988; Pachut and Anstey, 2002; Anstey and Pachut, 2004
Peronopora uniformis Ulrich, 1882
Occurrence: Edenian - Richmondian
Reference: Anstey and Pachut, 2004
Peronopora vera Ulrich, 1888
Occurrence: Clays Ferry, Fulton, Economy, Southgate, McMicken, Mount Hope, Fairmount
Reference: Anstey and Perry, 1972; Karklins, 1984; Brown and Daly, 1985; Hickey, 1988; Anstey and Wilson, 1996; Pachut and Anstey, 2002; Anstey and Pachut, 2004
