Rafinesquina Ponderosa
   HOME
*





Rafinesquina Ponderosa
''Rafinesquina'' is an extinct genus of large brachiopod that existed from the Darriwilian to the Ludlow epoch. The genus was named in honor of polymath Constantine Samuel Rafinesque. Description ''Rafinesquina's'' members were epifauna, epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeder, suspension feeders. ''Rafinesquina'' normally have a concavo-convex profile, with radiating striae of alternating size which are crossed with finer concentric striae. Their width is usually greater than their length, like most Strophomenida, Strophomenids. Members of this genus had shells that grew in increments, with each increment forming a layer of the shell (much like trees do with their tree rings, rings). In 1982, Gary D. Rosenberg analyzed specimens of ''Rafinesquina alternata'' previously inferred to have lived in a shallow subtidal environment and proposed it could be possible to estimate the total number of days in a lunar month (th ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Ohio
Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The state's capital and largest city is Columbus, with the Columbus metro area, Greater Cincinnati, and Greater Cleveland being the largest metropolitan areas. Ohio is bordered by Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the west, and Michigan to the northwest. Ohio is historically known as the "Buckeye State" after its Ohio buckeye trees, and Ohioans are also known as "Buckeyes". Its state flag is the only non-rectangular flag of all the U.S. states. Ohio takes its name from the Ohio River, which in turn originated from the Seneca word ''ohiːyo'', meaning "good river", "great river", or "large creek". The state arose from the lands west of the Appalachian Mountai ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  



MORE