|
Axonophora
Axonophora is an extinct suborder of graptolites. It primarily consists of the biserial graptolites, and also includes the retiolitids and monograptids. Taxonomy Taxonomy of Axonophora from Maletz (2014): *Infraorder †Diplograptina Lapworth, 1880e **Family †Diplograptidae Lapworth, 1873b ***Subfamily †Diplograptinae Lapworth, 1873b ***Subfamily †Orthograptinae Mitchell, 1987 **Family †Lasiograptidae Lapworth, 1880e **Family †Climacograptidae Frech, 1897 **Family †Dicranograptidae Lapworth, 1873b ***Subfamily †Dicranograptinae Lapworth, 1873b ***Subfamily †Nemagraptinae Lapworth, 1873 *Infraorder †Neograptina Štorch et al., 2011 **(Unranked) ***Family †Normalograptidae Štorch & Serpagli, 1993 ***Family †Neodiplograptidae Melchin et al., 2011 ****Subfamily †Neodiplograptinae Melchin et al. 2011 ****Subfamily †Petalolithinae Bulman, 1955 **Superfamily †Retiolitoidea Lapworth, 1873b ***Family †Retiolitidae Lapworth, 1873b (retiolitids) ****Subfamily ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graptolite
Graptolites are a group of colonial animals, members of the subclass Graptolithina within the class Pterobranchia. These filter-feeding Filter feeders are a sub-group of suspension feeding animals that feed by straining suspended matter and food particles from water, typically by passing the water over a specialized filtering structure. Some animals that use this method of feedin ... organisms are known chiefly from fossils found from the Middle Cambrian (Miaolingian, Wuliuan) through the Lower Carboniferous (Mississippian (geology), Mississippian). A possible early graptolite, ''Chaunograptus'', is known from the Middle Cambrian. Recent analyses have favored the idea that the living pterobranch ''Rhabdopleura'' represents an extant graptolite which diverged from the rest of the group in the Cambrian. Fossil graptolites and ''Rhabdopleura'' share a colony structure of interconnected zooids housed in organic tubes (theca) which have a basic structure of stacked half-rings (fuse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
