Definition of Graptolites. Meaning of Graptolites. Synonyms of Graptolites

Here you will find one or more explanations in English for the word Graptolites. Also in the bottom left of the page several parts of wikipedia pages related to the word Graptolites and, of course, Graptolites synonyms and on the right images related to the word Graptolites.

Definition of Graptolites

Graptolite
Graptolite Grap"to*lite, n. [NL, Graptolithus, from Gr. ? is engraved, written (gra`fein to write) + ? stone.] (Paleon.) One of numerous species of slender and delicate fossils, of the genus Graptolites and allied genera, found in the Silurian rocks. They belong to an extinct group (Graptolithina) supposed to be hydroids.

Meaning of Graptolites from wikipedia

- own weight via an attachment disc. Graptolites with relatively few branches were derived from the dendroid graptolites at the beginning of the Ordovician...
- Dictyonema is a genus of dendroid graptolites in the order Dendroidea. Fossils of Dictyonema are found from the Upper Cambrian to the Devonian (age range:...
- This list of graptolites is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be members...
- Graptolites, which evolved in the preceding Cambrian period, thrived in the oceans. This includes the distinctive Nemagraptus gracilis graptolite fauna...
- The Mazarn Shale is an Early Ordovician geologic formation in the Ouachita Mountains of Arkansas and Oklahoma. This interval was first described in 1892...
- The Bigfork Chert is a Middle to Late Ordovician geologic formation in the Ouachita Mountains of Arkansas and Oklahoma. First described in 1892, this unit...
- clade as the extinct graptolites, and phylogenetic analysis suggests that the pterobranchs are living members of the graptolite clade. Pterobranchs are...
- The Blakely Sandstone is a Middle Ordovician geologic formation in the Ouachita Mountains of Arkansas and Oklahoma. First described in 1892, this unit...
- Middle Cambrian, it is also considered to be the only living genus of graptolites. Rhabdopleura is the best studied pterobranch in developmental biology...
- Pterobranchia, which are small, worm-shaped animals, and the only surviving graptolites. Members belong to the hemichordates. Species in this order are sessile...