Definition of Tetragraptus. Meaning of Tetragraptus. Synonyms of Tetragraptus

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

Definition of Tetragraptus

No result for Tetragraptus. Showing similar results...

Meaning of Tetragraptus from wikipedia

- Tetragraptus is an extinct genus of graptolites from the Ordovician period. T. akzharensis T. approximatus T. fruticosus T. insuetus Fossils of Tetragraptus...
- was decided to divide each of the three series into two global stages. Tetragraptus approximatus zone was chosen as the base of the upper stage of the Lower...
- Tetragraptus approximatus is a species of dichograptid graptolite belonging to the genus Tetragraptus. It existed during the Floian Age (477.7 million...
- proliferum Prolecanites gurleyi Palmatolepus unicornis Hexamocaras hertzeri Tetragraptus fructicosus Billingsella corrugata Paleontology s****s to map out how...
- larger part of the north of the island is formed from mudstones of the Tetragraptus Mudstone Formation (also known as the 'Penmaen Dewi Shale Formation'...
- Devonian 416 to 359 million years ago Palmatolepis unicornis Devonian Tetragraptus fructicosus Ordovician Paradoxides Cambrian 509 to 500 million years...
- boundary is defined as the first appearance of the graptolite species Tetragraptus approximatus. The base of this stage was ratified by the International...
- †Pseudophyllograptus Cooper & Fortey, 1982 †Pseudotrigonograptus Mu & Lee, 1958 †Tetragraptus Salter, 1863 †Tristichograptus Jackson & Bulman, 1970 Maletz, Jörg (2017)...
- beginning of the Floian which is defined as the first appearance of Tetragraptus approximatus at the GSSP in Diabasbrottet quarry, Västergötland, Sweden...
- Dinorthis obispoensis Orthambonites calligramma Peelerophon oehlerti Tetragraptus quadribrachiatus Thysanopyge argentina Yutagraptus vdeflexus Phyllograptus...