The Tremadocian is the lowest stage of Ordovician. Together with the later Floian Stage it forms the Lower Ordovician Epoch. The Tremadocian lasted from...

years ago, until the Dapingian age of the Middle Ordovician. It includes Tremadocian and Floian ages. International Commission on Stratigraphy (ICS) appointed...

Furongian series. It follows the Jiangshanian and precedes the Ordovician Tremadocian Stage. The proposed lower boundary is the first appearance of the trilobite...

The Ordovician Period in Britain was traditionally broken into Early (Tremadocian and Arenig), Middle (Llanvirn (subdivided into Abereiddian and Llandeilian)...

as dictyonema argillite, dictyonema oil shale, dictyonema shale, or Tremadocian black shale) is a marinite-type black shale of sapropelic origin. It...

conodonts belonging to the genus Iapetognathus. It existed during the Tremadocian Age (485.4 million years ago) of the Ordovician. It is an important index...

(2018). "High resolution trilobite biostratigraphy for the early late Tremadocian (Tr2) interval (Early Ordovician) Santa Rosita Formation, Argentine Cordillera...

Miaolingian series of the Cambrian and precedes the Lower Ordovician Tremadocian Stage. It is subdivided into three stages: the Paibian, Jiangshanian...

Species belonging to the Phacopina lived from the Lower Ordovician (Tremadocian) through the end of the Upper Devonian (Famennian). The one unique feature...

Angeles. Santa Rosita Formation, a geological formation (upper Furongian–Tremadocian) in the Tilcara Range, Cordillera Oriental of Jujuy, Argentina Santa...

rocks. The Global Boundary Stratotype Section and Point (GSSP) of the Tremadocian stage and the all Ordovician system is defined in the Green Point section...

Dapingian 470 ± 1.4 * Lower/Early Floian (formerly Arenig) 477.7 ± 1.4 * Tremadocian 485.4 ± 1.9 * Cambrian Furongian Stage 10 Major diversification of (fossils...

(Ordovician) Arkonia (Ordovician) Asteridium (Cambrian) Athabascaella (Tremadocian, Early Ordovician) Axisphaeridium (Ordovician) Bacisphaeridium (Ordovician)...

Coryphidium is an extinct genus of acritarchs. C. elegans is from the Tremadocian, the lower age of the Ordovocian of Morocco. Acritarchs from Klabava...

Calyxdendrum amicabilis Sp. nov Gutiérrez-Marco & Maletz Ordovician (Tremadocian) Fezouata Formation  Morocco A graptolite belonging to the family Dendrograptidae...

trilobites of the family Raphiophoridae that lived during the Early Tremadocian of Alberta, Canada. It is known only from a cranidium with a large, keel-shaped...

formation in Bavaria, Germany. It preserves fossils dating back to the Tremadocian stage of the Ordovician period. Trilobites Agerina alkleini Echinosphaerites...

sequence of metasedimentary rocks of Cambro-Ordovician (Furongian to Tremadocian) age found in northern and western Anglesey and the adjacent Holy Island...

Their first appearance in the fossil record was in the Early Ordovician (Tremadocian) and they had become extinct by the Late Devonian (Famennian). They are...

benmoulai Van Roy, Daley, & Briggs 2015 Hurdiidae (Aegirocassisinae) Tremadocian  Morocco Hurdia victoria Walcott 1912 Hurdiidae Wuliuan–Drumian  Canada...

trilobites of the family Raphiophoridae that lived during the Early Tremadocian of Vermont, United States. The generic epithet is a compound word of...

Floian is the second stage of the Ordovician Period. It succeeds the Tremadocian with which it forms the Lower Ordovician series. It precedes the Dapingian...

of ridges (Taylor 1984). Marcusodictyon occurs on late Cambrian and Tremadocian lingulate brachiopods of Baltica (Vinn 2015). Taylor, P.D. (1984). Marcusodictyon...

shales with limestone inclusions, dating from the Lower Ordovician (Tremadocian). It is one of the six geological formations from the Saint-Chinian Cambro-Ordovician...

Aegirocassis Temporal range: Late Tremadocian, 480 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ Fossil holotype Reconstruction of Aegirocassis benmoulai Scientific...

The Tucumilla Formation is a Tremadocian geologic formation of southern Bolivia. The sandstones, shales and siltstones crop out in the José María Avilés...

"Feeding traces related to shells from the Prague Basin, Czech Republic (Tremadocian to early Darriwilian, Ordovician)". Palaeogeography, Palaeoclimatology...

belonging to the Family Olenidae, Suborder olenina. It lived during the Tremadocian Stage, lowermost of the two standard worldwide divisions forming the...

Tremadocian New Richmond Sandstone Oneota Dolomite Shakopee Dolomite...

Evans, D. H. (2011). "Review and paleoecological analysis of the late Tremadocian – early Floian (Early Ordovician) cephalopod fauna of the Montagne Noire...