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...

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

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

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

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

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...

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

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

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

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

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...

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...

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)...

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...

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

Phacopoidea Temporal range: Tremadocian–Famennian PreꞒ Ꞓ O S D C P T J K Pg N Phacops rana Scientific classification Domain: Eukaryota Kingdom: Animalia...

that spans the Tremadocian and Floian epochs. Two stratigraphic intervals of the formation are fossiliferous: the lower is Late Tremadocian and sits 260...

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

other feeding strategies, as wells as evidence of better preservation of Tremadocian animals than Floian ones. A study on silicified fossils from the Ordovician...

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

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...

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

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

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

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

northern Wales (of which "Tremadoc" is an alternate, anglicised name). The Tremadocian, the first internationally recognized stage of the Ordovician Period...

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