1. Their geologic age is Lower Devonian, early Emsian, Ulmen Substage.

2. Mineral, palaeontology, middle devonian, permian to early jurassic, and cretaceous.

3. Your paper on punctuated equilibrium in the Devonian Era was topnotch.

4. The first fossil Ctenophore from the lower devonian of West Germany

5. The Devonian period is correctly called the age of fishes.

6. Bryozoan fossils can be found in Kentucky's Ordovician, Silurian, Devonian, Mississippian, and Pennsylvanian rocks

7. Fossil Brachiopod with Glittery Pyrite Devonian Sylvania Ohio OH COA 3681 Free Shipping PioneerFossils

8. The Upper Devonian rocks are Clayey marine carbonates interbedded with limestone, sandstone, and conglomerate.

9. În cambrian, silurian și devonian au existat numeroși reprezentanți ai Agnatelor cunoscuți cu

10. The stratigraphy of the Devonian is scarcely calibrated in relation to the absolute time scale.

11. According to the conodont and fusulinid fossils, their ages are determined to be Devonian -Permian.

12. Agnatha is the most ancient group of vertebrates, widely distributed in the Silurian and Devonian periods

13. Panderichthys, which was recovered from Frasnian (early Late Devonian) deposits in Latvia, is represented by two species.

14. Arborescent Lycopsids Arborescent (tree-like) lycopsids also probably diverged from Protolepidendrales during the late Middle Devonian (Givetian)

15. Between Alamo and the town of Rachel is the site of the Devonian Alamo Impact Breccia.

16. The Carboniferous was a geologic period from 358.9 mya (the Devonian period) to 298 mya (the Permian period)

17. Anaspida is a morphologically unique group among jawless vertebrates known only from the Silurian and Lower Devonian

18. The Carboniferous Period follows the Devonian Period and precedes the Permian Period and includes the Mississippian and Pennsylvanian Periods

19. The Carboniferous Period follows the Devonian Period and precedes the Permian Period and includes the Mississippian and Pennsylvanian Periods

20. The Carboniferous is separated from the earlier Devonian by the appearance of the conodont Siphonodella sulcata or Siphondella duplicata.

21. The Carboniferous Period follows the Devonian Period and precedes the Permian Period and includes the Mississippian and Pennsylvanian Periods

22. Anaspid - extinct small freshwater jawless fish usually having a heterocercal tail and an armored head; of the Silurian and Devonian

23. An alternative apparent polar wander path is suggested after adopting the reversed polarity option for pre-Devonian poles.

24. This formation is an outcropping of Devonian limestone created from a larger reef when most of Oregon was covered by water.

25. Schellkopf, Brenk, Brohltal, Ahrweiler District, Rhineland-Palatinate, Germany : Active phonolite quarry (selbergite, selbergite tuffs, Devonian schists) on Schellkopf mountain

26. Concretions as sources of exceptional preservation, and decay as a source of Concretions: examples from the middle Devonian of New York.

27. The lower Devonian Bois Blanc formation contains a variety of Cherts (Figure 4)— Colborne and Haldimand in the Appalachian Basin, and …

28. You can visit the Prince’s island Park, Fort Calgary, Glenbow Museum, Telus Spark, Calgary Zoo, Devonian Gardens or Bowness Park

29. Most oil shale deposits were formed during Middle Cambrian, Early and Middle Ordovician, Late Devonian, Late Jurassic and Paleogene times.

30. Boring thallophytes, probably fungi, possibly algae, were the cause of at least some skeletal micritization in Devonian reef complexes in western Canada.

31. 8 With meso-high porosity and permeability, the Donghe sandstone member of Upper Devonian Donghetang Formation is the most important pay bed.

32. Some fish had developed primitive lungs to help them breathe air when the stagnant pools of the Devonian swamps were low in oxygen.

33. Anaspid - extinct small freshwater jawless fish usually having a heterocercal tail and an armored head; of the Silurian and Devonian agnathan,

34. The Batholith formed during a Late Silurian to Early Devonian melting and rifting event that split the Ordovician to Early Silurian Macquarie Arc.

35. A now dry barrier reef, located in present-day Kimberley Basin of northwest Australia, once extended a thousand kilometres, fringing a Devonian continent.

36. Thermal, alternating field (AF), and two-stage (AF followed by thermal) experiments performed on one Silurian (Mascarene Group) and two Devonian (St.

37. The prospective impact crater has been dated to be greater than 70 million years old and possibly from the late Devonian Period.

38. This debris flow material was tectonically deformed prior to the Medial Devonian 'Acadian' orogeny, probably as a result of earlier 'Taconic' thrusting.

39. 7 In the melange zone there occur Devonian island arc-type intermediate and intermediate-acid volcanic rocks, which conformably overlie siliceous pelite.

40. 28 In the melange zone there occur Devonian island arc-type intermediate and intermediate-acid volcanic rocks, which conformably overlie siliceous pelite.

41. Fossils suggest that Arachnids were among the first animals to live on land, perhaps in the early Devonian Period, nearly 400 million years ago.

42. The rugose coral ‘Amplexus’ occurs frequently in the sedimentary cover of the Devonian submarine volcanic intrusion in the eastern Anti-Atlas, southern Morocco.This study elucidates the palaeoecology of ‘Amplexus’, which forms very rich and mostly monospecific, spot assemblages within the Lower and Middle Devonian carbonates.Geological and isotopic evidences show that these

43. Cystoid, any member of an extinct class (Cystoidea) of primitive echinoderms (animals with a hard, calcareous external skeleton, related to the modern sea lily and starfish) that first appeared during the Middle Ordovician Epoch and persisted into the Late Devonian Epoch (the Ordovician Period began about 488 million years ago, and the Devonian Period ended 359 million years ago).

44. The earliest amphibians evolved in the Devonian period from sarcopterygian fish with lungs and bony-limbed fins, features that were helpful in adapting to dry land.

45. 1 The metallogenic ages are the lower and upper Proterozoic Subera, late and earlier Palaeozoic Era, Mesozoic Era, with Devonian Period as an important metallogenic era.

46. Conodont — the problematical small tooth like fossil of the Cambrian, Silurian and Devonian periods which could well be a tooth of Cyclostomata … Dictionary of ichthyology

47. Allothigenic clay minerals, particularly of the platy type (kaolinite, hy- dromica, chlorite, montmorillonite, vermiculite), are characterized by isometrical Fig.5. Allothigenic hydromica, Lower Devonian, Volga-Ural region

48. A new psammosteid (Agnatha, Heterostraci) from the Amata Regional Stage of the Main Devonian Field and morpho-histological types of discrete micromeric elements in the family Psammosteidae.

49. The remaining species then died out during the Devonian/Carboniferous extinction event; not a single placoderm species has been confirmed to have survived into the Carboniferous.

50. It was found that there exit paleo- reservoir in Devonian stratum, Tianjingshan structure, in course of investigation of oil - sand resource in the northwest part of Sichuan Basin.

51. Latest Devonian to Early Carboniferous igneous rocks along the Cobequid shear zone of central Nova Scotia record a complex history of intrusion, volcanism, deformation, and hydrothermal alteration.

52. From Wikipedia, the free encyclopedia PrototAxites / ˌproʊtoʊˈtæksɪˌtiːz / is a genus of terrestrial fossil fungi dating from the Middle Ordovician until the Late Devonian periods, approximately 470 to …

53. MountainAir carbon is derived from an Allocthonous, subbituminous black coal deposited in the Devonian Period in a Pre- Cambrian formation within the Collie Basin over 230 million years ago

54. Extinct small freshwater jawless fish usually having a heterocercal tail and an armored head; of the Silurian and Devonian Familiarity information: Anaspid used as a noun is very rare.

55. Bacteria fossils discovered in rocks date from at least the Devonian Period (419.2 million to 358.9 million years ago), and there are convincing arguments that Bacteria have been present since …

56. The Carboniferous was the second-to-last period of the Paleozoic Era (541-252 million years ago), preceded by the Cambrian, Ordovician, Silurian, and Devonian periods and succeeded by the Permian period

57. All clymenüds as well as tornoceratids became extinct at or immediately after the Hangenberg Event, and the morphospace left behind by these Devonian groups was reoccupied only incompletely by the surviving prionoceratid ammonoids.

58. The bones of the skull roof in primitive lungfish are covered in a mineralized tissue called cosmine, but in post-Devonian lungfishes, the skull roof lies beneath the skin and the cosmine covering is lost.

59. Anaspid definition, any member of an extinct order, Anaspida, of small, freshwater jawless fishes of the Silurian and Devonian periods, characterized by a single nostril, narrow rows of scales, and, usually, an armor-plated head

60. A renewed TGI two-year program will include an aeromagnetic survey in the Marrtown area of southern New Brunswick and hydrocarbon potential studies in the Carboniferous Moncton Subbasin and in Devonian rocks of northern New Brunswick.

61. The Carboniferous was a time of diverse marine invertebrates. The Late Devonian Period experienced major extinctions within some marine invertebrate groups, and Carboniferous faunas reflect a different composition from what had prevailed earlier in the Paleozoic Era.

62. The oldest cleavage (previously published, whole-rock, 40Ar/39Ar plateau ages of 415–395 Ma) dates the onset of crustal thickening, which was followed by voluminous, but short-lived, Late Devonian granitic and minor mafic magmatism (380–370 Ma).

63. In rock samples of a Middle Devonian spilitized basaltic sill near Langelsheim (Northwestern Harz Mountains) the following mineral assemblage: pumpellyite + prehnite + epidote + actinolite grown in a groundmass of albite, chlorite, calcite and quartz has been studied by use of a microprobe.

64. 2 capitalized : of, relating to, or being the period of the Paleozoic era between the Devonian and the Permian or the corresponding system of rocks that includes coal beds — see Geologic Time Table Other Words from Carboniferous Example Sentences Learn More about Carboniferous …

65. The oldest known freshwater Bivalves are from the Devonian, but the major non-marine radiation occurred in the Triassic with the appearance of the Unionoida, which today includes more than 960 species, and is one of the most endangered animal groups on …

66. The Commingling of the two currents gives rise frequently to westerly and occasionally to easterly winds. The Onondaga fauna which succeeded appears to have resulted from the Commingling of the resident lower Devonian fauna with new emigrants from Europe by way of the Arctic regions.

67. Read more about Paleontology of the Surprise Canyon Formation (Mississipppian) in Grand Canyon, Arizona, in Boaz, Debra, and others, eds., Proceedings of the Third Annual Fossils of Arizona Symposium, November 18, 1995; Upper Devonian-Lower Mississippian Conodont biostratigraphy and depositional patterns, southwestern New Mexico and southeastern Arizona

68. The Cambrian was the first period of the Paleozoic Era (542-250 million years ago), followed by the Ordovician, Silurian, Devonian, Carboniferous and Permian periods; all of these periods, as well as the succeeding Mesozoic and Cenozoic Eras, were dominated by the vertebrates that first evolved during the Cambrian.

69. ‘The main slivers of Devonian rocks found within the fault zone in the Rhynie area are sandstones and Andesite in the Rhyme block and the Longcroft Tuffs in the Windyfield block.’ ‘The volcanic strata consist of sheet-like flows of Andesite, dacite, basalts, and trachybasalts that are …

70. Other articles where Caledonian orogeny is discussed: Devonian Period: Significant geologic events: …by a mountain-building event, the Caledonian orogeny, that established a mountain chain stretching from present-day eastern North America through Greenland, western Scandinavia, Scotland, Ireland, and northern England and south to the fringes of western North Africa.

71. The Devonian–Carboniferous boundary interval was a time of global regression with a major sequence boundary located slightly below it (Paproth et al., 1991).The GSSP for the base of the Tournaisian Stage, Mississippian Subperiod and Carboniferous Period has been defined in trench E at La Serre section, Montagne Noire, southern France (Paproth et al., 1991) (Figure 23.2).

72. The name Apterygota is sometimes applied to a subclass of small, agile insects, distinguished from other insects by their lack of wings in the present and in their evolutionary history; notable examples are the silverfish, the firebrat, and the jumping bristletails.Their first known occurrence in the fossil record is during the Devonian period, 417–354 million years ago.

73. The Carboniferous time period (the name is derived from the Latin word Carbo that is a form of the Latin word Carbonis - coal) was the fifth time period of the Palaeozoic.It was situated between the Devonian and the Permian, and lasted from 354 to 290 MYA - roughly for 60 million years, give or take 10 million years at each end.