UTRECHT MICROPALEONTOLOGICAL BUllETINS

More documents

Recommendations

Info

1.2.3.1. Diagnosis This formation contains predominantly red to brown, slightly marly fossiliferous limestones with many internal disconformities. The basal part may have pale red and green colours. Marl intercalations are commonly present, except in the upper portion. Remains of fossils are the most frequently occurring allochems; occasional glauconite grains are present. The composition of the Bruddesta Formation in its type-section, at Kopingsklint and near Horns Udde is shown in fig. 9 and in the charts II and IV, respectively. 1.2.3.2. Type-locality and type-section Section 6 at about 0.7 km. south of Bruddesta (fig. 2). 1.2.3.3. Differential diagnosis The Bruddesta Formation contains more fragments of fossils and less glauconite grains than the Kopingsklint Formation. In contrast with the latter formation, it lacks grainstones. The Bruddesta Formation may be differentiated from the overlying Horns Udde Formation by its higher content of clay, which occurs concentrated in the marl intercalations and admixed to the limestone beds. Moreover, the Horns Udde Formation does not contain fossiliferous mudstones, contrary to the Bruddesta Formation. 1.2.4.1. Diagnosis The formation is characterized by greenish red, or green and red variegated highly fossiliferous limestones. It is interspersed by innumerable disconformities with brown-yellow (= goethitic) conversion zones. Remains of fossils are th~ most frequent allochems; they are often brown-yellow, red-brown or green stained. Orthoceratids are relatively abundant, glauconite grains are rare. The type-section of the Horns Udde Formation is given in fig. 10; the composition of the formation at Kopingsklint and in section 6 is shown in charts II and III.
Horns Udde Formation - Bruddesta --=-- - c--= r== u - "Slommiga Bladet" l)DOUOO (= "the Flowery Sheet" iO" 7. '" u v u Formation ::::::-=::::--= - - -- =--- ..,~ k,,::,',,:':,,:,1 CJ ''':. Kopingsklint Formation The type-section of the Bruddesta Formation, situated at about 0.7 km. south of Bruddesta (section 6, fig. 2). Legend: 1 = marl. 2 = nodular, marly limestone. 3 = glauconitic limestone. 4 = fossiliferous limestone. 5 = disconformities. 6 = stylolith planes.
Page 1 and 2: UTRECHT MICROPALEONTOLOGICAL BUllET
Page 3 and 4: CONODONT BIOSTRATIGRAPHY OF THE UPP
Page 5 and 6: 11.2.4.6. 11.2.4.7. 11.2.4.8. The P
Page 7 and 8: This paper forms part of the author
Page 9 and 10: The Cambrian-Ordovician sequence co
Page 11 and 12: -E Section C Section b w Section a
Page 13 and 14: 1.2.1.2. Type-locality and type-sec
Page 15: Locolity 2 _S 0- Fig. 8 The Kopings
Page 19 and 20: Figure 11 summarizes the biozonatio
Page 21 and 22: Ordovician limestones of Sweden (19
Page 23 and 24: Ljthostratigraphic Lithostratlunits
Page 25 and 26: formities in the rock-sections. By
Page 27 and 28: The highly discontinuous character
Page 29 and 30: Type-locality: Kopingsklint, sectio
Page 31 and 32: Type-stratum: The limestone bed in
Page 33 and 34: section 6. Paracordylodus gracilis
Page 35 and 36: II.2.4.15. The Prioniodus crassulus
Page 37 and 38: 11.2.4.18. The Drepanoistodus force
Page 39 and 40: BIOSTRATIGRAPHIC AND CHRONOSTRATIGR
Page 41 and 42: norvegicum and Bryograptus kjeruifi
Page 43 and 44: Lithostratigraphic classification u
Page 45 and 46: Kk2 near Horns Udde (see locality 2
Page 47 and 48: III,3. CORRELATION WITH LINDSTROM'S
Page 49 and 50: navis/P.crassulus Zone (figs. 15 an
Page 51 and 52: fig. 19 Sergeeva's conodont zones a
Page 53 and 54: found on bland, and in fig. 19 a bi
Page 55 and 56: Oistod;;.s-l~;;;olatus/P;i~niod;'s
Page 57 and 58: IV.I. INTRODUCTION Wherever possibl
Page 59 and 60: each the cusp. Where the depression
Page 61 and 62: d) The denticulation. Sometimes the
Page 63 and 64: Udde from member Dh 1 up to the top
Page 65 and 66: teristic and Pander's drawing is ve
Page 67 and 68:
The oistodiform elements are highly
Page 69 and 70:
Drepanoistodus inconstans (LINDSTRO
Page 71 and 72:
Drepanodus amoenus and Oistodus par
Page 73 and 74:
Regional occurrence: At Kopingsklin
Page 75 and 76:
oistodiform element (PI. 7, figs. 7
Page 77 and 78:
Genus Oistodus PANDER, emend. VAN W
Page 79 and 80:
Regional occurrence: At Kopingsklin
Page 81 and 82:
of Drepanodus arcuatus PANDER, emen
Page 83 and 84:
Remarks: Throughout the Oland secti
Page 85 and 86:
elements (after Trapezognathus LIND
Page 87 and 88:
(LINDSTROM), emend. herein (see PI.
Page 89 and 90:
conodonts" and the "complex conodon
Page 91 and 92:
in member Ka- d 1 and Ka- d 2 of se
Page 93 and 94:
Protopanderodus latus n. sp. (PI. 4
Page 95 and 96:
Protopanderodus rectus (LINDSTROM),
Page 97 and 98:
it is not thickened towards the rim
Page 99 and 100:
flaring and opens to the least conv
Page 101 and 102:
emend. herein (PI. 2, figs. 9, 10).
Page 103 and 104:
1961: Discontinuity surfaces in lim
Page 106:
Figs. 1a and 1b Coelocerodontus bic
Page 110:
Figs. 1~4 Drepanoistodus conulatus
Page 114:
Figs. 1-7 Triangulodus brevi basis
Page 118:
Figs. 1-4 Oelandodus elongatus (LIN
Page 121 and 122:
~~ Light green shale. tP}·('WJ Lig
Page 123:
Names of conodont elements. ac acod
Page 127 and 128:
Names of conodont elements. ac acod
show all

UTRECHT MICROPALEONTOLOGICAL BUllETINS

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?