| 000 -LEADER |
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| fixed length control field |
01300nab a2200193 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
GSMBLIc |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
220119b ||||| |||| 00| 0 eng d |
| 041 ## - LANGUAGE CODE |
|---|
| Language code of text/sound track or separate title |
Einglish Language |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Hallam, A. |
| 9 (RLIN) |
11542 |
| 245 ## - TITLE STATEMENT |
|---|
| Title |
On the supposed evolution of gryphaea in the Lias |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
99-108pp. |
| 520 ## - SUMMARY, ETC. |
|---|
| Summary, etc. |
Abstract<br/>A re-examination of Hettangian and Lower Sinemurian oysters has led to the rejection of Trueman's hypothesis on the evolution of Liostrea into Gryphaea. Gryphaea assemblages from two horizons in different parts of Britain have been subjected to bivariate and size frequency analysis. The only detectable difference is a slight size increase up the succession. No “gryphaeoid” trend is discernible in Liostrea up the Hettangian succession and the change to Gryphaea is in consequence abrupt. All the oysters of Trueman's series are referred to what are considered to be two different Linnaean species. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Evolution - Gryphaea - Lias - England |
| 9 (RLIN) |
15160 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Lower jurassic - Lias - England |
| 9 (RLIN) |
15161 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Paleontology - England |
| 9 (RLIN) |
11540 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Distinction - Between Loistrea - Gryphaea |
| 9 (RLIN) |
15162 |
| 773 0# - HOST ITEM ENTRY |
|---|
| Host Biblionumber |
1911 |
| Host Itemnumber |
2199 |
| Place, publisher, and date of publication |
Hertz Stephen Austin & Sons 1959 |
| Other item identifier |
002544 |
| Title |
Geological magazine : Vol. 96 Iss. 1-6 Year. 1959 |
| International Standard Serial Number |
00167568 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
|
| Call number suffix |
{082b} |
| Koha item type |
Article |
