Ammonite Fossil Plate

An Ammonite Fossil Plate is a mid-nineteenth-century palaeontology lithograph: a spiral-chambered ammonite rendered in yellow ochre and raw sienna, hand-coloured over engraved line, washed across toned rag paper that has darkened and foxed with age. It belongs to the dawn of geological science — the world of De la Beche and the Sowerby illustration dynasty, when fossils were first drawn with strata notes and numbered captions in engraved serif.

This system carries that plate into the screen. Backgrounds are warm aged paper, never fresh cream; colour is muted earth pigment, never bright digital saturation; type is period serif, set with the quiet authority of an old reading. Cards become plate panels, dividers become ruled strata lines, and the logarithmic spiral of the ammonite is the recurring ornament.

「菊石化石图版」是一幅十九世纪中叶的古生物学石版画：螺旋分隔的菊石以赭黄与生赭 手工上色，覆在已被岁月染深、生出霉斑的纸面之上。它属于地质科学的黎明时代——德拉 贝什与索尔比绘图世家的年代，那时化石第一次被配上地层注记，用刻版衬线体编号、加上 说明文字。

这套设计把那张古老图版搬上屏幕。底色永远是发暖的陈年纸张，绝不用崭新的米白；颜色 只取赭石、生赭、焦棕这些被压低的土质颜料，从不用明亮饱和的数码色；字体是带刻版气 质的古典衬线，排起来像一本读旧了的书那般安静而笃定。卡片化为图版面板，分隔线化为 细刻的地层线，而菊石的对数螺旋则是反复出现的纹样。