소개
The Mazon Creek fossil beds are a conservation lagerstätte found near Morris, in Grundy County, Illinois. The fossils are preserved in ironstone concretions, formed approximately 309 million years ago in the mid-Pennsylvanian epoch of the Carboniferous period. These concretions frequently preserve both hard and soft tissues of animal and plant materials, as well as many soft-bodied organisms that do not normally fossilize. The quality, quantity and diversity of fossils in the area, known since the mid-nineteenth century, make the Mazon Creek lagerstätte important to paleontologists attempting to reconstruct the paleoecology of the sites. The locality was declared a National Historic Landmark in 1997.
주요 정보
- 분류
- 랜드마크
- 지정 등급
- 국가역사기념물 (NHL)
- 지정 연도
- 1997
- 소재 주
- 일리노이
데이터 출처: Wikidata (CC0). 정보는 공개 데이터 기준이며 정확성·최신성을 보장하지 않습니다.