Topic
Encrinite
About: Encrinite is a research topic. Over the lifetime, 9 publications have been published within this topic receiving 48 citations.
Papers
1 Jan 1999
TL;DR: In 1842, Horace Hovey was collecting encrinites along the banks of Sugar Creek, north of Crawfordsville, Indiana, and discovered a calcareous "warty toad" as mentioned in this paper.
Abstract: In 1842 Horace Hovey was collecting ‘encrinites’ along the banks of Sugar Creek, north of Crawfordsville, Indiana. He was collecting in response to an advertisement offering $5 per bushel for ‘encrinites.’ In addition to ‘encrinites’, this nine-year-old boy discovered a calcareous ‘warty toad’, the first crinoid calyx (a specimen of Abatocrinus grandis; see Fig. 154 for a complete crown) from the now-famous Crawfordsville crinoid beds. Perhaps it is fitting that the first crinoid calyx discovered at Crawfordsville was found by someone who was fossil collecting for profit, because the magnificent Crawfordsville crinoids have been highly prized fossils ever since. Crawfordsville is one of the richest accumulations of exquisitely preserved crinoids in the world, and it has attracted numerous scientists, amateur collectors and professional collectors for the 150 years since the ‘warty toad’ was discovered. As in the latter half of the 19th century, today Crawfordsville crinoids are actively being studied by palaeontologists and sought by professional collectors.
9 citations
TL;DR: Ausich et al. as discussed by the authors interpreted the expansion of crinoids during the Tournaisian as a recovery phase following the Late Devonian extinctions, as it induced a rapid re-colonisation of the ecological niches by crinoid and then a rapid evolution.
Abstract: 1. Introduction The Mississippian (Lower Carboniferous) and particularly the Tournaisian is known as the golden age of crinoids (Kammer & Ausich, 2006). In suitable settings, the crinoids lived in vast meadows that formed the carbonate rock through the accumulation of their skeletal elements and named regional encrinites (sensu Ausich, 1997). Tournaisian encrinites are wide developed all over the world with renown examples from Ireland (Waters & Sevastopulo, 1984), N America (Ausich, 1999a,b), S China (Chen & Yao, 1993), Iran (Webster et al., 2003), etc. The expansion of crinoids during the Tournaisian is interpreted as a recovery phase following the Late Devonian extinctions, as it induced a rapid re-colonisation of the ecological niches by crinoids and then a rapid evolution (McGhee, 1996). The autoecology of crinoids is relatively well understood (Ausich & Bottjer, 1982, 2007; Ausich & Simms, 1999; Ausich et al., 1999a) in contrast to their synecology (i.e. interactions with the environment and with other organisms) despite their ability to shape their environment. In South Belgium, Tournaisian encrinites are abundant and locally called “Petit Granit” where quarried as cut stones for building and carving purposes. Several units were – and still are – intensively quarried for these purposes: the Hastiere Formation (Fm), Landelies Fm, Ourthe Fm, Flemalle Membre (Mbr) and Soignies Mbr. The most valuable and renowned are the encrinites of the Ourthe Fm in the Condroz area (cen
9 citations
1 Oct 1999
8 citations
TL;DR: In this article, columnals of Hispidocrinus cf. schlumbergeri and Balanocrinus donovani are represented as local encrinites that have been deposited parautochthonously; one in a proximal, and the other in a more offshore low energy environment.
Abstract: Synopsis Despite a long history of investigation, articulate crinoids from the Jurassic of Scotland have not received great attention compared to their counterparts in Southern England or continental Europe; this is thought to be largely due to poor preservation. Two examples of ‘local’ encrinites (rocks almost entirely composed of crinoids debris), one from the Pliensbachian and the other from the Aalenian/Bajocian from the Isle of Skye, are shown to consist of columnals of Hispidocrinus cf. schlumbergeri and Balanocrinus donovani respectively. They represent local encrinites that have been deposited parautochthonously; one in a proximal, and the other in a more offshore low energy environment. This demonstrates that even limited encrinite material can not only be assigned systematically, but can also be used to reconstruct the original palaeoenvironments that the crinoids inhabited.
7 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2018 | 1 |
| 2017 | 1 |
| 2009 | 1 |
| 2003 | 1 |
| 2000 | 1 |
| 1999 | 4 |