Matches in SemOpenAlex for { <https://semopenalex.org/work/W2783121255> ?p ?o ?g. }
Showing items 1 to 51 of
51
with 100 items per page.
- W2783121255 abstract "The Machaeridia is an enigmatic marine fossil group which has been variously allied with the cirripedians, molluscs, annelids, and echinoderms. Although machaeridians have previously been unreported from rocks younger than earliest Pennsylvanian (late Namurian), members of the machaeridian order Turrilepadida are now found to be locally abundant well into the Permian. New occurrences of turrilepadidan sclerites are reported from the Late Pennsylvanian of Texas and the Early Permian of Texas and Nevada. Turrilepadidan sclerites are common in marine shales of Missourian and Virgilian age in north-central Texas. Well preserved turrilepadidan sclerites have been found in the Wolf Mountain Shale (Missourian) and in the Colony Creek, Finis, and Necessity Shales (Virgilian) of north-central Texas. A few sclerites have a high number of closely spaced rugae and are similar to those of Turrilepas , but the most common types of sclerites have relatively few, widely spaced rugae, and many of these show radial ornament like that found on sclerites assigned to the genus Clarkeolepis . Although most forms would be placed in the family Turrilepadidae, a partial specimen from the Finis Shale appears to be a lepidocoleidid sclerite. Silicified sclerites of Permian age have been found in two marine carbonate units: the upper part of the Bird Spring Formation (late Wolfcampian or early Leonardian) of southern Nevada and in the Cathedral Mountain Formation (Leonardian) of West Texas. Although their details are generally poorly preserved, these sclerites appear to be representative of members of the family Turrilepadidae with a different taxon found at each of the two localities. The paleoecology of turrilepadidans is not well known, but each of these occurrences is from a locality that represented an area with a muddy bottom, a slow rate of deposition, and an unusually diverse fauna. The fauna at each horizon is dominated by a large number of brachiopod and mollusc species, many of which were conspicuously encrusted or bored during life or afterwards. Although a few of the sclerites show postmortem encrustations on their inner or outer surfaces, the overall lack of borings or encrustations suggests that the turrilepadidans were mobile, possibly infaunal organisms." @default.
- W2783121255 created "2018-01-26" @default.
- W2783121255 creator A5027290575 @default.
- W2783121255 date "1992-01-01" @default.
- W2783121255 modified "2023-09-23" @default.
- W2783121255 title "Late Pennsylvanian and Permian Turrilepadida (Machaeridia) from the western and south-central United States" @default.
- W2783121255 doi "https://doi.org/10.1017/s2475262200007140" @default.
- W2783121255 hasPublicationYear "1992" @default.
- W2783121255 type Work @default.
- W2783121255 sameAs 2783121255 @default.
- W2783121255 citedByCount "0" @default.
- W2783121255 crossrefType "journal-article" @default.
- W2783121255 hasAuthorship W2783121255A5027290575 @default.
- W2783121255 hasBestOaLocation W27831212551 @default.
- W2783121255 hasConcept C109007969 @default.
- W2783121255 hasConcept C127313418 @default.
- W2783121255 hasConcept C151730666 @default.
- W2783121255 hasConcept C2779650180 @default.
- W2783121255 hasConcept C83365034 @default.
- W2783121255 hasConceptScore W2783121255C109007969 @default.
- W2783121255 hasConceptScore W2783121255C127313418 @default.
- W2783121255 hasConceptScore W2783121255C151730666 @default.
- W2783121255 hasConceptScore W2783121255C2779650180 @default.
- W2783121255 hasConceptScore W2783121255C83365034 @default.
- W2783121255 hasLocation W27831212551 @default.
- W2783121255 hasOpenAccess W2783121255 @default.
- W2783121255 hasPrimaryLocation W27831212551 @default.
- W2783121255 hasRelatedWork W1847050562 @default.
- W2783121255 hasRelatedWork W1982009605 @default.
- W2783121255 hasRelatedWork W1986612828 @default.
- W2783121255 hasRelatedWork W1992431077 @default.
- W2783121255 hasRelatedWork W2000967946 @default.
- W2783121255 hasRelatedWork W2073428135 @default.
- W2783121255 hasRelatedWork W2204830612 @default.
- W2783121255 hasRelatedWork W2207615168 @default.
- W2783121255 hasRelatedWork W2210676283 @default.
- W2783121255 hasRelatedWork W2243503692 @default.
- W2783121255 hasRelatedWork W2254339409 @default.
- W2783121255 hasRelatedWork W2296371320 @default.
- W2783121255 hasRelatedWork W2312423467 @default.
- W2783121255 hasRelatedWork W2339410260 @default.
- W2783121255 hasRelatedWork W2603884846 @default.
- W2783121255 hasRelatedWork W2780948192 @default.
- W2783121255 hasRelatedWork W2946621045 @default.
- W2783121255 hasRelatedWork W640310988 @default.
- W2783121255 hasRelatedWork W2989588462 @default.
- W2783121255 hasRelatedWork W3035557947 @default.
- W2783121255 isParatext "false" @default.
- W2783121255 isRetracted "false" @default.
- W2783121255 magId "2783121255" @default.
- W2783121255 workType "article" @default.