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Asteriacites

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Journal Article
Journal: PALAIOS
Published: 01 April 2016
PALAIOS (2016) 31 (4): 161–176.
... preservation and low diversity. Documented ichnogenera include Asteriacites lumbricalis, Gyrochorte comosa, Diplocraterion habichi and Planolites beverleyensis . The ichnofaunal composition and the bioturbation style suggest a marginal marine paleoenvironment ranging from intertidal to shallow subtidal...
FIGURES | View All (10)
Series: SEPM Special Publication
Published: 01 January 2007
DOI: 10.2110/pec.07.88.0097
EISBN: 9781565762909
... about the detailed sedimentary succession and its fossil content. This paper describes ophiuroid trace fossils assigned to Asteriacites from the Mulichinco Formation of Early Valanginian age, the sedimentary context in which these and other trace fossils are preserved, and their paleoenvironmental...
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Preservational styles of  <b>Asteriacites</b> .  A ) Convex hyporelief preservatio...
in > PALAIOS
Published: 01 April 2016
Fig. 3.— Preservational styles of Asteriacites . A ) Convex hyporelief preservation. Note groove casts (Gr). B ) Concave epirelief preservation. The specimen shows small apparent arms, possibly indicating ‘arm tipping’ behavior. C ) Asteriacites specimens filled by darker, less micaceous
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Morphometrics of  <b>Asteriacites</b> lumbricalis  and Lower Triassic ophiuroids o...
in > PALAIOS
Published: 01 April 2016
Table 3.— Morphometrics of Asteriacites lumbricalis and Lower Triassic ophiuroids of Italy (n=the number of measured specimens). Because of their excellent preservation, the specimens of Asteriacites of Figure 4 have been selected as representative of the studied site. The holotype
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<b>Asteriacites</b>  assemblage. Specimen 332315 of the Ampezzo museum.  A )  Aste...
in > PALAIOS
Published: 01 April 2016
Fig. 4.— Asteriacites assemblage. Specimen 332315 of the Ampezzo museum. A ) Asteriacites preserved as convex hyporeliefs. Groove casts (Gr) suggests that preservation is related to storm deposition. B ) Interpretive drawing of the specimen figured in A.
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Ornamentation of  <b>Asteriacites</b> . A) Convex hyporelief. Detail of the slab s...
in > PALAIOS
Published: 01 April 2016
Fig. 5.— Ornamentation of Asteriacites . A) Convex hyporelief. Detail of the slab shown in Figure 4. Arrows point to the areas magnified in B (b) and C (c). B ) U-shaped and chevron-like ornamentation. This ornamentation is interpreted to reflect ambulacra activity. C ) Transverse
Journal Article
Published: 01 February 2005
Journal of Paleontology (2005) 79 (2): 395–399.
... living asteroids and unlike approximately coeval somasteroids. The similar ages of Eriaster and the oldest-known somasteroid challenge the candidacy of the latter as basal to asteroids. Trace fossils assigned to Asteriacites have been recovered from strata as ancient as Lower Cambrian. Asteriacites from...
FIGURES
Series: SEPM Special Publication
Published: 01 January 2007
DOI: 10.2110/pec.07.88.0195
EISBN: 9781565762909
... are generally influenced by lowered salinities. This paper documents the ichnology of the tide-dominated Lajas Formation, which includes a diverse ichnofauna, much of which is subject to tidal conditions, though not necessarily to reduced salinity. The ichnogenera recorded include: Asteriacites, Arenicolites...
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Journal Article
Journal: PALAIOS
Published: 01 June 2005
PALAIOS (2005) 20 (3): 213–223.
... discoveries in Lower Triassic rocks from northern Italy and western US suggest that ophiuroids were more common during this time than previously has been appreciated. Evidence from resting traces ( Asteriacites lumbricalis ) indicates that Early Triassic ophiuroids lived on fine-grained siliciclastic...
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Journal Article
Journal: Geology
Published: 01 May 2004
Geology (2004) 32 (5): 461–464.
... that wrinkle structures formed under reduced infaunalization conditions during the aftermath of the end-Permian mass extinction. These wrinkle structures occur in siliciclastic sedimentary rocks in association with hummocky cross-stratification and, in some cases, trace fossils such as Asteriacites...
FIGURES
Series: SEPM Special Publication
Published: 01 January 1985
DOI: 10.2110/pec.85.35.0021
EISBN: 9781565761650
...-grained sandstone horizons within the Rock Lake Shale, Timberhill Siltstone, and Lawrence Shale. These units were commonly thought to be nonmarine (freshwater to subaerial exposure) due to the general lack of marine body fossils. Common trace fossils are Asteriacites, Lingulichnus. lsopodirhnus...
Journal Article
Published: 01 September 1980
Canadian Journal of Earth Sciences (1980) 17 (9): 1259–1270.
...R. K. Pickerill Abstract An Ordovician flysch trace fossil assemblage from the Aroostook–Matapedia Carbonate Belt, northern New Brunswick, consists of the following identifiable ichnogenera: Alcyonidiopsis , Asteriacites , Asterosoma , Belorhaphe , Bifasciculus , Buthotrephis , Chondrites...
Journal Article
Journal: GSA Bulletin
Published: 30 December 1924
GSA Bulletin (1924) 35 (4): 785–822.
...T. WAYLAND VAUGHAN Abstract Introduction American Tertiary species of the following genera are here briefly considered: Nummulites, Operculina, Heterostegina, “Orthophragmina” under which are included Discocyclina, Asteriacites, and Pseudophragmina, Lepidocyclina and its allies, Helicolepidina...
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Paleoenvironmental conceptual model of the Mount Pallone ichnosite. Abbrevi...
in > PALAIOS
Published: 01 April 2016
Fig. 9.— Paleoenvironmental conceptual model of the Mount Pallone ichnosite. Abbreviations: Gy= Gyrochorte; Di= Diplocraterion; As= Asteriacites ; Pl= Planolites .
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FIGURE 2 —Specimens of Early Triassic ophiuroids and associated fauna. The ...
in > PALAIOS
Published: 01 June 2005
) Articulated ophiuroid arm fragment in association with unnamed bryozoan, Thaynes Formation, Montello, Nevada. (I) Disarticulated ophiuroid ossicles and Holocrinus ossicles on the base of a tempestite, Thaynes Formation, Montello, Nevada. (J) Asteriacites lumbricalis in convex hyporelief, Moenkopi
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Behavioral interpretation of the tracemaker. The substrate has not been fig...
in > PALAIOS
Published: 01 April 2016
commonly exhibited by specimens preserved in concave epirelief. This strategy is consistent with arm waving behavior described by Oak and Scheibling (2006) . C ) Vertical reaccommodation of Asteriacites , corresponding to specimen in Figure 3C.
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The Cruziana ichnofacies consists of several trace fossils. During the Jura...
in > GeoArabia
Published: 01 October 2015
Figure 20c: The Cruziana ichnofacies consists of several trace fossils. During the Jurassic and Cretaceous the most common ones are Arthropod tracks, Ophiomorpha (Thalassinoides), Rhizocorallium, Asteriacites, Actinian burrows, Lockeia, Curvolithus, Gyrochorte, Teichichnus, Diplocraterion
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Protovirgularia  isp. Morphotypes A, B and C.  A ) Specimen RSKM P3310.5, m...
in > PALAIOS
Published: 16 July 2019
-defined, close chevrons. C ) Specimen KUMIP 289865, morphotype A. Positive hyporelief showing poorly preserved chevrons of Protovirgularia and blurred margins of Asteriacites ( As ). D ) Specimen RSKM P3310.20, morphotype C. Positive hyporelief showing well-preserved widely spaced chevrons
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FIGURE 5 —Sedimentology and depositional environment of the upper Moenkopi ...
in > PALAIOS
Published: 01 June 2005
of Asteriacites lumbricalis and other trace-fossil taxa. Ichnofabric index (ii) after Droser and Bottjer (1986) . Roman numerals I–VI refer to facies discussed in the text. (B) Schematic reconstruction of Virgin Limestone depositional environment, showing inferred distribution of facies I through VI. See text
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Protovirgularia rugosa , morphotypes B and C.  A ,  B ) Specimen RSKM P3310...
in > PALAIOS
Published: 16 July 2019
spaced chevrons of Protovirgularia ( Pr ) and associated Lockeia ( Lo ), Asteriacites ( As ), and cruzianiform structures (Cr). All scale bars = 1 cm.