Eurypterid palaeoecology: palaeobiological, ichnological
and comparative evidence for a 'mass-moult-mate' hypothesis.
As in the Ardanatz Sandstone unit, the ichnological
analysis of the sandy levels intercalated in the lower part of the Ilundain marls shows abundant ophiomorphids, especially Ophiomorpha isp.
record in Ordovician mudstones: examples from the Cincinnatian strata of Ohio and Kentucky (USA).
features of a marine transgression: middle Miocene rocky shores of Tarragona, Spain.
2003): Crouching theropods in taxonomic jungles: ichnological
and ichnotaxonomic invesigations of footprints with metatarsal and ischial impressions.
In the case of Maastrichtian material, the most plausible explanation seems to be redistribution of impact material by bioturbation, in agreement with the detailed ichnological
and bioturbation studies of Rodriguez-Tovar (2005), Rodriguez-Tovar & Uchman (2006) and Rodriguez-Tovar et al.
Thus, the ichnological
character of the Bloomsburg Red Beds suggests a brackish water origin (near a marine shoreline) for the trackway-bearing strata.
This paper reports what appears to be the first ichnological
record of vertebrate activity in the Miocene in east Texas.
The resulting volume is a worthwhile contribution to the ichnological
literature, but one that ultimately aims higher than it reaches.
Papers discuss the recognition of stratigraphical surfaces in shallow to marginal marine depositional systems and in non-marine systems; the use of the ichnofacies concept to determine paleobathymetry; the study of ichnofabrics as developed in sedimentary rocks through pedogenic and biogenic processes; ichnological
interpretation of ancient depositional environments (from deep water to non-marine settings), and the change of trace fossil assemblages over time.
An interesting ichnological
feature of the Baltic Group is the lack of traditional arthropod-type trace fossils.
Lull 1920; Willard and Cleaves 1930) were published on a relatively small number of specimens from New England, so few that Lucas (2007) considered the tetrapod track record of the region to be "scattered" Rather than being the result of a scarcity of trace fossils, however, the dearth of ichnological
studies in the Narragansett Basin most likely results from the rocks being inaccessible due to vegetation and urban sprawl, as well as from them being tectonically overprinted, which distorts and obscures the tracks (Fichman et al.