2015
DOI: 10.1080/09853111.2015.1035208
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A peculiar reworking ofOphiomorphashafts in the Miocene Nangang Formation, Taiwan

Abstract: In the Miocene sandstones of the Nankang Formation in north-eastern Taiwan, different varieties of the trace fossil Ophiomorpha are abundant. In certain beds, a peculiar reworking of vertical Ophiomorpha shafts was observed. This reworking consists of an inner, lined tube positioned in the centre of the shaft. The shaft is lined by thin walls with small knobs and is distinctly different from the shafts of the Ophiomorpha nodosa mazes found in the same beds which have thick walls and large knobs. Because both o… Show more

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Cited by 13 publications
(4 citation statements)
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“…Robust decapod crustaceans are responsible for producing large burrows (roughly 20 mm wide), including Ophiomorpha isp., softground and firmground Thalassinoides isp., and Rhizocorallium isp. (Neto de Carvalho et al ., 2007; Löwemark et al ., 2016; Netto et al ., 2017). These dwelling structures (produced by suspension feeders, except for Rhizocorallium isp.)…”
Section: Resultsmentioning
confidence: 99%
“…Robust decapod crustaceans are responsible for producing large burrows (roughly 20 mm wide), including Ophiomorpha isp., softground and firmground Thalassinoides isp., and Rhizocorallium isp. (Neto de Carvalho et al ., 2007; Löwemark et al ., 2016; Netto et al ., 2017). These dwelling structures (produced by suspension feeders, except for Rhizocorallium isp.)…”
Section: Resultsmentioning
confidence: 99%
“…There are multiple trace makers that can produce large, lined burrows like Pennichnus and the three most probable animal groups are infaunal shrimp; fast-burrowing, siphonated bivalves; and, large polychaetes. Shrimp are well known for constructing open burrow networks 38 , 39 and sometimes their burrows contain an inner tube potentially constructed by juvenile shrimp that re-occupy abandoned or infilled burrows 40 . However, shrimp burrow networks constructed in water-saturated sand typically comprise complicated shapes, like mazes or boxworks, and have turn-around chambers 41 , 42 .…”
Section: Discussionmentioning
confidence: 99%
“…How ever, they can be a source of com ple men tary in forma tion on the palaeoenvironment. Other ex am ples of zom bie biogenic struc tures come from some trace fos sils, par tic u larly Ophiomorpha, frag ments of which can be re de pos ited as clasts (Löwemark et al, 2016;Pedrol de Freitas et al, 2020). Re de pos ited rhizocretions/rhizoliths are very rarely recorded in the lit er a ture.…”
Section: General Remarksmentioning
confidence: 99%