First report on vertebrate coprolites from the Upper Cretaceous (Santonian) Csehbánya Formation of Iharkút, Hungary

Segesdi, Martin; Botfalvai, Gábor; Bodor, Emese; Ősi, Attila; Buczkó, Krisztina; Dallos, Zsolt; Tokai, Richárd; Földes, Tamás

doi:10.1016/j.cretres.2017.02.010

Cited by 17 publications

(11 citation statements)

References 45 publications

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“…The Las Hoyas coprolites form a continuum in size (as measured by the corresponding major dimension): the smaller size is rather tiny (5 to 8 mm). Such small size has been previously reported from some lacustrine environments [ 23 , 38 , 39 ].…”

Section: Discussionsupporting

confidence: 73%

“…Lack of transport is indicated by absence of abrasion even on the smallest and narrowest specimens. Transport of aquatic faeces is common in rivers, resulting in dense allochthonous accumulations in small areas of dead-water zones, backwaters, river margins, and lowlands [ 39 , 67 ]. Such density is very rare in Las Hoyas.…”

Section: Discussionmentioning

confidence: 99%

“…However, there are not many fluvial and lacustrine Mesozoic deposits with rich coprolite associations. The Greenland Kap Stewart Formation [ 38 ], with about five hundred specimens, and the Csehbánya in Hungary [ 39 ], with more than two thousand coprolites accumulated in a small area, are good examples of rich fluvial and lacustrine coprolite localities. In this sense, the Early Cretaceous locality of Las Hoyas provides another exceptional example of a locality with a rich and extremely varied coprolite association (more than two thousand coprolites collected) from a lacustrine carbonate inland wetland ecosystem [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

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Exceptional coprolite association from the Early Cretaceous continental Lagerstätte of Las Hoyas, Cuenca, Spain

et al. 2018

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Coprolites are some of the most abundant fossils at the Las Hoyas site, a well-known Early Cretaceous Konservat-Lagerstätte located in Cuenca, central Spain. The coprolite association is described, introducing taphonomic features and sedimentological properties. This study is based on a subsample of 433 fossils selected from some 2000 specimens collected. The taphonomic features of the coprolites show that their integrity, absence of desiccation marks, and volume are congruent with faeces produced and deposited in an aquatic ecosystem, which were immediately covered by microbial mats. The highest abundance of coprolites, 96%, occurs in layers linked to the presence of microbial mats. Consequently, it is likely that coprolites are taphonomically autochthonous. A dichotomous key has been made in order to delimit the morphotypes. The key is based on (1) presence/absence of spiral marks, (2) morphology of coprolite ends, including polarity, expansion, and surface, and (3) overall shape, outline, diameter, and constrictions. Twelve different morphotypes are distinguished: spiral, circular, irregular, elongated, rosary, ellipsoidal, cylinder, bump-headed lace, fir-tree, cone, straight lace, and thin lace. The association is dominated by thin-lace and cylinder morphotypes. The sizes, inclusions, and EDX analyses indicate that the Las Hoyas coprolites correspond mostly to carnivorous producers with ichthyophagous diets, as crocodiles, urodelans and different kind of fishes.

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Section: Discussionsupporting

confidence: 73%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Exceptional coprolite association from the Early Cretaceous continental Lagerstätte of Las Hoyas, Cuenca, Spain

et al. 2018

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“…Depositional area of Unit 1 of site SZ-6 acted as a trap where the current velocity suddenly decreased and the poorly sorted sediments and different density (i.e. bones, plant and eggs) and sized (microfossils and partial ankylosaur skeletons) fossils were accumulated altogether at same time (Botfalvai et al 2015;Prondvai et al 2017;Segesdi et al 2017). The stacked series of Unit 1 (and thus most of the vertebrate fossils in the Iharkút assemblage) was deposited in a relatively short time (e.g.…”

Section: Locality and Geological Settingmentioning

confidence: 99%

“…This hypothesis is suggested on the basis of 2600 coprolites with high phosphorous content discovered from the same excavated area (ca. 600 m 2 ) of Unit 1 which are indicators of quasi in situ high scavenger activity around the accumulated carcasses (Segesdi et al 2017). Fishes play a significant role in carcass decomposition in freshwater habits (Subalusky et al 2017) and the presence of coiled and spiral coprolites in the Iharkút material (Segesdi et al 2017) probably also indicate that the fishes (such as Atractosteus) could have played a significant role during the decomposition of these ankylosaur carcasses.…”

Section: Genesis Of the Ankylosaur Skeleton Concentrationmentioning

confidence: 99%

The dirty dozen: taxonomical and taphonomical overview of a unique ankylosaurian (Dinosauria: Ornithischia) assemblage from the Santonian Iharkút locality, Hungary

Ősi

Botfalvai

Albert

et al. 2019

Palaeobio Palaeoenv

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Ankylosaurian fossils are usually standard elements of Cretaceous continental vertebrate localities, however bone-yielding horizons including more than one individual are extremely rare. Here we present a unique assemblage of 12 partial articulated or associated ankylosaurian skeletons and thousands of isolated bones and teeth discovered from the Santonian Iharkút vertebrate locality, western Hungary. Collected from an area of 600 m 2 and from a single bone bed, this material is one of the richest ankylosaurian accumulation worldwide. The 12 skeletons are not monospecific but, mostly based on the pelvic armor composition, six of them are from Hungarosaurus, two are referred to Struthiosaurus and four can be assigned to Nodosauridae indet. Sedimentological and taphonomical examinations revealed a single mass mortality event as the cause of the death and accumulation of these quadruped animals that are described here. The ankylosaur assemblage from Iharkút suggests at least a temporarily gregarious behavior of these animals and also shows that Hungarosaurus and Struthiosaurus might lived in the same moist habitat or at least preferred relatively close environments.

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Bone‐bearing coprolites from the Upper Triassic of India: ichnotaxonomy, probable producers and predator–prey relationships

Rakshit

Ray

2021

Papers in Palaeontology

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Multiple spiral and non‐spiral cylindrical coprolites with profuse bone inclusions were recovered from a metoposaurid‐dominated bonebed in the Upper Triassic Tiki Formation of India. The spiral coprolites are assigned to two new ichnotaxa based on amphipolar and heteropolar micropolar coilings. The non‐spiral coprolites are internally devoid of any spiral structure, mostly cylindrical, except for a few, which are ellipsoidal. All of these coprolites contain randomly scattered inclusions of partly digested and undigested skeletal fragments. Based on external and internal morphology, and the type of inclusions, the probable producers of these coprolites are considered to have been carnivorous and/or piscivorous, and included different types of chondrichthyans, dipnoans and actinopterygians, as well as various semiaquatic and terrestrial tetrapods. A web‐like interconnectedness is evident, which highlights dynamic and highly diverse animal communities inhabiting the terrestrial, semiaquatic and aquatic realms and dissolution of the inter‐realm boundaries in the Upper Triassic Tiki palaeoecosystem.

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First report on vertebrate coprolites from the Upper Cretaceous (Santonian) Csehbánya Formation of Iharkút, Hungary

Cited by 17 publications

References 45 publications

Exceptional coprolite association from the Early Cretaceous continental Lagerstätte of Las Hoyas, Cuenca, Spain

Exceptional coprolite association from the Early Cretaceous continental Lagerstätte of Las Hoyas, Cuenca, Spain

The dirty dozen: taxonomical and taphonomical overview of a unique ankylosaurian (Dinosauria: Ornithischia) assemblage from the Santonian Iharkút locality, Hungary

Bone‐bearing coprolites from the Upper Triassic of India: ichnotaxonomy, probable producers and predator–prey relationships

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