Trilobites and inarticulate brachiopods from the Devonian Floresta Formation of Colombia: a review

Morzadec, Pierre; Mergl, Michal; Villarroel, Carlos; Janvier, P.; Rachebœuf, Patrick R.

doi:10.3140/bull.geosci.1515

Cited by 18 publications

(36 citation statements)

References 16 publications

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“…is from a horizon deposited during the suggested peak of the Lau Event corresponding to the episode of cooling of the marine environment. It is worth noting that most occurrences of the South American Schizobolus species came from the presumed cold Malvinokaffric Realm (Boucot 1975, Morzadec et al 2015. Description.…”

Section: Gen Et Sp Indetmentioning

confidence: 99%

Response of organophosphatic brachiopods to the mid-Ludfordian (late Silurian) carbon isotope excursion and associated extinction events in the Prague Basin (Czech Republic)

Mergl¹,

Frýda²,

Kubajko³

2018

Bull. Geosci.

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The Silurian Period represents a rather unusual period in Earth history. During the last two decades several distinct and rapid changes in the Silurian global carbon cycle have been recognized. These geochemical events were closely linked to major crises in marine ecosystems as well as to palaeoclimatic changes (see Munnecke et al. 2003, Loydell 2007, Calner 2008, for reviews). The largest magnitude perturbation in the Silurian global carbon cycle, named the mid-Ludfordian carbon isotope excursion (CIE) by Kaljo et al. (1997), has been considered also to represent the largest carbon isotope excursion throughout the whole Phanerozoic and the second largest in Earth history (Munnecke et al. 2003). On the other hand, the mid-Ludfordian CIE was preceded only by moderate faunal crises referred to as the Lau conodont Bioevent (Jeppsson 1987), Kozlowskii graptolite Bioevent (Urbanek 1993), and Pentamerid Bioevent (Talent et al. 1993). The mid-Ludfordian CIE and the associated faunal turnover have been documented from many palaeocontinents, in particular from different areas of Baltica (see Kaljo et al.

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Section: Gen Et Sp Indetmentioning

confidence: 99%

Response of organophosphatic brachiopods to the mid-Ludfordian (late Silurian) carbon isotope excursion and associated extinction events in the Prague Basin (Czech Republic)

Mergl¹,

Frýda²,

Kubajko³

2018

Bull. Geosci.

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“…In particular, the hypothesis of a sharp paleoecological barrier due to a high paleolatitudinal position has been regularly suggested for supporting Malvinokaffric endemism (Eldredge and Ormiston, 1979;Boucot et al, 2001;Morzadec et al, 2015).…”

Section: Remarks-the New Genus Is Included In the Superfamilymentioning

confidence: 97%

The new genusTalacastospongia: insights on the first record of a Devonian sponge from South America

Carrera

Rustán

2015

J. paleontol.

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The Lower Devonian (Lochkovian) hexactinellid sponge Talacastospongia minima new genus new species is reported from the lower beds of the Talacasto Formation in the Argentine Precordillera. It represents the first Devonian sponge from South America and the best record in the paleobiogeographic context of the Malvinokaffric Realm, otherwise virtually devoid of spiculate sponges. This discovery provides some tentative insights on the age and oldest record of the Family Pileolitidae. The paleogeographical context for this new finding shows a high latitude setting with a notable scarcity of hexactinellid sponges recorded to date in Devonian Malvinokaffric basins, and the absence of calcareous spiculate sponges (heteractinids) and hypercalcified sponges (stromatoporoids, sphinctozoans).

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“…Paleobiogeography.-Devonian records of Malvinokaffric endemic marine faunas correspond to southwestern Gondwanan basins (Boucot and Racheboeuf, 1993), including those from South America, excepting Venezuela and Colombia (Morzadec et al, 2015), Antarctica, Ghana, and South Africa (Fig. 6).…”

Section: Discussionmentioning

confidence: 99%

First report of Devonian bactritids (Cephalopoda) from South America: paleobiogeographic and biostratigraphic implications

Cichowolski

Rustán

2017

J. Paleontol.

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Abstract.-Devonian bactritids are described for the first time from South America. They come from siliciclastic rocks of the Talacasto Formation in the Precordillera Basin, west-central Argentina. The host strata span the Lochkovian-Emsian and contain other non-ammonoid cephalopods as well, thus refuting the alleged virtual absence of cephalopods in circumpolar Devonian basins from southwestern Gondwana (the Malvinokaffric Realm). We report Bactrites gracilis and Devonobactrites? sp., whose wide distribution contrasts with the endemic paleobiogeographic signature of some other taxonomic groups in these basins. Furthermore, new Lochkovian and Pragian records of Bactrites sp. provide new insights into the earliest bactritid records worldwide.

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Trilobites and inarticulate brachiopods from the Devonian Floresta Formation of Colombia: a review

Cited by 18 publications

References 16 publications

Response of organophosphatic brachiopods to the mid-Ludfordian (late Silurian) carbon isotope excursion and associated extinction events in the Prague Basin (Czech Republic)

Response of organophosphatic brachiopods to the mid-Ludfordian (late Silurian) carbon isotope excursion and associated extinction events in the Prague Basin (Czech Republic)

The new genusTalacastospongia: insights on the first record of a Devonian sponge from South America

First report of Devonian bactritids (Cephalopoda) from South America: paleobiogeographic and biostratigraphic implications

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