The fossil record of Glypturus (Decapoda: Axiidea: Callianassidae) revisited with additional observations and description of a new species

Hyžný, Matúš; Bahrami, Abdulrahman; Klompmaker, Adiël A.; Yazdi, Mehdi; Portell, Roger W.; Neumann, Christian

doi:10.1007/s13358-013-0060-4

Cited by 9 publications

(19 citation statements)

References 11 publications

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“…It has been argued that at least for some genera the morphology of the major propodus can be diagnostic on the genus level (Hyžný 2012; Hyžný & Müller 2012). In this respect, the revision of the ghost shrimp fossil record is ongoing (Hyžný & Müller 2010, 2012; Hyžný 2012; Hyžný & Hudáčková 2012; Hyžný & Karasawa 2012; Hyžný et al 2013). This paper is intended to be a part of the revision and its goal is to discuss in detail assignment of fossil taxa to Calliax based on the case study of Callianassa michelottii A.…”

Section: Introductionmentioning

confidence: 99%

Ghost shrimp Calliax de Saint Laurent, 1973 (Decapoda: Axiidea: Callianassidae) in the fossil record: systematics, palaeoecology and palaeobiogeography

Hyžný¹,

Gašparič²

2014

Zootaxa

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Ghost shrimps of the family Callianassidae are very common in the fossil record, but mostly as isolated cheliped elements only. The assignment to biologically defined genera, diagnosed on the basis of soft part morphology, is thus rather difficult. In this respect, proxy characters present on chelipeds that are the most durable ghost shrimp remains are needed to ascribe fossil material to extant genera. The genus Calliax de Saint Laurent, 1973 has been particularly obscure in this respect. Thorough comparison of extant members of the genus resulted in evaluation of characters present on chelipeds being taxonomically important on the genus level, specifically: 1) rectangular major P1 propodus with two ridges on the base of the fixed finger extending onto manus; 2) major P1 fingers relatively short; and 3) minor P1 chela with dactylus longer than fixed finger and possessing a wide gap between fingers. On this basis, Callianassa michelottii A. Milne Edwards, 1860, from the Oligocene and Miocene of Europe is herein reassigned to Calliax. Further re-examination of the ghost shrimp fossil record revealed that C. szobensis Müller, 1984, from the Middle Miocene of Hungary represents the same animal as C. michelottii and they are synomymised herein. The known geographic distribution of C. michelottii is expanded by the first confirmed occurrence of the species in Slovakia. All occurrences of C. michelottii known to date are reviewed and documented. The presence of Calliax michelottii comb. nov. may be considered an indicator of deeper marine settings. Based on the scarce fossil record known to date, Calliax has a Tethyan origin; it supposedly migrated westward to establish present day communities in the Caribbean sometime before the Middle Miocene.

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Section: Introductionmentioning

confidence: 99%

Ghost shrimp Calliax de Saint Laurent, 1973 (Decapoda: Axiidea: Callianassidae) in the fossil record: systematics, palaeoecology and palaeobiogeography

Hyžný¹,

Gašparič²

2014

Zootaxa

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“…Comments. Propodus serrated ventral margin and traces of spines on dorsal margin, suggest affinities of the new specimens with Glypturus toulai , which is reported from the Lower to Upper Miocene of Panama (Culebra and Gatun formations, respectively) Todd and Collins, 2005;Hyžný et al, 2013;Klompmaker et al, 2016).…”

Section: Methodsmentioning

confidence: 51%

Neogene decapod crustaceans from the Caribbean of Colombia

Bermúdez¹,

Vega-Sandoval²,

Vega³

2017

BSGM

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“…Examined specimens of Glypturus toulai (Rathbun, 1919) originated from the middle–upper Miocene (Serravallian–Tortonian) Gatun Formation of Panama (see Hendy 2013 for detailed stratigraphy and associated mollusc fauna), the formation from which they were first described. This species has been reported from the lower (Hyžný et al . 2013) and middle (Todd & Collins 2005) Gatun Formation.…”

Section: Geological Settingmentioning

confidence: 72%

“…11). Furthermore, Glypturus has a fairly extensive fossil record that commences in the Eocene (Hyžný & Müller 2012; Hyžný et al . 2013).…”

Section: Introductionmentioning

confidence: 99%

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Growth, inter- and intraspecific variation, palaeobiogeography, taphonomy and systematics of the Cenozoic ghost shrimpGlypturus

Klompmaker

Hyžný

Portell

et al. 2015

Journal of Systematic Palaeontology

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Studies in systematic palaeontology are greatly aided when numerous, well-preserved specimens are available so that quantitative methods can be used to substantiate qualitative observations. This is often not the case for fossil decapod crustaceans due to their relatively low preservation potential. Here, we examined primarily two large collections of the well-preserved ghost shrimp from the Holo-Pleistocene of Panama and the late Miocene of Florida. Using descriptive, bivariate, multivariate and geometric morphometric methods, two new species are described based on appendage material: sp. nov. and sp. nov. New characters are identified, and size-related and intraspecific variation are assessed for these taxa and modern. Taxonomic placement of single specimens from other localities was confirmed by multivariate methods. Furthermore, is revised, especially with regard to Western Atlantic species that inhabited both carbonate and siliciclastic environments., , and are referred to as sp. until more material is available to determine the validity of these species. Diversity within may thus be underestimated, thereby also impacting the assessment of phylogenetic relationships. Minor propodi appear under-represented relative to major propodi, suggesting a taphonomic bias. Single specimens of interest include a specimen of sp. nov. exhibiting a peculiar swelling in the fixed finger and another showing damage on the propodal upper margin, suggesting failed predation or antagonistic behaviour. is first found in the Oligocene in the Western Atlantic and may have expanded its palaeobiogeographical range since the Miocene. The genus was still present on the Pacific side of the Isthmus of Panama in the Holo-Pleistocene, but is only known from the Western Atlantic today, suggesting a relatively recent extinction on the Pacific side.

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The fossil record of Glypturus (Decapoda: Axiidea: Callianassidae) revisited with additional observations and description of a new species

Cited by 9 publications

References 11 publications

Ghost shrimp Calliax de Saint Laurent, 1973 (Decapoda: Axiidea: Callianassidae) in the fossil record: systematics, palaeoecology and palaeobiogeography

Ghost shrimp Calliax de Saint Laurent, 1973 (Decapoda: Axiidea: Callianassidae) in the fossil record: systematics, palaeoecology and palaeobiogeography

Neogene decapod crustaceans from the Caribbean of Colombia

Growth, inter- and intraspecific variation, palaeobiogeography, taphonomy and systematics of the Cenozoic ghost shrimpGlypturus

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