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New Fossil Scorpion from the Chiapas Amber Lagerstätte.

Riquelme F, Villegas-Guzmán G, González-Santillán E, Córdova-Tabares V, Francke OF, Piedra-Jiménez D, Estrada-Ruiz E, Luna-Castro B - PLoS ONE (2015)

Bottom Line: The new species is diagnosed as having putative characters that largely correspond with the genus Tityus Koch, 1836 (Scorpiones, Buthidae).Accordingly, it is now referred to as Tityus apozonalli sp. nov.Its close relationships with extant Neotropic Tityus-like subclades such as 'Tityus clathratus' and the subgenus Tityus (Archaeotityus) are also discussed.

View Article: PubMed Central - PubMed

Affiliation: Escuela de Estudios Superiores de Jicarero, Universidad Autónoma del Estado de Morelos, Jicarero, CP. 62909, Morelos, Mexico.

ABSTRACT
A new species of scorpion is described based on a rare entire adult male preserved in a cloudy amber from Miocene rocks in the Chiapas Highlands, south of Mexico. The amber-bearing beds in Chiapas constitute a Conservation Lagerstätte with outstanding organic preservation inside plant resin. The new species is diagnosed as having putative characters that largely correspond with the genus Tityus Koch, 1836 (Scorpiones, Buthidae). Accordingly, it is now referred to as Tityus apozonalli sp. nov. Its previously unclear phylogenetic relationship among fossil taxa of the family Buthidae from both Dominican and Mexican amber is also examined herein. Preliminarily results indicate a basal condition of T. apozonalli regarding to Tityus geratus Santiago-Blay and Poinar, 1988, Tityus (Brazilotityus) hartkorni Lourenço, 2009, and Tityus azari Lourenço, 2013 from Dominican amber, as was Tityus (Brazilotityus) knodeli Lourenço, 2014 from Mexican amber. Its close relationships with extant Neotropic Tityus-like subclades such as 'Tityus clathratus' and the subgenus Tityus (Archaeotityus) are also discussed. This new taxon adds to the knowledge of New World scorpions from the Miocene that are rarely found trapped in amber.

No MeSH data available.


Related in: MedlinePlus

Tityus apozonalli sp. nov.Schematic reconstruction of left pedipalp in dorsal view, which shows discernible carinae and the pedipalp movable finger dentition.
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pone.0133396.g004: Tityus apozonalli sp. nov.Schematic reconstruction of left pedipalp in dorsal view, which shows discernible carinae and the pedipalp movable finger dentition.

Mentions: Pedipalps: Total length 8.9 mm; pedipalp segments size (length / width) and (ratio): femur = (2.16/ 0.88), (r = 2.45); patella = (2.42/ 1.04), (r = 2.32); chela = (3.65 / 0.91), (r = 4.01); movable finger length = (2.55); fixed finger length = = (2.60). Femur + patella reddish-brown and sparsely infuscated. Fingers + manus pale yellowish, manus tinged with brownish striations, finger somewhat translucent. Carinae in Femur: dorsal prolateral, dorsal retrolateral, ventral prolateral and prolateral submedian with scattered irregular subserrate granules; other carinae undiscernible. On Patella: dorsal prolateral, dorsal retrolateral, ventral retrolateral, and ventral prolateral carinae finely crenulated; dorsal median costated to finely crenulated; prolateral median and prolateral ventrosubmedian finely crenulated; other carinae undiscernible. On Chela: Dorsal median carina costate; other carinae undiscernible. Pedipalp chela moderate. Fingers lacking scalloping, oblique. Pedipalp fixed finger dentition: PD = 9 and RD = 10, MD = 9 rows of denticles; PD and RD slightly imbricated, dislocated from median rows. Movable finger PD = 11, RD = 12, MD = 10 rows of medial denticles, distal row of one to three denticles missing. Trichobothrial pattern Type A-α, probably orthobothriotaxic, several trichobothria hardly distinguishable due to resin fossilization (Figs 3B, 3C and 4).


New Fossil Scorpion from the Chiapas Amber Lagerstätte.

Riquelme F, Villegas-Guzmán G, González-Santillán E, Córdova-Tabares V, Francke OF, Piedra-Jiménez D, Estrada-Ruiz E, Luna-Castro B - PLoS ONE (2015)

Tityus apozonalli sp. nov.Schematic reconstruction of left pedipalp in dorsal view, which shows discernible carinae and the pedipalp movable finger dentition.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4526686&req=5

pone.0133396.g004: Tityus apozonalli sp. nov.Schematic reconstruction of left pedipalp in dorsal view, which shows discernible carinae and the pedipalp movable finger dentition.
Mentions: Pedipalps: Total length 8.9 mm; pedipalp segments size (length / width) and (ratio): femur = (2.16/ 0.88), (r = 2.45); patella = (2.42/ 1.04), (r = 2.32); chela = (3.65 / 0.91), (r = 4.01); movable finger length = (2.55); fixed finger length = = (2.60). Femur + patella reddish-brown and sparsely infuscated. Fingers + manus pale yellowish, manus tinged with brownish striations, finger somewhat translucent. Carinae in Femur: dorsal prolateral, dorsal retrolateral, ventral prolateral and prolateral submedian with scattered irregular subserrate granules; other carinae undiscernible. On Patella: dorsal prolateral, dorsal retrolateral, ventral retrolateral, and ventral prolateral carinae finely crenulated; dorsal median costated to finely crenulated; prolateral median and prolateral ventrosubmedian finely crenulated; other carinae undiscernible. On Chela: Dorsal median carina costate; other carinae undiscernible. Pedipalp chela moderate. Fingers lacking scalloping, oblique. Pedipalp fixed finger dentition: PD = 9 and RD = 10, MD = 9 rows of denticles; PD and RD slightly imbricated, dislocated from median rows. Movable finger PD = 11, RD = 12, MD = 10 rows of medial denticles, distal row of one to three denticles missing. Trichobothrial pattern Type A-α, probably orthobothriotaxic, several trichobothria hardly distinguishable due to resin fossilization (Figs 3B, 3C and 4).

Bottom Line: The new species is diagnosed as having putative characters that largely correspond with the genus Tityus Koch, 1836 (Scorpiones, Buthidae).Accordingly, it is now referred to as Tityus apozonalli sp. nov.Its close relationships with extant Neotropic Tityus-like subclades such as 'Tityus clathratus' and the subgenus Tityus (Archaeotityus) are also discussed.

View Article: PubMed Central - PubMed

Affiliation: Escuela de Estudios Superiores de Jicarero, Universidad Autónoma del Estado de Morelos, Jicarero, CP. 62909, Morelos, Mexico.

ABSTRACT
A new species of scorpion is described based on a rare entire adult male preserved in a cloudy amber from Miocene rocks in the Chiapas Highlands, south of Mexico. The amber-bearing beds in Chiapas constitute a Conservation Lagerstätte with outstanding organic preservation inside plant resin. The new species is diagnosed as having putative characters that largely correspond with the genus Tityus Koch, 1836 (Scorpiones, Buthidae). Accordingly, it is now referred to as Tityus apozonalli sp. nov. Its previously unclear phylogenetic relationship among fossil taxa of the family Buthidae from both Dominican and Mexican amber is also examined herein. Preliminarily results indicate a basal condition of T. apozonalli regarding to Tityus geratus Santiago-Blay and Poinar, 1988, Tityus (Brazilotityus) hartkorni Lourenço, 2009, and Tityus azari Lourenço, 2013 from Dominican amber, as was Tityus (Brazilotityus) knodeli Lourenço, 2014 from Mexican amber. Its close relationships with extant Neotropic Tityus-like subclades such as 'Tityus clathratus' and the subgenus Tityus (Archaeotityus) are also discussed. This new taxon adds to the knowledge of New World scorpions from the Miocene that are rarely found trapped in amber.

No MeSH data available.


Related in: MedlinePlus