Wikipedia

Casamayoran

The Casamayoran (Spanish: Casamayorense) age is a period of geologic time (50.0–48.0 Ma) within the Early Eocene epoch of the Paleogene, used more specifically within the South American land mammal age (SALMA) classification. It follows the Itaboraian and precedes the Mustersan age.[1]

Several astrapotherian mammals are known from this period, such as Antarctodon and Albertogaudrya from Antarctica and Argentina, respectively. Albertogaudrya and Scaglia were the size of a sheep or a small tapir, hence among the larger mammals in South America at this time.[2]

Etymology

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This age is named after the Casamayor Formation of the Golfo San Jorge Basin.

Formations

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Locations of Casamayoran formations
Formation
bold is type 		Country Basin Notes
Casamayor Formation   Argentina Golfo San Jorge Basin
[3]
Abanico Formation   Chile Abanico Basin
[4][5]
Bogotá Formation   Colombia Altiplano Cundiboyacense
[6]
Cayara Formation   Bolivia Cochabamba Department
[7]
Chota Formation   Peru Bagua Basin
[8][9]
Los Cuervos Formation   Colombia Cesar-Ranchería Basin
[10][11]
Fonseca Formation   Brazil Fonseca Basin
[12]
Huitrera Formation   Argentina Neuquén Basin
[13]
Laguna del Hunco Formation   Argentina Cañadón Asfalto Basin
[14]
Lumbrera Formation   Argentina Salta Basin
[15]
Maíz Gordo Formation   Argentina Salta Basin
[16]
Quebrada de los Colorados Formation   Argentina Salta Basin
[17][18]
Sarmiento Formation   Argentina Golfo San Jorge Basin
[19][20]

Fossils

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Group Fossils Formation Notes
Mammals Florentinoameghinia mystica, Notopithecus adapinus, Notostylops murinus, Thomashuxleya sp., Trigonostylops sp., cf. Pleurostylodon sp. Casamayor
[21][22]
Antepithecus brachystephanus Abanico
[23]
cf. Camargomendesia indet. Cayara
[7][24]
Bonapartherium hinakusijum, Boreastylops lumbrerensis, Callistoe vincei, Campanorco inauguralis, Colbertia lumbrerense, Coquenia bondi, Dolichostylodon saltensis, Griphotherion peiranoi, Indalecia grandensis, Lumbreratherium oblitum, Pampahippus arenalesi, P. secundus, Pampatemnus deuteros, P. infernalis, Patene simpsoni, Prepidolops didelphoides, P. molinai, ?Albertogaudrya carahuasensis, Borhyaenoidea sp. Lumbrera
[25][26]
[27][28]
[29][30]
[31][32]
[33][34]
[35][36]
Coloradolops cardonensis, Pampahippus powelli, Prostegotherium sp., cf. Utaetus sp., Dasypodidae indet., Leontiniidae indet., Toxodontia indet. Quebrada de
los Colorados
[37]
[38][39]
[40]
Acropithecus rigidus, Adiantoides magnus, Amphidolops serrula,Anisolambda amel, A. fissidens, Asmithwoodwardia subtrigona, Coona gutierrezi, C. pattersoni, Didolodus minor, Edvardotrouessartia sola, Florentinoameghinia mystica, Henricosbornia lophodonta, Ideodelphys microscopicus, Isotemnus primitivus, Josepholeidya adunca, Maxschlosseria consumata, M. minuta, Notopithecus adapinus, Notostylops appressus, N. pendens, Pleurostylodon similis, Polydolops serra, P. thomasi, Ricardolydekkeria cf. praerupta, Scaglia kraglievichorum, Sparnotheriodon epsilonoides, Thomashuxleya externa, Transpithecus obtentus, Trigonostylops ?wortmani, Homalostylops sp., Patene sp., Albertogaudrya indet., Didolodontidae indet., Prostegotherium indet., Victorlemoinea indet. Sarmiento
[41][42]
[43][44]
[45]
Birds Telmabates antiquus, T. howardae Sarmiento
[42]
Reptiles &
amphibians		 Loricata indet. Cayara
[24]
Pelomedusoides indet. Los Cuervos
[46]
Llankibatrachus truebae Huitrera
[47]
Shelania pascuali Laguna
del Hunco
[48]
Ayllusuchus fernandezi, Lumbrerasaurus scagliai, Sebecus sp., Sebecosuchia indet. Lumbrera
[29][49]
Crocodylia indet., Testudinata indet. Quebrada de
los Colorados
[38]
Chubutophis grandis, Gaffneylania auricularis, Niolamia argentina, Sebecus icaeorhinus, Waincophis australis Sarmiento
[50]
[41][42]
[51]
Fishes Erythrinidae indet., Serrasalmidae indet., Siluriformes indet. Cayara
[7][24]
cf. Carcharodon auriculatus, Carcharodon sp. Casamayor
[52]
Bachmannia chubutensis Laguna
del Hunco
[53]
Gymnogeophagus eocenicus, Lepidosiren paradoxa, Proterocara argentina Lumbrera
[54][55]
Insects Duartia pulchella, Fonsecablatta patricioi, Fonsecacarabus placidus, Fonsecacicada mineira, Fonsecadalia perfectus, F. propinquus, Fonsecahymen stigmata, Spargotermes costalimai, Auchenorrhyncha indet., Curculionidae indet. Fonseca
[56][57]
[58][59]
Catogenus punctatus, Inacayalestes aikunhuapi Huitrera
[47][60]
Molluscs Gibbula dalli, Jorgechlamys centralis, Ostrea ingens, Pecten proximus, Scalaria rugulosa, Turritella breantania Casamayor
[52]
Brachiopods Magellania lenticularis, Plicirhynchia plicigera, Tegulorhynchia squamosa, Terebratella dorsata, T. patagonica Casamayor
[52]
Echinoids Hypechinus patagonensis, Iheringiella patagonensis, Isechinus (Toxopneustes) praecursor, Linthia gaudryii, Platypygus (Cyrthoma) posthumus, Psammechinus iheringi, P. tournoueri, Schizaster ameghinoi Casamayor
[52]
Pollen Diporisporites elongatus, Gabonisporis vigourouxii, Jussitriporites menendezii, Liquidambarpollenites cf. brandonensis, Podocarpidites cf. marwickii, Retitriletes austroclavatidites, Smilacipites saltensis, Tricolpites lumbrerensis, T. cf. reticulatus, T. vulgaris, Verrustephanoporites simplex, Baculatisporites sp., Diporicellaesporites sp., Inapertisporites sp., Inaperturopollenites sp., Laevigatosporites sp., Nothopollenites sp., Pluricellaesporites sp., Rhoipites sp. Lumbrera
[61]

References

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  1. ^ Paleo Database: Casamayoran
  2. ^ Rose, 2006, p.236
  3. ^ Raigemborn et al., 2010, p.252
  4. ^ Godoy et al., 2012
  5. ^ Muñoz et al., 2006
  6. ^ Bayona et al., 2012, p.103
  7. ^ a b c Marshall & Sempere, 1991, p.633
  8. ^ Chacaltana et al., 2015, p.2
  9. ^ Castro Medina, 2010, p.53
  10. ^ Hernández, 2003, p.47
  11. ^ Cadena & Schweitzer, 2014, p.461
  12. ^ Mendes et al., 2015, p.28
  13. ^ Escostegui & Franchi, 2010, p.420
  14. ^ Wilf et al., 2005, p.634
  15. ^ Del Papa, 2006, p.314
  16. ^ Narváez, 2009, p.24
  17. ^ Del Papa et al., 2013, p.59
  18. ^ Payrola Bosio et al., 2010, p.312
  19. ^ Dozo et al., 2014, p.241
  20. ^ Acosta & Tambussi, 2005, p.128
  21. ^ Oficina del Diablo at Fossilworks.org
  22. ^ Casamayor Bed 1 at Fossilworks.org
  23. ^ Azufre at Fossilworks.org
  24. ^ a b c Wila Apacheta at Fossilworks.org
  25. ^ Herrera et al., 2017
  26. ^ Deraco & García López, 2015
  27. ^ Carahuasi at Fossilworks.org
  28. ^ Estancia Pampa Grande at Fossilworks.org
  29. ^ a b Estancia Pampa Grande East at Fossilworks.org
  30. ^ Estancia Pampa Grande Cachi River at Fossilworks.org
  31. ^ Estancia Pampa Grande Río Cachi at Fossilworks.org
  32. ^ El Simbolar at Fossilworks.org
  33. ^ Estrecho del Tonco at Fossilworks.org
  34. ^ Estancia Pampa Grande Toro Bordo at Fossilworks.org
  35. ^ Estancia Pampa Grande River Pablo at Fossilworks.org
  36. ^ Estancia Pampa Grande Pablo Bordo at Fossilworks.org
  37. ^ García López et al., 2017
  38. ^ a b Cerro Bayo at Fossilworks.org
  39. ^ Cerro Tin Tin at Fossilworks.org
  40. ^ Valle del Tonco at Fossilworks.org
  41. ^ a b Valle Hermoso at Fossilworks.org
  42. ^ a b c Cañadón Hondo Bird Clay at Fossilworks.org
  43. ^ Tapera de López 1 at Fossilworks.org
  44. ^ Cañadón Vaca at Fossilworks.org
  45. ^ Cañadón Vaca faunule 1 at Fossilworks.org
  46. ^ Calenturitas Coal Mine at Fossilworks.org
  47. ^ a b Pampa de Jones at Fossilworks.org
  48. ^ Cañadon del Hunco at Fossilworks.org
  49. ^ Mina Aguilar at Fossilworks.org
  50. ^ Sterli et al., 2015
  51. ^ Cerro Verde at Fossilworks.org
  52. ^ a b c d Casamayor Bed 3 at Fossilworks.org
  53. ^ Laguna del Hunco at Fossilworks.org
  54. ^ Alemania at Fossilworks.org
  55. ^ Casa Grande at Fossilworks.org
  56. ^ Fonseca village at Fossilworks.org
  57. ^ Fonseca village 2 at Fossilworks.org
  58. ^ Fonseca village 3 at Fossilworks.org
  59. ^ Mendes et al., 2015, p.32
  60. ^ Estancia Don Hipólito at Fossilworks.org
  61. ^ Fajas Verdes I & II at Fossilworks.org

Bibliography

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General
  • Rose, Kenneth David (2006), The beginning of the age of mammals, JHU Press, p. 236, ISBN 978-0-8018-8472-6, retrieved 2019-02-14
Casamayor Formation
Abanico Formation
Bogotá Formation
Cayara Formation
Chota Formation
Los Cuervos Formation
Fonseca Formation
Huitrera Formation
Laguna del Hunco Formation
Lumbrera Formation
Maíz Gordo Formation
Quebrada de Los Colorados Formation
Sarmiento Formation
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