Dominican amber

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Worker termite in Dominican amber Ant in amber1.jpg
Worker termite in Dominican amber

Dominican amber is amber from the Dominican Republic derived from resin of the extinct tree Hymenaea protera .

Contents

Dominican amber differentiates itself from Baltic amber by being nearly always transparent, and it has a higher number of fossil inclusions. This has enabled the detailed reconstruction of the ecosystem of a long-vanished tropical forest. [1]

Age

The age of the amber has been controverisal. A study in the early 1990s returned a date up to 40 million years old. [2] However, other authors have suggested a date in the Miocene, around 20-15 million years old, based on marine microfossils found in the sediment the amber is contained in. [3]

Mining sites

There are three main sites in the Dominican Republic where amber is found: La Cordillera Septentrional, in the north, and Bayaguana and Sabana de la Mar, in the east. In the northern area, the amber-bearing unit is formed of clastic rocks, washed down with sandstone fragments and other sediments that accumulated in a deltaic environment, even in water of some depth. [4] [5] [6]

In the eastern area, the amber is found in a sediment formation of organic-rich laminated sand, sandy clay, intercalated lignite, and as well as some solvated beds of gravel and calcarenite. [7]

Both areas seem to have been part of the same sedimentary basin but were later disrupted by movements along major faults. [8]

Mining

Dominican amber, especially Dominican blue amber, is mined through bell pitting, which is extremely dangerous. The bell pit is basically a foxhole dug with whatever tools are available. Machetes do the start, some shovels, picks and hammers may participate eventually. The pit itself goes as deep or safe as possible, sometimes vertical, sometimes horizontal, but never level. It snakes into hill sides, drops away, joins up with others, goes straight up and pops out elsewhere. 'Foxhole' applies indeed: rarely are the pits large enough to stand in, and then only at the entrance. Miners crawl around on their knees using short-handled picks, shovels and machetes.

There are little to no safety measures. A pillar or so may hold back the ceiling from time to time but only if the area has previously collapsed. Candles are the only source of light. Humidity inside the mines is at 100%. Since the holes are situated high on mountainsides and deep inside said mountains, the temperature is cool and bearable, but after several hours the air becomes stale. During rain the mines are forced to close. The holes fill up quickly with water, and there is little point in pumping it out again (although sometimes this is done) because the unsecured walls may crumble. [9]

Variations

Dominican amber can be found in many colors, besides the obvious amber. Yellow and honey colored are fairly common. There is also red and green in smaller quantities and the rare blue amber (fluorescent). [10] [11]

The blue amber reportedly is found mostly in Palo Quemado mine south from La Cumbre. [12] [13]

The Museo del Ambar Dominicano, in Puerto Plata, as well as the Amber World Museum in Santo Domingo have collections of amber specimens.

Paleobiology

Numerous organisms have been described from amber specimens including:

Anochetus intermedius, an ant Anochetus intermedius BMNHP-II33 01.jpg
Anochetus intermedius , an ant
Odontomachus spinifer Odontomachus spinifer SMNSDO2215 profile.jpg
Odontomachus spinifer

Protozoans

Flora

Funga

Fauna

See also

Related Research Articles

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<i>Paleoleishmania</i> Extinct genus of parasitic flagellate protist in the Kinetoplastea class

Paleoleishmania is an extinct genus of kinetoplastids, a monophyletic group of unicellular parasitic flagellate protozoa. At present it is placed in the family Trypanosomatidae. The genus contains two species, Paleoleishmania neotropicum and the type species Paleoleishmania proterus.

<i>Acanthostichus hispaniolicus</i> Extinct species of ant

Acanthostichus hispaniolicus is an extinct species of ant in the subfamily Dorylinae known from a group of possibly Miocene fossils found on the Caribbean island of Hispaniola. A. hispaniolicus is the first species of the ant genus Acanthostichus to have been described from fossils found in Dominican amber, and is the only species of Acanthostichus found in the West Indies.

Acanthognathus poinari is an extinct species of ant in the subfamily Myrmicinae known from a single possibly Miocene fossil found on Hispaniola. A. poinari is the first species of the ant genus Acanthognathus to have been described from fossils found in Dominican amber and is one of several species of Acanthognathus found in the Greater Antillas.

<i>Anochetus ambiguus</i> Extinct species of ant

Anochetus ambiguus is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. A. ambiguus is one of eight species in the ant genus Anochetus to have been described from fossils found in Dominican amber and is one of a number of Anochetus species found in the Greater Antillies.

Anochetus brevidentatus is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. A. ambiguus is one of eight species in the ant genus Anochetus to have been described from fossils found in Dominican amber and is one of a number of Anochetus species found in the Greater Antillies.

<i>Anochetus conisquamis</i> Extinct species of ant

Anochetus conisquamis is an extinct species of ant in the subfamily Ponerinae known from one possibly Miocene fossil found on Hispaniola. A. conisquamis is one of eight species in the ant genus Anochetus to have been described from fossils found in Dominican amber and is one of a number of Anochetus species found in the Greater Antilles.

<i>Anochetus corayi</i> Extinct species of ant

Anochetus corayi is an extinct species of ant in the subfamily Ponerinae known from one possibly Miocene fossil found on Hispaniola. A. corayi is one of eight species in the ant genus Anochetus to have been described from fossils found in Dominican amber and is one of a number of Anochetus species found in the Greater Antillies.

<i>Anochetus dubius</i> Extinct species of ant

Anochetus dubius is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. A. dubius is one of eight species in the ant genus Anochetus to have been described from fossils found in Dominican amber and is one of a number of Anochetus species found in the Greater Antillies.

<i>Anochetus exstinctus</i> Extinct species of ant

Anochetus exstinctus is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. A. exstinctus is one of eight species in the ant genus Anochetus to have been described from fossils found in Dominican amber and is one of a number of Anochetus species found in the Greater Antillies.

<i>Anochetus intermedius</i> Extinct species of ant

Anochetus intermedius is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. A. intermedius is one of eight species in the ant genus Anochetus to have been described from fossils found in Dominican amber and is one of a number of Anochetus species found in the Greater Antilles.

<i>Anochetus lucidus</i> Extinct species of ant

Anochetus lucidus is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. A. lucidus is one of eight species in the ant genus Anochetus to have been described from fossils found in Dominican amber and is one of a number of Anochetus species found in the Greater Antillies.

Pseudarmadillo cristatus is an extinct species of isopod (woodlouse) in the family Delatorreiidae known from a series of possibly Miocene fossils found on Hispaniola. At the time of description P. cristatus was one of two Pseudarmadillo species known from the fossil record and one of only two from Hispaniola.

<i>Aphaenogaster amphioceanica</i> Extinct species of ant

Aphaenogaster amphioceanica is an extinct species of ant in the subfamily Myrmicinae known from a single possibly Miocene fossil found in amber on Hispaniola. At the time of description A. amphioceanica was one of two Aphaenogaster species known from the Caribbean islands.

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The La Toca Formation is a geologic formation in the northern and eastern part of the Dominican Republic. The formation, predominantly an alternating sequence of marls and turbiditic sandstones, breccias and conglomerates, is renowned for the preservation of insects and other arthropods in amber, known as Dominican amber. The formation is dated to the Burdigalian to Langhian stages of the Miocene period.

<i>Azteca alpha</i> Species of ant

Azteca alpha is an extinct species of ant in the subfamily Dolichoderinae known from possibly Miocene fossils found on Hispaniola. A. alpha is one of only two species in the genus Azteca to have been described from fossils, both found in Dominican amber. It is the host for a fossil nematode, and has been preserved with scale insects.

Azteca eumeces is an extinct species of ant in the subfamily Dolichoderinae known from possibly Miocene fossils found on Hispaniola. A. eumeces is one of only two species in the ant genus Azteca to have been described from fossils, both found in Dominican amber.

<i>Odontomachus spinifer</i> Extinct species of ant

Odontomachus spinifer is an extinct species of ant in the subfamily Ponerinae known from one possibly Miocene fossil found on Hispaniola. O. spinifer is one of two species in the ant genus Odontomachus to have been described from fossils found in Dominican amber and is one of a number of Odontomachus species found in the Greater Antilles.

<i>Odontomachus pseudobauri</i> Extinct species of ant

Odontomachus pseudobauri is an extinct species of ant in the subfamily Ponerinae known from one possibly Miocene fossil found on Hispaniola. O. pseudobauri is one of two species in the ant genus Odontomachus to have been described from fossils found in Dominican amber and is one of a number of Odontomachus species found in the Greater Antilles.

References

  1. ↑ George Poinar, Jr. and Roberta Poinar, 1999. The Amber Forest: A Reconstruction of a Vanished World, (Princeton University Press) ISBN   0-691-02888-5
  2. ↑ Browne, Malcolm W. (1992-09-25). "40-Million-Year-Old Extinct Bee Yields Oldest Genetic Material". New York Times. Retrieved 2008-04-15.
  3. ↑ ITURRALDE-VINENT, MANUEL A.; MACPHEE, ROSS D.E. (2019-06-24). "Remarks on the age of Dominican amber". Palaeoentomology. 2 (3): 236–240. doi:10.11646/palaeoentomology.2.3.7. ISSN   2624-2834.
  4. ↑ Leif Brost and Ake Dahlstrom. The Amber Book, Geoscience Press, Inc., Tucson , AZ, 1996 ISBN   0-945005-23-7
  5. ↑ Wilfred Wichard und Wolfgang Weitschat: Im Bernsteinwald. - Gerstenberg Verlag, Hildesheim, 2004, ISBN   3-8067-2551-9
  6. ↑ Baroni Urbani, C. & Saunders, J.B. (1980): The fauna of the Dominican Republic amber: the present status of knowledge. – Memorias, 9a geologica del Caribe, 1: 213-223; Santo Domingo. (Published 1983).
  7. ↑ Schlee, D. (1984): Besonderheiten des Dominikanischen Bernsteins. – Stuttgarter Beitr. Naturk., C, 18: 63-71; Stuttgart.
  8. ↑ Manuel A. Iturralde-Vennet 2001. Geology of the Amber-Bearing Deposits of the Greater Antilles. Caribbean Journal of Science, Vol. 00, No. 0, 141-167, 2001
  9. ↑ Martínez, R. & Schlee, D. (1984): Die Dominikanischen Bernsteinminen der Nordkordillera, speziell auch aus der Sicht der Werkstaetten. – Stuttgarter Beitr. Naturk., C, 18: 79-84; Stuttgart.
  10. ↑ Schlee, D. (1980): Bernstein-Raritaeten (Farben, Strukturen, Fossilen, Handwerk). – 88 S. (mit 55 Farbtafeln); Staatl. Museum für Naturkunde Stuttgart.
  11. ↑ L. Linati and D. Sacchi, V. Bellani, E. Giulotto (2005). "The origin of the blue fluorescence in Dominican amber". J. Appl. Phys. 97 (1): 016101–016101–2. Bibcode:2005JAP....97a6101B. doi:10.1063/1.1829395.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  12. ↑ "Blue Amber - EPOD - a service of USRA". epod.usra.edu. Retrieved 2019-09-18.
  13. ↑ "AMBER | BLUE STONE International" . Retrieved 2019-09-18.
  14. ↑ Poinar, G. (2014). "Evolutionary history of terrestrial pathogens and endoparasites as revealed in fossils and subfossils". Advances in Biology. 2014: 1–29. doi: 10.1155/2014/181353 .
  15. ↑ Poinar, G. (2005). "Triatoma dominicana sp. n. (Hemiptera: Reduviidae: Triatominae), and Trypanosoma antiquus sp. n. (Stercoraria: Trypanosomatidae), the First Fossil Evidence of a Triatomine-Trypanosomatid Vector Association". Vector-Borne and Zoonotic Diseases. 5 (1): 72–81. doi:10.1089/vbz.2005.5.72. PMID   15815152.
  16. ↑ Ancient Termite Pollinator of Milkweed Flowers in Dominican Amber Poinar GO Jr. American Entomologist 2017 63:52-59
  17. ↑ Poinar, G. O.; Peterson, E. B.; Platt, J. L. (2000). "Fossil Parmelia in new world amber". The Lichenologist. 32 (3): 263–269. doi:10.1006/lich.1999.0258. S2CID   86227172.
  18. ↑ De Andrade, M. L. (1998). "First description of fossil Acanthostichus from Dominican amber (Hymenoptera: Formicidae)". Mitteilungen der Schweizerischen Entomologischen Gesellschaft. 71: 269–274.
  19. 1 2 3 4 5 6 7 8 De Andrade, M. L. (1994). "Fossil Odontomachiti Ants from the Dominican Republic (Amber Collection Stuttgart: Hymenoptera, Formicidae. VII: Odontomachiti)". Stuttgarter Beiträge zur Naturkunde. Serie B (Geologie und Paläontologie). 199: 1–28.
  20. ↑ MacKay, W. P. (1991). "Anochetus brevidentatus, new species, a second fossil Odontomachiti ant (Hymenoptera: Formicidae)". Journal of the New York Entomological Society. 99: 138–140.
  21. ↑ Baroni Urbani, C. (1980). "Anochetus corayi n. sp., the first fossil Odontomachiti ant. (Amber Collection Stuttgart: Hymenoptera, Formicidae. II: Odontomachiti)". Stuttgarter Beiträge zur Naturkunde. Serie B (Geologie und Paläontologie). 55: 1–6.
  22. 1 2 Schultz, T.R. (2007). "The fungus-growing ant genus Apterostigma in Dominican amber". Memoirs of the American Entomological Institute. 80: 425–436.
  23. 1 2 Wilson, E.O. (1985). "Ants of the Dominican amber (Hymenoptera: Formicidae). 3. The subfamily Dolichoderinae". Psyche: A Journal of Entomology. 92: 17–37. doi: 10.1155/1985/20969 .
  24. ↑ "Cephalotes jansei Vierbergen and Scheven 1995 (ant)". Fossil works. Retrieved 22 January 2019.
  25. 1 2 Engel, MS; Grimaldi, DA (2007). "The neuropterid fauna of Dominican and Mexican amber (Neuropterida, Megaloptera, Neuroptera)". American Museum Novitates (3587): 1–58. doi:10.1206/0003-0082(2007)3587[1:TNFODA]2.0.CO;2. hdl:2246/5880. S2CID   49393365.
  26. ↑ Johnson, M.S.; et al. (2001). "Acropyga and Azteca Ants (Hymenoptera: Formicidae) with Scale Insects (Sternorrhyncha: Coccoidea): 20 Million Years of Intimate Symbiosis". American Museum Novitates (3335): 1–18. doi:10.1206/0003-0082(2001)335<0001:AAAAHF>2.0.CO;2. S2CID   55067700.
  27. ↑ Poinar, G.O. (2011). "The Evolutionary History of Nematodes: As Revealed in Stone, Amber and Mummies". Nematology Monographs and Perspectives Pages. 9: 91–93, 239–240, 324–325.
  28. ↑ Poinar, G. (2008). "Lutzomyia adiketis sp. n. (Diptera: Phlebotomidae), a vector of Paleoleishmania neotropicum sp. n. (Kinetoplastida: Trypanosomatidae) in Dominican amber". Parasites & Vectors. 1 (1): 22. doi: 10.1186/1756-3305-1-22 . PMC   2491605 . PMID   18627624.
  29. ↑ Laybourne, R.C.; Deedrick, D.W.; Hueber, F.M. (1994). "Feather in amber is earliest New World fossil of Picidae". Wilson Bulletin. 106 (1): 18–25.
  30. ↑ Mapalo, Marc A.; Robin, Ninon; Boudinot, Brendon E.; Ortega-Hernández, Javier; Barden, Phillip (2021). "A tardigrade in Dominican amber". Proc. R. Soc. B. 288 (20211760): 20211760. doi:10.1098/rspb.2021.1760. PMC   8493197 . PMID   34610770.
  31. ↑ Daza, Juan Diego; Bauer, A. M.; Wagner, P.; Böhme, W. (Jan 1, 2012). "A reconsideration of Sphaerodactylus dommeli Böhme, 1984 (Squamata: Gekkota: Sphaerodactylidae), a Miocene lizard in amber". Journal of Zoological Systematics and Evolutionary Research. 51: 55–63. doi: 10.1111/jzs.12001 . ISSN   1439-0469. Subsequent to the acceptance of this paper, we obtained high resolution X-ray computed tomography imagery for the paratype of Sphaerodactylus dommeli that confirms that it is correctly allocated to genus. Details of its osteology will be reported elsewhere.
  32. ↑ Woodruff, R.E. (2009). "A new fossil species of stag beetle from Dominican Republic amber, with Australasian connections (Coleoptera: Lucanidae)". Insecta Mundi. 0098: 1–10.
  33. ↑ Szwedo, J.; Stroiński, A. (2001). "Tainosia quisqueyae gen. and sp. nov. from the Oligocene/Miocene Dominican amber (Hemiptera: Fulgoroidea: Nogodinidae)" (PDF). Genus. 12 (1): 29–34. Archived from the original (PDF) on 2011-07-19. Retrieved 2011-04-17.
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