Mao Formation

The Mao Formation is a geologic formation in the northwestern Dominican Republic. The reefal limestone and siltstone formation preserves bivalve, gastropod, echinoid and coral fossils dating back to the Pliocene period.[1]

Mao Formation
Stratigraphic range: Pliocene
TypeFormation
Lithology
PrimaryLimestone
OtherSiltstone
Location
Coordinates19.5°N 71.2°W / 19.5; -71.2
Approximate paleocoordinates19.5°N 70.8°W / 19.5; -70.8
Country Dominican Republic
Mao Formation (the Dominican Republic)

Fossil content
  • Antillia coatesi[2]
  • Diaphus aequalis[3]
  • Isophyllia jacksoni, I. maoensis[2]
  • Trachyphyllia mcneilli[2]
gollark: Good luck.
gollark: Fine.```python# from here: https://github.com/Rapptz/RoboDanny/blob/18b92ae2f53927aedebc25fb5eca02c8f6d7a874/cogs/utils/time.pyshort_timedelta_regex = re.compile("""(?:(?P<years>[0-9]{1,8})(?:years?|y))? # e.g. 2y(?:(?P<months>[0-9]{1,8})(?:months?|mo))? # e.g. 2months(?:(?P<weeks>[0-9]{1,8})(?:weeks?|w))? # e.g. 10w(?:(?P<days>[0-9]{1,8})(?:days?|d))? # e.g. 14d(?:(?P<hours>[0-9]{1,8})(?:hours?|h))? # e.g. 12h(?:(?P<minutes>[0-9]{1,8})(?:minutes?|m))? # e.g. 10m(?:(?P<seconds>[0-9]{1,8})(?:seconds?|s))? # e.g. 15s """, re.VERBOSE)def parse_short_timedelta(text): match = short_timedelta_regex.fullmatch(text) if match is None or not match.group(0): raise ValueError("parse failed") data = { k: int(v) for k, v in match.groupdict(default=0).items() } return datetime.datetime.utcnow() + relativedelta(**data)cal = parsedatetime.Calendar()def parse_humantime(text): time_struct, parse_status = cal.parse(text) if parse_status == 1: return datetime.datetime(*time_struct[:6]) else: raise ValueError("parse failed")def parse_time(text): try: return datetime.datetime.strptime(text, "%d/%m/%Y") except: pass try: return parse_short_timedelta(text) except: pass try: return parse_humantime(text) except: pass raise ValueError("could not parse time")```
gollark: ... no.
gollark: The time parsing logic is kind of inconsistent.
gollark: ++remind 9h32m no you aren't.

See also
  • List of fossiliferous stratigraphic units in the Dominican Republic

References
  1. Mao Formation at Fossilworks.org
  2. Budd et al., 2019
  3. Schwarzhans & Aguilera, 2013

Bibliography
  • Ann F. Budd; James D. Woodell; Danwei Huang; James S. Klaus (2019). "Evolution of the Caribbean subfamily Mussinae (Anthozoa: Scleractinia: Faviidae): transitions between solitary and colonial forms". Journal of Systematic Palaeontology. in press (18): 1581–1616. doi:10.1080/14772019.2018.1541932.
  • Werner Schwarzhans; Orangel Aguilera (2013). "Otoliths of the Myctophidae from the Neogene of tropical America". Palaeo Ichthyologica. 13: 83–150.

Further reading
  • A. F. Budd and K. G. Johnson. 1999. Neogene Paleontology in the northern Dominican Republic 19: The family Faviidae (Anthozoa, Scleractinia) part II: The genera Caulastraea, Favia, Diploria, Thysanus, Hadrophyllia, Manicina and Colpophyllia. Bulletins of American Paleontology 356:1-83
  • A. W. Janssen. 1999. Neogene Paleontology in the Northern Dominican Republic 20. Holoplanktonic Mollusks (Gastropoda: Heteropoda and Thecosomata). Bulletins of American Paleontology (358)1-40
  • A. Logan. 1987. Neogene paleontology in the northern Dominican Republic 6. The phylum Brachiopoda. Bulletins of American Paleontology 93(328):44-55
  • J. B. Saunders, P. Jung, and B. Biju-Duval. 1986. Neogene Paleontology in the Northern Dominican Republic: 1. Field Surveys, Lithology, Environment, and Age. Bulletins of American Paleontology 89(323):1-79
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