New Zealand liverwort (Mataoraphyllum)

IUCN: Extinct

Mataoraphyllum - Extinct Miocene Plant Genus

Mataoraphyllum is an extinct genus of fossil plants that lived during the Late Miocene epoch. The genus was first described in 2011 based on leaf fossils discovered in New Zealand.

These specimens were collected from the Coromandel Peninsula, a site known for its diverse plant fossil assemblages. Research on these fossils provides valuable insights into the prehistoric flora and paleoclimate of the southern hemisphere.

Taxonomy

  • ∟ царство Plantae
  • ∟ division Tracheophytes (Vascular Plants)
  • ∟ subdivision Spermatophytes (Seed plants)
  • ∟ superclass Gymnospermae (Gymnosperms)
  • ∟ division Pinophyta (Conifers)
  • ∟ subclass Cupressidae
  • ∟ order Cupressales (Cypresses and junipers)
  • ∟ family Taxaceae (Yew family)
  • ∟ genus Mataoraphyllum (New Zealand liverwort)

Living Pulse

Morphology

Fossil remains of Mataoraphyllum consist of preserved leaf cuticular compressions. The leaves are typically linear and needle-like, resembling those of modern conifers.

Microscopic analysis of the cuticular layer reveals detailed epidermal cell arrangements. These anatomical features allow researchers to distinguish the genus from other Miocene gymnosperms.

Interesting facts

  • Discovery Site: The genus was discovered in the Coromandel Peninsula of New Zealand, a region renowned for its rich Miocene fossil deposits.
  • Climatic Indicator: The presence of this genus in the Late Miocene leaf assemblage suggests that New Zealand experienced a warm, humid temperate climate during that period.
  • Fossil Preservation: The leaf specimens of this genus are preserved as cuticular compressions, allowing scientists to study their cellular structure in detail.

Geography of distribution

  • New Zealand

Natural varieties

Sources

  • GBIF Backbone Taxonomy (https://www.gbif.org/species/12331696)
  • International Plant Names Index (https://www.ipni.org/)
  • World Flora Online (http://www.worldfloraonline.org/)
  • Wikidata (https://www.wikidata.org/wiki/Q21334011)

See also

Nutmeg yew

Nutmeg yew

Torreya

Torreya is a rare genus of coniferous trees in the family Taxaceae, native to East …

Catkin yew

Catkin yew

Amentotaxus

Amentotaxus is a prehistoric genus of evergreen conifers native to subtropical Southeast Asia. Known as …

Southern yew

Southern yew

Austrotaxus

Austrotaxus is a rare monotypic genus of conifers native to New Caledonia. Represented by its …