vs koala

Chrysochromulina campanulifera compared with Phascolarctos cinereus

Key Differences

is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank		koala
Kingdom	Chromista (クロミスタ)	Animalia (動物)
Phylum	Haptophyta (ハプト藻)	Chordata (脊索動物)
Class	Prymnesiophyceae (Prymnesiophyceae)	Mammalia (哺乳類)
Order	Prymnesiales (Prymnesiales)	Diprotodontia (カンガルー目)
Family	Chrysochromulinaceae	Phascolarctidae (Koalas)
Genus	Chrysochromulina	Phascolarctos (Koalas)
Species	Chrysochromulina campanulifera	Phascolarctos cinereus

Conservation Status

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute		koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found in Australia. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Chrysochromulina campanulifera is a marine haptophyte microalga belonging to the genus Chrysochromulina within the family Chrysochromulinaceae, class Prymnesiophyceae. The species epithet campanulifera, meaning bell-bearing, references a distinctive morphological feature of the cell — likely a bell-shaped scale or structural component visible under electron microscopy. This feature exemplifies how fine-scale ultrastructural characters drive species discrimination within Chrysochromulina, a genus currently containing more than fifty described species. C. campanulifera inhabits coastal marine waters and has been documented from Norwegian and Swedish coastal regions, environments that have yielded a disproportionate number of haptophyte species descriptions due to focused Scandinavian phycological research programs from the 1950s onward. The species is a nanoplankton organism — typically two to twenty micrometers in diameter — that participates in primary production and marine carbon cycling. Like other haptophytes, it possesses chloroplasts containing chlorophylls a and c along with carotenoid accessory pigments that give the cells their characteristic golden-brown coloration. The coiling haptonema, a defining feature of the genus, distinguishes Chrysochromulina from related genera such as Prymnesium and Phaeocystis. C. campanulifera has not been formally assessed under IUCN criteria and retains a conservation status of Not Evaluated. Research on this and related species informs understanding of nanoplankton diversity, marine biogeography, and the ecological dynamics of temperate and boreal coastal oceans.

koala

オーストラリア東部・南東部を代表する有袋類で、体重は最大15kgに達し、低カロリーのユーカリの葉食から得るエネルギーを節約するために1日最大22時間を睡眠に費やす。他の哺乳類の多くを死に至らしめる有毒なユーカリ成分を処理するために高度に特化しており、解毒に特別に適応した腸内微生物叢を持つ。クラミジア感染症、生息地の伐採、気候変動により個体数が激減し、2022年に絶滅危惧種に指定された。