Stone Circles. Osseus Pumice – White. Image courtesy of Cmdr. Arras DeCairo 

Slow-growing organisms that can be found exclusively on rocky areas of planets. They are defined by a symbiotic relationship that has evolved between two unicellular organisms. which are now inseparable. One cell type is solely responsible for energy production by either photosynthetic. chemosynthetic or thermosynthetic processes. The symbiotic cells harvest some of this energy, and in turn deposit a hard rock-like substance extracted from the local geology to create a rigid endoskeleton. This structure provides a solid base for the organism to exist. It features complex folds that help increase available surface area for metabolic interactions. Osseus have been observed to create callus-like cell coverings, and withdraw themselves into the endoskeleton for protection.

Osseus is one of the Genera with a dual variant determinant. The cross-Species rule for Stellar Class determinant holds true, i.e. Stellar Class X = Variant Colour Y across all Stellar Class determinant Species within the Genus.

For Stellar Class determinant Species in such Genera it is also possible to state generalised planetary body type and atmosphere preferences as these show a relatively limited set of values. The same is not true for the Material determinant Species. These show considerably more differentiation, to the extent that no generalisation will be made but each Material determinant Species treated individually.

Minimum Colonial Separation: 800m

Species (Stellar Class Deterministic)

Species Name	Percentage of recorded Osseus Population	Vista Genomics Offer Price
Osseus Cornibus	5.49%	1,483,000
Osseus Fractus	16.05%	4,027,800
Osseus Pellebantus	4.46%	9,739,000
Osseus Spiralis	49.23%	2,404,700

Stellar Class and Variant

Stellar Class

O

B

A

F

G

K

M

L

T

TTS

Ae

Y

W

D

N

Variant

Ye

Li

Tu

Gy

In

Em

Gr

Mr

Planetary Body Type: High Metal Content or Rocky

Atmosphere: Ammonia or Carbon Dioxide

Gravity: Less than 0.29G

Osseus Cornibus

An Osseus Species that produces a stacked series of spiral structures up to about three metres in height. These ridged features are upturned to better absorb sunlight for photosynthesis.

Planetary Body Type: High Metal Content (24%), Rocky (76%)
Atmosphere: Carbon Dioxide
Volcanism: No Volcanism

Temperature Pressure Gravity

	Minimum	Average	Mode	Maximum
Temperature (K)	180.00	185.95	181.00	195.39
Pressure (atm)	0.025763644	0.062582344	0.045756201	0.098659346
Gravity (G)	0.04	0.18	0.19	0.27

Galactic Arm Preference: Perseus Arm including Ryker’s Hope and Galactic Centre

Osseus Fractus

 This Osseus Species can grow to over six metres across. They produce wide ridged frills for metabolic interactions including absorbing sunlight for energy production.

Planetary Body Type: High Metal Content (20%), Rocky (80%)
Atmosphere: Carbon Dioxide
Volcanism: No Volcanism

Temperature Pressure Gravity

	Minimum	Average	Mode	Maximum
Temperature (K)	158.67	184.17	181.00	190.00
Pressure (atm)	0.001215788	0.058810337	0.035192199	0.098682949
Gravity (G)	0.04	0.18	0.17	0.27

Galactic Arm Preference: NOT Perseus Arm but including Odin’s Hold and Empyrean Straits

Osseus Pellebantus

A Species of Osseus with a single broad stalk from which extend wide circular structures, with the largest plate capping the top to maximise sunlight absorption.

Planetary Body Type: High Metal Content (26%), Rocky (74%)
Atmosphere: Carbon Dioxide
Volcanism: No Volcanism

Temperature Pressure Gravity

	Minimum	Average	Mode	Maximum
Temperature (K)	191.00	192.90	192.00	196.25
Pressure (atm)	0.058009027	0.08064607	0.069496881	0.098690014
Gravity (G)	0.04	0.21	0.21	0.27

Galactic Arm Preference: NOT Perseus Arm but including Odin’s Hold and Empyrean Straits

Osseus Spiralis

A Species of Osseus that produces coiling spiral structures up to six metres wide. There are ridged folds on their upturned surfaces designed to capture sunlight.

Planetary Body Type: High Metal Content (22%), Rocky (78%)
Atmosphere: Ammonia
Volcanism: Insignificant

Temperature Pressure Gravity

	Minimum	Average	Mode	Maximum
Temperature (K)	160.00	167.24	168.00	191.89
Pressure (atm)	0.000987092	0.00212138	0.001029279	0.069400815
Gravity (G)	0.04	0.18	0.14	0.28

Galactic Arm Preference: No Preference

Species (Material Deterministic)

Species Name	Percentage of recorded Osseus Population	Vista Genomics Offer Price as at 31st March 3310
Osseus Discus	8.07%	12,934,900
Osseus Pumice	16.71%	3,156,300

Osseus Discus

An Osseus Species that appears as half-buried discs with radial patterns, which may resemble natural rock formations from a distance. They absorb geothermal energy from below the surface as well as available heat sources above ground.

 Material and Variant

Material	Cadmium	Mercury	Molybdenum	Niobium	Tin	Tungsten
Variant	White	Lime	Peach	Aquamarine	Blue	Red

Planetary Body Type: High Metal Content (14%), Rocky (85%) or Rocky Ice (1%)
Atmosphere: Ammonia (2%), Methane (5%) or Water (93%)
Volcanism: Low numbers existing on planets across a spectrum of Volcanic activity. Potentially indicates tolerance rather than preference.

Temperature Pressure Gravity

	Minimum	Average	Mode	Maximum
Temperature (K)	68.92	402.53	415.58	451.84
Pressure (atm)	0.001378749	0.079036976	0.079272525	0.0986885
Gravity (G)	0.04	0.05	0.05	0.27

Galactic Arm Preference: No Preference

Osseus Pumice

 An Osseus Species that grows a single thick stalk from which emerges a wide, broadly circular, pitted endoskeleton. This structure is designed to dramatically increase the surface area to volume of the organism, facilitating chemical capture and chemosynthesis on its catalytically active surface.

Material and Variant

Material	Antimony	Polonium	Ruthenium	Technetium	Tellurium	Yttrium
Variant	White	Peach	Gold	Lime	Green	Yellow

Planetary Body Type: High Metal Content (1%), Rocky (17%) or Rocky Ice (82%)
Atmosphere: Argon (77%), Methane (18%) or Nitrogen (5%)
Volcanism: Low numbers existing on planets across a spectrum of Volcanic activity. Potentially indicates tolerance rather than preference.

Temperature Pressure Gravity

	Minimum	Average	Mode	Maximum
Temperature (K)	42.87	80.69	71.00	133.08
Pressure (atm)	0.000987315	0.015387283	0.016304752	0.098605084
Gravity (G)	0.03	0.22	0.27	0.28

Galactic Arm Preference: No Preference

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